Special lssues

Plant Ecophysiology: Recent Trends and Advancements

Submission Deadline: 01 October 2021 (closed)

Guest Editors

Prof. Khalid Rehman Hakeem, King Abdulaziz University, Saudi Arabia
Dr. Tanveer Bilal Pirzadah, Chandigarh University, India

Summary

Plant systems, both natural and managed, face a wide range of environmental challenges, which are expected to become more intense because of global climate change. Plants have adapted to an incredible range of environments and the fields of ecological and environmental plant physiology have provided mechanistic understanding of the survival, distribution, productivity, and abundance of plant species across the diverse climates of our planet. Ecophysiological techniques have greatly advanced understanding of photosynthesis, respiration, plant water relations and plant responses to abiotic and biotic stresses, from instantaneous to evolutionary timescales. Ecophysiological studies also provide the basis for scaling plant physiological processes from the tissue to the canopy, ecosystem, region and globe. Advancing ecophysiological understanding and approaches to enhance plant responses to new environmental conditions is critical to developing meaningful high-throughput phenotyping tools and maintaining humankind’s supply of goods and services as global climate change intensifies. Therefore, new and improved methods and tools for the production of stress-tolerant plant production with increasing yield and agronomical traits are needed. In recent years, ever-increasing plant multi-omics and bioinformatic tools are used to unravel deeper molecular biological insights imparting plant tolerance to diverse stress mechanisms. The development of last-generation high-throughput screening technologies, known as omics, promises to speed up trait improvement in plants. Hence, this Special Issue aims to integrate recent innovative high-throughput sequencing and computational omics approaches such as genomics, epigenomics, transcriptomics, proteomics, hormonomics, metabolomics, ionomics and phenomics and other related topics which include breeding, biotechnology, biochemistry, systems biology and agricultural practices to make novel progress in delineating the molecular and cellular systems level aspects of stress tolerant plant production. Specifically, we welcome studies that explore the uses of the omics paradigm and their integration through trans-disciplinary bioinformatics, as tools to improve qualitative and quantitative traits in crop species. This issue also illustrates the central role for plant ecophysiology in applying basic research to address current and future challenges to humankind, in particular in conservation of natural ecosystems and adaptation of agriculture to biotic/abiotic stress and global climate change.

Potential topics may include, but are not limited to:
1) Influence of climate change on crop physiology
2) Advanced technologies to mitigate the impact of climate change

3) Multi-omics approach to study plant-abiotic stress mechanisms

4) Synergistic plant-microbe interactions: A way forward to remediate polluted soils
5) Osmolytes and abiotic stress: Responses and adaptations
6) Advanced tools for crop improvement programs
7) Plants under biotic and abiotic stress
8) Biotechnological tools to develop climate resilient crops

9) CRISPR/CAS9-a genome editing technology to develop abiotic stress tolerant plants

10) Advanced phenotyping tools in the plant ecophysiology 


Keywords

Abiotic stress; Biotic stress; Bioinformatics; Crop improvement; CRISPR/Cas9; Genomics; Proteomics; Transcriptomics; Metabolomics; Phenomics

Published Papers


  • Open Access

    ARTICLE

    Functional Analysis of the Genotypic Differences in Response of Pea (Pisum sativum L.) to Calcareous-Induced Iron Deficiency

    Sameh Barhoumi, Hasna Ellouzi, Abdelmajid Krouma
    Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 521-536, 2023, DOI:10.32604/phyton.2022.023555
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Lime-induced iron chlorosis is a major nutritional disorder causing severe plant growth and yield reduction in the calcareous soils of Tunisia. The understanding the behavior of key metabolic functions of peas on calcareous soils, the identification of useful traits of tolerance, and the exploration of the genotypic differences in response to this constraint remain the most efficient approaches due to their coast, environmental benefits, and sustainability. For this purpose, a greenhouse experiment was conducted on three pea genotypes (Alexandra: Alex, Douce de provence: DP, and Merveille de Kelvedon: MK) cultivated on calcareous soil (Fe-deficient) and… More >

  • Open Access

    ARTICLE

    Environmental Drivers and Spatial Prediction of the Critically Endangered Species Thuja sutchuenensis in Sichuan-Chongqing, China

