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  • Open Access


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

    Md. Parvez Anwar1,*, Md. Ariful Islam Khalid1, A. K. M. Mominul Islam1, Sabina Yeasmin1, Sharif Ahmed2, Adel Hadifa3, Ismail A. Ismail4, Akbar Hossain5, Ayman EL Sabagh6,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015822

    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 increasing seedling emergence, growth, vigor… More >

  • Open Access


    The BHLH Transcriptional Factor PIF4 Competes with the R2R3-MYB Transcriptional Factor MYB75 to Fine-Tune Seeds Germination under High Glucose Stress

    Xiaoli Li, Shiyan Lu, Yaru Yang, Wenjie Wei, Jiali Wei, Xiaojun Yuan*, Ping Li*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.016362

    Abstract It is known that the high level of sugar including glucose suppresses seed germination through ABA signal. ABI5 is an essential component to mediate ABA-dependent seed germination inhibition, but underlying mechanism needs more investigation. Previous study demonstrated the PIF4 activated the expression of ABI5 to suppress seed germination in darkness. Here we reported that PIF4 also mediated the seed germination inhibition through ABI5 under high concentration of glucose treatment. Furthermore, we found that PIF4 interacted with PAP1, the central factor to control anthocyanin biosynthesis. Such interaction was confirmed in vitro and in planta. Biochemical and physiological analysis revealed that PAP1… More >

  • Open Access


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

    Md. Ashraful Alam1, Milan Skalicky2, Muhammad Rezaul Kabir1, Md. Monwar Hossain1, Md. Abdul Hakim1, Md. Siddikun Nabi Mandal1, Rabiul Islam3, Md. Babul Anwar3, Akbar Hossain1,*, Fahmy Hassan4, Amaal Mohammadein4, Muhammad Aamir Iqbal5, Marian Brestic2,6, Mohammad Anwar Hossain7, Khalid Rehman Hakeem8, Ayman EL Sabagh9,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.016015

    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 at Jashore under field condition.… More >

  • Open Access


    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., , DOI:10.32604/phyton.2021.015617

    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


    Screening and Assessment of Selected Chilli (Capsicum annuum L.) Genotypes for Drought Tolerance at Seedling Stage

    Md. Rezwan Molla1,2,4, Md. Motiar Rohman2,*, Mahmuda Binte Monsur2, Mirza Hasanuzzaman3,*, Lutful Hassan4

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015591

    Abstract This study was undertaken to investigate oxidative stress tolerant mechanisms in chilli (Capsicum annuum L.) under drought genotypes through evaluating morphological, physiological, biochemical and stomatal parameters. Twenty genotypes were evaluated for their genetic potential to drought stress tolerant at seedling stage. Thirty days old seedlings were exposed to drought stress induced by stop watering for the following 10 days and rewatering for the following one week as recovery. Based on their survival performance, two tolerant genotypes viz. BD-10906 and BD-109012 and two susceptible genotypes viz. BD-10902 and RT-20 were selected for studying the oxidative stress tolerance mechanism. Drought reduced root… More >

  • Open Access


    Diversity Analysis of Chlorophyll, Flavonoid, Anthocyanin, and Nitrogen Balance Index of Tea Based on Dualex

    Yifu Liu1,2, Jiazhen Wang1,2,*, Yao Xiao1, Xiongwen Shi1, Yixia Zeng1

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015557

    Abstract The chemical compositions of tea (Camellia sinensis) are affected by numerous factors, such as cultivar, climate, leaf position, and cultivation pattern. However, under the same conditions, the chemical compositions are mainly determined by varieties. Therefore, we investigated the genetic diversity of chemical compositions of tea tree resources in China to screen excellent germplasm resources. Three chemical compositions index (including chlorophyll index, flavonoid index, and anthocyanin index) and the nitrogen balance index of tea leaves were measured in 102 tea germplasms planted in Chinese Tea Plants Improved Variety Germplasm Resources Nursery (CTPIVGRN) by Dualex on April 15 2019. Results showed that… More >

  • Open Access


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

    Xihua Liu1, Min Luo1, Xiaofei Chen1, Changjun Ding2,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015295

    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 conserved, and the haplotype… More >

  • Open Access


    Functional Role of miRNAs: Key Players in Soybean Improvement

    Kapil Gupta1, Sujit Kumar Mishra2, Shubhra Gupta3, Saurabh Pandey4, Jogeswar Panigrahi5,*, Shabir Hussain Wani6,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015239

    Abstract Soybean (Glycine max (L.) Merr) is an agro-economic crop growing across the world to cater nutrition for both human and animal feed due to the high oil and protein content in its edible seeds. The genes and QTLs associated with important agronomic traits in this crop have already been identified and validated for soybean cyst nematode (SCN), Phytophthora root and stem rot, Pythium root rot and aphid resistance, seed quality, nutrient values, and also employed for genetic improvement in soybean. In the last decade, micro RNAs (miRNAs) have been considered the effector molecules, so the detection and characterization of novel… More >

  • Open Access


    Photodegradation and Removal of Diclofenac by the Green Alga Nannochloropsis oculata

    Danaé Samara Sánchez-Sandoval#, Omar González-Ortega#, Mara Fernanda Navarro-Martínez, Juan Marcos Castro-Tapia, Ramón Fernando García de la Cruz, Ruth Elena Soria-Guerra*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015087

    Abstract The emerging contaminants (ECs) are organic compounds including pharmaceuticals. These products are consumed in large quantities, favoring their continuous entrance to the environment and affecting the health of living beings. Diclofenac is a non-steroidal anti-inflammatory drug with analgesic properties of prolonged release. It is the commonest postoperative analgesic, and it is highly consumed without prescription. In recent years, the capability of microalgae to remove pharmaceuticals in water has been tested as a promising tool. In this work, the removal efficiency of diclofenac (16 µg/mL) by the microalga Nannochloropsis oculata CCAP 186/7 was evaluated. The major nutrient concentrations in Bold’s Basal… More >

  • Open Access


    Quantitative Proteomics Analysis Identifies the Potential Mechanism Underlying Yellow-Green Leave Mutant in Wheat

    Wei Zheng, Zheng Shi, Mei Long, Yuncheng Liao*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.015916

    Abstract Enhancing photosynthesis efficiency is considered as one of the most crucial targets during wheat breeding. However, the molecular basis underlying high photosynthesis efficiency is not well understood up to now. In this study, we investigated the protein expression profile of wheat Jimai5265yg mutant, which is a yellow-green mutant with chlorophylls b deficiency but high photosynthesis efficiency. Though TMT-labeling quantitative proteomics analysis, a total of 72 differential expressed proteins (DEPs) were obtained between the mutant and wild type (WT). GO analysis found that they significantly enriched in thylakoid membrane, pigment binding, magnesium chelatase activity and response to light intensity. KEGG analysis… More >

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