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  • Open Access

    ARTICLE

    Improvement of Selected Morphological, Physiological, and Biochemical Parameters of Banana (Musa acuminata L.) Using Potassium Silicate under Drought Stress Condition Grown in vitro

    Hosny Abdel Aziz1, Mohamed Sharaf2,3, Magdy Omar4, Ahmed Abou El-Yazied5, Nada Ibrahim AlJwaizea6, Shaimaa Ismail5, Mohamed M. A. Omar7, Khadiga Alharbi6,*, Amr Elkelish8,9, Moataz Tawfik10

    Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1019-1036, 2023, DOI:10.32604/phyton.2023.026769

    Abstract Drought stress has become more common in recent years as a result of climate change impacts on the production of banana crops and other fruit trees. The growth and productivity of Musa spp are severely impacted by the gradual degradation of water resources and the erratic distribution pattern of annual precipitation amount. The aim of the work includes increased drought tolerance in light of water scarcity in the world as a result of the bananas’ being gluttonous for water needs. This investigation was carried out from 2019 to 2020 to study the effect of potassium silicate on morphological growth and… More >

  • Open Access

    ARTICLE

    Drought Tolerance in Mung Bean is Associated with the Genotypic Divergence, Regulation of Proline, Photosynthetic Pigment and Water Relation

    Mohammad Rafiqul Islam1, Mohd Mostofa Kamal2, Mohammad Faruk Hossain3, Jamil Hossain4, Mohammad Golam Azam4,11, Mst Masuma Akhter5, M. Kamrul Hasan6, Ibrahim Al-Ashkar7, Khalid F. Almutairi7, Ayman EL Sabagh8,*, Md Atikur Rahman9, Muhammad Aamir Iqbal10, Mohammad Sohidul Islam6,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 955-981, 2023, DOI:10.32604/phyton.2023.025138

    Abstract Drought is one of the critical conditions for the growth and productivity of many crops including mung bean (Vigna radiata L. Wilczek). Screening of genotypes for variations is one of the suitable strategies for evaluating crop adaptability and global food security. In this context, the study investigated the physiological and biochemical responses of four drought tolerant (BARI Mung-8, BMX-08010-2, BMX-010015, BMX-08009-7), and four drought sensitive (BARI Mung-1, BARI Mung-3, BU Mung-4, BMX-05001) mung bean genotypes under wellwatered (WW) and water deficit (WD) conditions. The WW treatment maintained sufficient soil moisture (22% ± 0.5%, i.e., 30% deficit of available water) by… More >

  • Open Access

    ARTICLE

    Selection of Stable Reference Genes for Quantitative Real-Time PCR on Herbaceous Peony (Paeonia lactiflora Pall.) in Response to Drought Stress

    Zhipeng Sheng, Yuting Luan, Cong Xu, Jun Tao*, Daqiu Zhao*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 801-814, 2023, DOI:10.32604/phyton.2023.024953

    Abstract Herbaceous peony (Paeonia lactiflora Pall.), as a high-end cut flower in the international market, has high ornamental and medicinal values. But in Northern China, drought is a major environmental factor influencing the growth and development of P. lactiflora. Quantitative real-time polymerase chain reaction (qRT-PCR) can evaluate gene expression levels under different stress conditions, and stable internal reference is the key for qRT-PCR. At present, there is no systematic screening of internal reference for correcting gene expressions of P. lactiflora in response to drought stress. In this study, 10 candidate genes [ubiquitin (UBQ2), UBQ1, elongation factor 1-α (EF-1α), Histidine (His), eukaryotic… More >

  • Open Access

    ARTICLE

    Chickpea C2H2-Type Zinc Finger Protein ZF2 is a Positive Regulator in Drought Response in Arabidopsis

    Sushuang Liu1,2,#, Yanmin Liu1,2,#, Chundong Liu1, Xingwang Yu2,3, Hao Ma2,4,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 577-590, 2023, DOI:10.32604/phyton.2022.023738

    Abstract Drought is a major abiotic stress limiting agricultural crops production worldwide. In our study, we isolated a novel C2H2-type zinc finger protein gene ZF2 from chickpea. ZF2 consisted of 232 amino acids with two QALGGH motifs in Cys2/His2 zinc finger domain. Transient expression analysis of ZF2:GFP fusion protein showed that ZF2 was a nuclear localized protein. In the yeast assay system, the full-length of ZF2 did not show transcriptional activation. Expression of ZF2 gene was enhanced by treatments of several abiotic stresses and phytohormones. The promoter region of ZF2 contained multiple stress- and hormone-related cis-elements. Overexpression of ZF2 in Arabidopsis… More >

  • Open Access

    ARTICLE

    Overexpression of a sugarcane ScCaM gene negatively regulates salinity and drought stress responses in transgenic Arabidopsis thaliana

    JINXIAN LIU1, JINGFANG FENG2, CHANG ZHANG2, YONGJUAN REN2, WEIHUA SU2, GUANGHENG WU1, XIANYU FU1, NING HUANG3, YOUXIONG QUE2, HUI LING3,*, JUN LUO2,*

    BIOCELL, Vol.47, No.1, pp. 215-225, 2023, DOI:10.32604/biocell.2022.022477

    Abstract Calmodulin (CaM) proteins play a key role in signal transduction under various stresses. In the present study, the effects of a sugarcane ScCaM gene (NCBI accession number: GQ246454) on drought and salt stress tolerance in transgenic Arabidopsis thaliana and Escherichia coli cells were evaluated. The results demonstrated a significant negative role of ScCaM in the drought and salt stress tolerance of transgenic lines of A. thaliana, as indicated by the phenotypes. In addition, the expression of AtP5CS and AtRD29A, two genes tightly related to stress resistance, was significantly lower in the overexpression lines than in the wild type. The growth… More >