    Liang Xie, Peihao Peng, Haijun Wang, Shengbin Chen
    Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 2069-2086, 2022, DOI:10.32604/phyton.2022.018807
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Identifying the ecological environment suitable for the growth of Thuja sutchuenensis and predicting other potential distribution areas are essential to protect this endangered species. After selecting 24 environmental factors that could affect the distribution of T. sutchuenensis, including climate, topography, soil and Normalized Difference Vegetation Index (NDVI), we adopted the Random Forest-MaxEnt integrated model to analyze our data. Based on the Random Forest study, the contribution of the mean temperature of the warmest quarter, mean temperature of the coldest quarter, annual mean temperature and mean temperature of the driest quarter was large. Based on MaxEnt model prediction… More >

  • Open Access

    ARTICLE

    Proline and Oxidative Metabolism in Young Pecan Trees Associated with Sulphate Accumulation

    Dalila Jacqueline Escudero-Almanza, Oscar Cruz-Alvarez, Ofelia Adriana Hernández-Rodríguez, Juan Luis Jacobo-Cuellar, Esteban Sánchez-Chávez, Pablo Preciado-Rángel, Dámaris Leopoldina Ojeda-Barrios
    Phyton-International Journal of Experimental Botany, Vol.91, No.6, pp. 1141-1152, 2022, DOI:10.32604/phyton.2022.019129
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Pecan [Carya illinoinensis (Wangenh.) K. Koch.] is a deciduous tree whose fruits (nuts) are of high economic value and offer excellent nutritional benefits. However, soils high in sulphates can limit its growth and development. Working with 5-year-old trees of ‘Western Schley’ pecan grown in soils high in sulphates, the levels of proline and oxidative metabolism were recorded in the leaflets. Results showed that different levels of visible leaflet damage (‘sufficiency’, ‘low’, ‘moderate’ or ‘severe’) were associated with different levels of leaflet sulphates (mg kg−1): ‘sufficiency’ (≤40), ‘low’ (41–60), ‘moderate’ (61–80) and ‘severe’ (80–100). ‘Severe’ sulphate damage was… More >

  • Open Access

    ARTICLE

    Transcriptomic and Physiological Analyses of Pigment Accumulation in Eucommia ulmoides ‘Hongye’

    Mengjiao Chen, Jinhui Zhai, Jiajia Zhang, Hui Li, Xinjiang Niu, Yaxin Liu, Yue Ren, Hongyan Du, Jingle Zhu
    Phyton-International Journal of Experimental Botany, Vol.91, No.5, pp. 1027-1044, 2022, DOI:10.32604/phyton.2022.019106
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Eucommia ulmoides ‘Hongye’ is a new ornamental variety of E. ulmoides with excellent red or purple foliage. We found that E. ulmoides ‘Hongye’ exhibited a gradual change from green to red colour under light conditions. However, the colouring mechanism in the leaves of E. ulmoides ‘Hongye’ remains unclear. In this study, we compared the pigment content and leaf colour index of E. ulmoides ‘Hongye’ at five stages with those of E. ulmoides ‘Xiaoye’, which was used as the control variety. The transcriptome sequencing data of the first-period (H1, green) and fifth-period (H5, red) leaves were also analysed and compared. The corresponding… More >

  • Open Access

    ARTICLE

    Germination and Photosynthetic Responses to Salinity and Alkalinity in Avicenna marina Propagules

    Abdallah Atia, Ahmed Abdallah Hussain, Barhoumi Zouhaier
    Phyton-International Journal of Experimental Botany, Vol.91, No.5, pp. 1015-1026, 2022, DOI:10.32604/phyton.2022.017778
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Avicenna marina (Forssk.) Vierh is a halophytic mangrove. The reproductive unit is green and has photosynthetic propagules. Mangroves are naturally exposed to fluctuations in some abiotic factors at the soil surface, including salinity and alkalinity. The objective of this study was to determine the effects of two salts including NaCl and NaHCO3 on germination processes and discuss the relationships between cotyledon photosynthesis and embryo axis growth in A. marina propagules. These propagules came from Al Birk, located on the shoreline of the Saudi Red Sea. The results showed that the studied salts did not affect neither the final More >

  • Open Access

    ARTICLE

    Tree Height-Related Hydraulic Strategy to Cope with Freeze-Thaw Stress in Six Common Urban Tree Species in North China

    Cunyang Niu, Wenkai Shou, Li Ma, Jianqiang Qian
    Phyton-International Journal of Experimental Botany, Vol.91, No.4, pp. 811-825, 2022, DOI:10.32604/phyton.2022.019386
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Urban trees are sensitive to extreme weather events under climate change. Freeze-thaw induced hydraulic failure could induce urban tree dieback and nullify the services they provide. Plant height is a simple but significant trait for plant ecological strategies. Understanding how urban trees with different heights adapt to freeze-thaw stress is increasingly important under climate change. We investigated the relationship between tree height and stem hydraulic functional traits of six common urban tree species in North China to explore tree height-related hydraulic strategies to cope with freeze-thaw stress. Results showed that tall trees had wider vessels,… More >

  • Open Access

    ARTICLE

    Overexpression of a Glycosyltransferase Gene from a Metabolically Poly-Resistant Beckmannia syzigachne Population Alters Growth and Confers Herbicide Resistance to Brachypodium distachyon

    Yizhao Huang, Nannan Li, Deya Wang, Jian Du, Weitang Liu, Jinxin Wang, Wei Li
    Phyton-International Journal of Experimental Botany, Vol.91, No.4, pp. 761-772, 2022, DOI:10.32604/phyton.2022.018462
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Beckmannia syzigachne is a noxious weed for rice-wheat rotations in China. The B. syzigachne (AH-02) population evolved metabolic resistance to fenoxaprop-P-ethyl and mesosulfuron-methyl. To investigate the function of GT73C1 in this population, the GT73C1 gene was amplified by reverse transcription-polymerase chain reaction, and the sequence was 100% consistent with the transcriptome data. Its phylogenetic tree was displayed and annotated using FigTree v1.4.4. The plant overexpression vector of GT73C1 gene was constructed and used to transform Brachypodium distachyon plants. Furthermore, the expression of GT73C1 was significantly induced by fenoxaprop-P-ethyl and mesosulfuron-methyl, which was consistent with the findings from the whole plant More >

  • Open Access

    ARTICLE

    Genome-Wide Analysis of Snapdragon WRKY and VQ Gene Families and Their Expression in Response to Drought and Cold Stresses

    Huaqiao Ding, Lihui Mao, Qingcheng Zou, Wei Hu, Xuerui Cao, Qing Dong
    Phyton-International Journal of Experimental Botany, Vol.91, No.4, pp. 773-789, 2022, DOI:10.32604/phyton.2022.018075
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Snapdragon (Antirrhinum majus) is one of the most widely cultivated grass flowers in the world. WRKY transcription factors, VQ proteins and their interactions play crucial roles in plant response to abiotic stresses. However, little is known about WRKY and VQ gene families in snapdragon. In the present study, WRKY and VQ genes and their interactions were comprehensively analyzed in snapdragon using bioinformatics approaches, and their expression in response to drought and cold stresses was examined using real-time PCR. A total of 67 AmWRKY genes were identified in snapdragon, which were classified into different groups or subgroups based on phylogenetic… More >

  • Open Access

    ARTICLE

    Population Structure Analysis and Genome-Wide Association Study of Tea (Camellia sinensis (L.) K untze) Germplasm in Qiannan, China, Based on SLAFSeq Technology

    Fen Zhang, Weili Tian, Lu Cen, Litang Lv, Xiaofang Zeng, Yulu Chen, Yichen Zhao, Yan Li
    Phyton-International Journal of Experimental Botany, Vol.91, No.4, pp. 791-809, 2022, DOI:10.32604/phyton.2022.018104
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Duyun Maojian tea is a famous tea in China. In this study, the specific-locus amplified fragment (SLAF) sequencing method was used to analyze the population structure and conduct a genome-wide association study (GWAS) of 2 leaf traits of 123 tea plants in Qiannan, China. A total of 462,019 SLAF tags and 11,362,041 single-nucleotide polymorphism (SNP) loci were obtained. The results of phylogenetic tree analysis, cluster analysis, and principal component analysis showed that 123 tea germplasms were clustered into three groups, and the heterozygosity rates for Groups I, II, and II were 0.206, 0.224, and 0.34,… More >