  • Open Access

    ARTICLE

    Growth, ROS Markers, Antioxidant Enzymes, Osmotic Regulators and Metabolic Changes in Tartary Buckwheat Subjected to Short Drought

    Yan Wan1,#, Yuan Liang1,#, Xuxiao Gong1,#, Jianyong Ouyang1, Jingwei Huang2, Xiaoyong Wu1, Qi Wu1, Changying Liu1, Xueling Ye1, Xiaoning Cao3, Gang Zhao1, Liang Zou1,*, Dabing Xiang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.1, pp. 35-54, 2023, DOI:10.32604/phyton.2022.021698

    Abstract Tartary buckwheat (Fagopyrum tataricum) is an important pseudocereal feed crop with medicinal and nutritional value. Drought is one of the main causes of reduced growth and yield in these plants. We investigated the growth, physiological, and metabolic responses of the widely promoted Tartary buckwheat variety Chuan Qiao No. 1 to polyethylene glycol (PEG)-mediated drought stress. Drought significantly decreased shoot length, shoot biomass and relative water content. Root length, malondialdehyde content, electrolyte leakage, activities of superoxide dismutase, peroxidase, catalase and amylase, and contents of soluble sugar, soluble protein and proline were increased by PEG-mediated drought. Untargeted metabolomics analysis identified 32 core… More >

  • Open Access

    ARTICLE

    Exploration of Distinct Physiological and Biochemical Alterations in Chickpea (Cicer arietinum L.) under Varying Organic Materials, Drought and Proline Application

    Uttam Kumer Sarker1, A. N. Md. Anamul Karim1, F. M. Jamil Uddin1, Ahmed Khairul Hasan1, Najrul Islam1, Md. Romij Uddin1,*, Md. Alamgir Hossain2, Sabry Hassan3, Mohamed M. Hassan3, Mahmoud F. K. Soliman4

    Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2775-2789, 2022, DOI:10.32604/phyton.2022.023112

    Abstract Chickpea yield is decreasing day by day due to drought stress, which could be an immense risk for future food security in developing countries. Management practices could be the most excellent approach to diminish loss due to this abiotic factor. The current research work was designed to explore the tolerance reaction of chickpea genotypes against management practices, through morphological and biochemical parameters and evaluate yield performance across drought prone location of Bangladesh. Four genotypes BD-6048, BD-6045, BD-6090, BD-6092 and eight management practices, e.g., severe water stress (SWS), i.e., without irrigation, 10 cm thick mulching with rice straw (MRS), 10 cm thick… More >

  • Open Access

    ARTICLE

    Breeding Enrichment of Genetic Variation of Grain Yield and Its Attributes in Bread Wheat under Drought Stress and Well Irrigation

    Dina Swelam1, Abdel Hamid Salem2, Manal Hassan1, Mohammed Ali2,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2699-2717, 2022, DOI:10.32604/phyton.2022.022651

    Abstract Drought stress (DS) is one of the most critical environmental abiotic stresses for wheat production in the arid environments. Selection of high-yielding genotypes tolerant to DS can play a significant role in mitigation the negative impacts associated with DS. In the present study, generation means analysis (GMA) was used to study the performance of two crosses under well irrigation (WI) and deficit irrigation [cross I (Line 44 × Shandweel-1) and cross II (Line 20 × Sakha 93)]. Significant differences were observed for days to heading (DH), days to maturity (DM), plant height (PH), spike length (SL), number of spikes per plant (NS/P), number of… More >

  • Open Access

    ARTICLE

    Exploration of Genetic Pattern of Phenological Traits in Wheat (Triticum aestivum L.) under Drought Stress

    Iqra Ishaaq1, Muhammad Umer Farooq1,2,3,4,*, Syeda Anjum Tahira2, Rizwana Maqbool1, Celaleddin Barutçular3, Muhammad Yasir5, Saira Bano2, Zaid Ulhassan6, Ghassan Zahid7, Muhammad Ahsan Asghar8, Sajad Hussain9, Kocsy Gabor8, Ulkar Ibrahimova10,11, Jianqing Zhu4, Anshu Rastogi12,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2733-2758, 2022, DOI:10.32604/phyton.2022.022094

    Abstract Drought is the major detrimental environmental factor for wheat (Triticum aestivum L.) production. The exploration of genetic patterns underlying drought tolerance is of great significance. Here we report the gene actions controlling the phenological traits using the line × tester model studying 27 crosses and 12 parents under normal irrigation and drought conditions. The results interpreted via multiple analysis (mean performance, correlations, principal component, genetic analysis, heterotic and heterobeltiotic potential) disclosed highly significant differences among germplasm. The phenological waxiness traits (glume, boom, and sheath) were strongly interlinked. Flag leaf area exhibits a positive association with peduncle and spike length under… More >

  • Open Access

    ARTICLE

    Selection and Verification of Reference Genes for qRT-PCR Analysis in Iris domestica under Drought

    Qiang Ai, Cuijing Liu*, Mei Han*, Limin Yang

    Phyton-International Journal of Experimental Botany, Vol.91, No.11, pp. 2537-2548, 2022, DOI:10.32604/phyton.2022.021889

    Abstract Iris domestica is a plant of the Iridaceae family and is drought-tolerant, but its drought-resistance mechanism is not yet clear. Analysing the gene expression changes of I. domestica by qRT-PCR is an important mean to understand its drought resistance characteristics. Nevertheless, a lack of reference genes greatly hinders investigation and research on the adaptation of I. domestica to drought at the molecular and genetic levels. In this study, we assessed the expression stability of 11 candidate gene in I. domestica under drought stress conditions and different tissues using geNorm, NormFinder, BestKeeper and RefFinder tools. The results showed that EF1β was… More >

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