  • Open Access

    ARTICLE

    Diversity Assessment of an Endemic Carpinus oblongifolia (Betulaceae) Using Specific-Locus Amplified Fragment Sequencing and Implications for Conservation

    Sumei Li, Qing Wang, Peng Wang, Shuan Wang, Rutong Yang, Ya Li
    Phyton-International Journal of Experimental Botany, Vol.91, No.3, pp. 617-632, 2022, DOI:10.32604/phyton.2022.017741
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Carpinus oblongifolia is an endemic species and the extant wild populations show a fragmentation distribution in the Baohua Mountain of Jiangsu Province in eastern China. Understanding of genetic diversity plays an important role in C. oblongifolia survival and sustainable development. The wild C. oblongifolia population was artificially divided into four subpopulations according to the microhabitats, and another two subpopulations were constructed by progeny seedlings cultivated with the mature seeds. Then, the leaf buds of 80 individuals from six subpopulations were sampled to develop single nucleotide polymorphisms (SNPs) using specific-locus amplified fragment sequencing (SLAF-seq). Based on these SNPs, we… More >

  • Open Access

    ARTICLE

    Effect of UV Radiation and Other Abiotic Stress Factors on DNA of Different Wild Plant Species Grown in Three Successive Seasons in Alpine and Subalpine Regions

    Svetla P. Gateva, Gabriele Jovtchev, Tsveta V. Angelova, Tzvetana P. Nonova, Nikolay Tyutyundzhiev, Elena G. Geleva, Kostadin Katrandzhiev, Nina A. Nikolova, Dimitar Dimitrov, Christo V. Angelov
    Phyton-International Journal of Experimental Botany, Vol.91, No.2, pp. 293-313, 2022, DOI:10.32604/phyton.2022.016397
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Plants in natural ecosystems are exposed to a combination of UV radiation, ionizing radiation (IR) and other abiotic factors. These factors change with the altitude. We investigated DNA alterations of some wild plants of different plant families in natural ecosystems at three altitudes in Rila Mountain, Bulgaria (1500, 1782, and 2925 m above sea level (a.s.l.) exposed to UV radiation, IR and other abiotic stresses, to assess the tolerance of plant species to the changing environmental conditions in three successive growth seasons. For this purpose, physicochemical, cytogenetic, and molecular methods were applied. DNA damage was assessed… More >

  • Open Access

    ARTICLE

    Genome-Wide Identification, Expression Profiling and Protein-Protein Interaction Properties of the BEL-Like Homeodomain Gene Family in Apple

    Huifeng Li, Qiang Zhao, Hai Wang, Qinglong Dong, Yi Xu
    Phyton-International Journal of Experimental Botany, Vol.91, No.2, pp. 315-331, 2022, DOI:10.32604/phyton.2022.016951
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract BEL1-like homeodomain (BLH) family proteins are homeodomain transcription factors, which are found ubiquitously in plants and play important roles in regulating meristem and flower development. Although BLH proteins have been reported in some plant species, there is very little information available for plants in the Malus genus (e.g., apple tree:Malus domestica). In the present study, we identified 19 apple MdBLH genes. Phylogenetic analysis revealed that the MdBLH genes could be divided into five groups. Analysis of gene structure showed that MdBLH gene has four exons, and the third exon was 61 bp in length. Chromosomal location analysis suggested that… More >

  • Open Access

    ARTICLE

    Light Intensity Affects the Coloration and Structure of Chimeric Leaves of Ananas comosus var. bracteatus

    Wei Yang, Yuke Lin, Yanbin Xue, Meiqin Mao, Xuzixing Zhou, Hao Hu, Jiawen Liu, Lijun Feng, Huiling Zhang, Jiaheng Luo, Jun Ma
    Phyton-International Journal of Experimental Botany, Vol.91, No.2, pp. 333-348, 2022, DOI:10.32604/phyton.2022.016862
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Ananas comosus var. bracteatus is an important ornamental plant because of its green/white chimeric leaves. The accumulation of anthocyanin makes the leaf turn to red especially in the marginal part. However, the red fades away in summer and winter. Light intensity is one of the most important factors affecting leaf color along the seasons. In order to understand the effects of light intensity on the growth and coloration of the chimeric leaves, Ananas comosus var. bracteatus was grown under full sunlight, 50% shade and 75% shade for 75 days to evaluate the concentration of pigments, the color parameters… More >

  • Open Access

    ARTICLE

    Exogenous Glycine Betaine Reduces Drought Damage by Mediating Osmotic Adjustment and Enhancing Antioxidant Defense in Phoebe hunanensis

    Yujie Yang, Chengshi Huang, Zuguo Ge, Bengeng Zhou, Guangju Su, Chunling Liu, Yongjun Fei
    Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 129-148, 2022, DOI:10.32604/phyton.2022.016704
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Drought stress negatively impacts growth and physiological processes in plants. The foliar application of glycine betaine (GB) is an effective and low-cost approach to improve the drought tolerance of trees. This study examined the effect of exogenously applied GB on the cell membrane permeability, osmotic adjustment, and antioxidant enzyme activities of Phoebe hunanensis Hand.-Mazz under drought stress. Two levels (0 and 800 mL) of water irrigation were tested under different applied GB concentrations (0, 50, 100, and 200 mM). Drought stress decreased the relative water content by 58.5% while increased the electric conductivity, malondialdehyde, proline, soluble proteins,… More >

  • Open Access

    ARTICLE

    Changes in Growth, Photosynthetic Pigments, Cell Viability, Lipid Peroxidation and Antioxidant Defense System in Two Varieties of Chickpea (Cicer arietinum L.) Subjected to Salinity Stress

    Zeenat Mushtaq, Shahla Faizan, Basit Gulzar, Humira Mushtaq, Sayyada Bushra, Alisha Hussain, Khalid Rehman Hakeem
    Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 149-168, 2022, DOI:10.32604/phyton.2022.016231
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Salinity is one of the most severe abiotic stresses for crop production. The present study investigates the salinity-induced modulation in growth indicators, morphology and movement of stomata, photosynthetic pigments, activity of carbonic anhydrase as well as nitrate reductase, and antioxidant systems in two varieties of chickpea (Pusa-BG5023, and Pusa-BGD72). On 20th day of sowing, plants were treated with varying levels of NaCl (0, 50, 100, 150 and 200 mM) followed by sampling on 45 days of sowing. Recorded observations on both the varieties reveal that salt stress leads to a significant decline in growth, dry biomass,… More >

  • Open Access

    ARTICLE

    Differential Responses of Soil Organic Carbon Fractions and Carbon Turnover Related Enzyme Activities to Wheat Straw Incorporation in Subtropical China

    Wei Dai, Kaikai Fang, Hui Gao, Jun Wang, Petri Penttinen, Zhimin Sha, Linkui Cao
    Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 169-183, 2022, DOI:10.32604/phyton.2022.016407
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Soil organic carbon (SOC) fractions and C turnover related enzyme activities are essential for nutrient cycling. This is because they are regarded as important indicators of soil fertility and quality. We measured the effects of wheat straw incorporation on SOC fractions and C turnover related enzyme activities in a paddy field in subtropical China. Soil samples were collected from 0–10 cm and 10–20 cm depths after rice harvesting. The total SOC concentrations were higher in the high rate of wheat straw incorporation treatment (NPKS2) than in the not fertilized control (CK) (P <0.05). The concentrations of labile C… More >

  • Open Access

    ARTICLE

    Effects of Region and Elevation on Adaptation of Leaf Functional Traits of an Invasive Plant Erigeron annuus in China

    Yuanyuan Liu, Zhen Li, Lie Xu, Qiang Fu, Yongjian Wang
    Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 115-128, 2022, DOI:10.32604/phyton.2022.015395
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract A key scientific challenge relating to the threat of invasive plants on agriculture at the region level is to understand their adaptation and evolution in functional traits. Leaf functional traits, related to growth and resource utilization, might lead to adaptation of invasive plants to the geographical barriers (region or elevation). In the field experiment, we discussed the effects of region and elevation on leaf functional traits on invasive plant Erigeron annuus in farmland habitats in China. We compared leaf size, coefficient of variation (CV) of leaf traits, and fluctuating asymmetry (FA) of E. annuus from three regions… More >

  • Open Access

    ARTICLE

    Comparison of Morphological and Anatomical Characteristics of Taxus chinensis var. mairei Seedlings Root under Waterlogging Stress in Different Substrates

    Xinru He, Qiong Ding, Bing Sun, Yongjun Fei, Die Hu
    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1673-1684, 2021, DOI:10.32604/phyton.2021.015617
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Four different ratios of river sand, ceramic pellets, vermiculite and perlite (1:1), and field soil were selected as the substrates in this experiment, and four gradient levels of root waterlogging, half waterlogging, full waterlogging and normal were set to investigate the effects of different gradients of waterlogging stress on the root morphology of Taxus chinensis var. mairei seedlings under different substrates. In this study, the root anatomical structure of Taxus chinensis var. mairei under different waterlogging stress was observed by the paraffin section method. The roots of T. chinensis var. mairei were diarch, with no pith and resin canals. There… More >

  • Open Access

    ARTICLE

    Villin Family Members Associated with Multiple Stress Responses in Cotton

    Fenni Lv, Sen Wang, Ruiping Tian, Peng Wang, Kang Liu
    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1645-1660, 2021, DOI:10.32604/phyton.2021.016947
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Villin (VLN) is considered to be one of the most important actin-binding proteins, participates in modulating the actin cytoskeleton dynamics, plays essential role in plant development and resisting adverse environments. However, systematic studies of the VLN gene family have not been reported in cotton (Gossypium). In this study, 14 GhVLNs were identified in G. hirsutum. These GhVLN genes were distributed in 6 A-subgenome chromosomes and 6 D-subgenome chromosomes of the allotetraploid upland cotton and classified into three phylogenetical groups based on the classification model of AtVLNs. In addition, the 14 GhVLN genes have highly conserved gene structure and motif… More >

  • Open Access

    ARTICLE

    Effects of Piriformospora indica on the Respiration of Taxus chinensis var. mairei under Water Stress

    Longsheng Hu, Xinru He, Pujie Wei, Bing Sun, Yongjun Fei, Die Hu
    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1661-1672, 2021, DOI:10.32604/phyton.2021.015871
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Seedlings of Taxus chinensis var. mairei were used as experimental materials to study the adaptation of Piriformospora indica to this plant under water stress. The materials were divided into two groups, namely, with or without inoculation with P. indica. Each group was subjected to four different levels of water stress. Vitality and physiological and biochemical indexes of the roots of T. chinensis var. mairei were regularly measured. Under water stress, T. chinensis var. mairei had significantly decreased root vitality; root vitality was higher in inoculated roots than in uninoculated roots. Under intense water stress, the inoculated roots had a higher soluble sugar… More >

  • Open Access

    ARTICLE

    Structural and Histochemical Features of the Slow-Growing Perennial Coptis chinensis Franch. (Ranunculaceae)

    Jingyuan Yang, Jie Zhou, Jiaojiao Jin, Yi Li, Xia Zhang, Teng Li, Mengdi Zhang, Xiaodong Cai, Chaodong Yang, Cunyu Zhou
    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1685-1696, 2021, DOI:10.32604/phyton.2021.015533
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Huanglian (Coptis chinensis Franch.) is a slow-growing perennial medicinal herb with considerable economic value. This study aimed to determine the structural characteristics and the levels of berberine deposits in the organs and tissues of Huanglian using light and epifluorescence microscopy. The adventitious roots are composed of primary and secondary structures with endodermis, exodermis, and phellem. The rhizome structures are composed of primary and secondary structures with cuticle and phellem. The leaves are composed of sclerenchymatous rings, isolateral mesophyll, and thin cuticles. We detected berberine in the xylem walls of the roots and rhizomes as well as More >

  • Open Access

    ARTICLE

    Identification of Single Nucleotide Polymorphisms and Analysis of Linkage Disequilibrium in Different Bamboo Species Using the Candidate Gene Approach

    Xihua Liu, Min Luo, Xiaofei Chen, Changjun Ding
    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1697-1709, 2021, DOI:10.32604/phyton.2021.015295
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Bamboos are one of the most beautiful and useful plants on Earth. The genetic background and population structure of bamboos are well known, which helps accelerate the process of artificial domestication of bamboo. Partial sequences of six genes involved in nitrogen use efficiency in 32 different bamboo species were analyzed for occurrence of single nucleotide polymorphisms (SNPs). The nucleotide diversity θw and total nucleotide polymorphisms πT of the sequenced DNA regions was 0.05137 and 0.03332, respectively. Both πnonsyn /πsyn and Ka/Ks values were <1. The nucleotide sequences of these six genes were inferred to be relatively… More >

  • Open Access

    ARTICLE

    Potentiality of Different Seed Priming Agents to Mitigate Cold Stress of Winter Rice Seedling

    Md. Parvez Anwar, Md. Ariful Islam Khalid, A. K. M. Mominul Islam, Sabina Yeasmin, Sharif Ahmed, Adel Hadifa, Ismail A. Ismail, Akbar Hossain, Ayman EL Sabagh
    Phyton-International Journal of Experimental Botany, Vol.90, No.5, pp. 1491-1506, 2021, DOI:10.32604/phyton.2021.015822
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Seed priming has proved to be an effective pre-germination seed invigoration technique for different crops to improve seed and seedling performance under different abiotic stresses. In Bangladesh, winter rice is very often exposed to cold waves just after sowing in the nursery bed resulting in poor seed germination and seedling emergence, yellowish and thin seedlings production, and a very low survival rate. Seed priming may mitigate the cold stress during seed germination and seedling emergence and helps in the quality seedling production of winter rice. To evaluate the efficacy of different seed priming techniques in… More >

  • Open Access

    ARTICLE

    Phenotypic and Molecular Assessment of Wheat Genotypes Tolerant to Leaf Blight, Rust and Blast Diseases

    Md. Ashraful Alam, Milan Skalicky, Muhammad Rezaul Kabir, Md. Monwar Hossain, Md. Abdul Hakim, Md. Siddikun Nabi Mandal, Rabiul Islam, Md. Babul Anwar, Akbar Hossain, Fahmy Hassan, Amaal Mohammadein, Muhammad Aamir Iqbal, Marian Brestic, Mohammad Anwar Hossain, Khalid Rehman Hakeem, Ayman EL Sabagh
    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1301-1320, 2021, DOI:10.32604/phyton.2021.016015
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Globally among biotic stresses, diseases like blight, rust and blast constitute prime constraints for reducing wheat productivity especially in Bangladesh. For sustainable productivity, the development of disease-resistant lines and high yielding varieties is vital and necessary. This study was conducted using 122 advanced breeding lines of wheat including 21 varieties developed by Bangladesh Wheat and Maize Research Institute (BAMRI) with aims to identify genotypes having high yield potential and resistance to leaf blight, leaf rust and blast diseases. These genotypes were evaluated for resistance against leaf blight and leaf rust at Dinajpur and wheat blast… More >

  • Open Access

    ARTICLE

    Cloning and Bioinformatics Analysis of the GlROP6 gene in Glehnia littoralis

    Min Yan, Han Wang, Shaohua Liu, Ye Xu, Zizhuo Nie, Yifeng Zhou, Li Li
    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1293-1300, 2021, DOI:10.32604/phyton.2021.015601
    (This article belongs to the Special Issue: Plant Ecophysiology: Recent Trends and Advancements)
    Abstract Rho-related GTPase from plants (ROP) proteins play an essential role in plant stress resistance. In this study, the full-length GlROP6 gene was cloned based on G. littoralis transcriptome sequencing data acquired in response to salt stress. The protein sequence, conserved domains, secondary structure, three-dimensional structure, phylogenetic relationships, and expression pattern of the GlROP6 gene were systematically analysed. Our results showed that the full-length GlROP6 gene had an open reading frame of 606 bp, which encoded 201 amino acid residues with a relative molecular weight of 22.23463 kDa and a theoretical isoelectric point of 9.06. Amino acid sequence analyses… More >

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