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  • Open Access

    ARTICLE

    Effects of Tsukamurella tyrosinosolvens P9 on growth, physiology and antioxdant enzyme of peanut under drought stress and after re-watering

    CHANGMEI LONG, TINGTING YANG, YUJIE HAN, LIZHEN HAN*

    BIOCELL, Vol.47, No.6, pp. 1417-1430, 2023, DOI:10.32604/biocell.2023.027485

    Abstract Background: The plant-growth-promoting rhizobacterium Tsukamurella tyrosinosolvens is a rare strain of actinomycete, in order to recognize and expand the ecological functions of rare actinomycetes. Methods: In this experiment, we studied the effect of Tsukamurella tyrosinosolvens P9 on the drought resistance of peanut by inoculating peanut seedlings in pots and measuring the growth and physiological indicators of peanut under drought stress and re-watering conditions. Results: The results showed that during drought stress, the relative water content of the soil and leaves, chlorophyll content, and stomatal length, width, and aperture were significantly decreased while the levels of malondialdehyde (MDA), H2O2 and stomatal… More >

  • Open Access

    ARTICLE

    A Brachypodium distachyon calcineurin B-like protein-interacting protein kinase, BdCIPK26, enhances plant adaption to drought and high salinity stress

    QINGCHEN LUO1,#,*, JIALU FENG2,#, XIUQI DENG1

    BIOCELL, Vol.47, No.5, pp. 1145-1158, 2023, DOI:10.32604/biocell.2023.027847

    Abstract As sessile organisms, plants possess a complex system to cope with environmental changes. Ca2+ functions as a vital second messenger in the stress signaling of plants, and the CBL-interacting protein kinases (CIPKs) serve as essential elements in the plant Ca2+ signaling pathway. In this study, calcineurin B-like protein-interacting protein kinase 26 (BdCIPK26) from Brachypodium distachyon was characterized. Overexpression of BdCIPK26 enhanced tolerance to drought and salt stress of transgenic plants. Further investigations revealed that BdCIPK26 participated in abscisic acid (ABA) signaling, conferred hypersensitivity to exogenous ABA in transgenic plants, and promoted endogenous ABA biosynthesis. Moreover, BdCIPK26 was found to maintain… More >

  • Open Access

    ARTICLE

    Melatonin Promotes Rice Seed Germination under Drought Stress by Regulating Antioxidant Capacity

    Luqian Zhang1,#, Xilin Fang1,#, Nan Yu1, Jun Chen1, Haodong Wang1, Quansheng Shen1, Guanghui Chen2,*, Yue Wang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1571-1587, 2023, DOI:10.32604/phyton.2023.025481

    Abstract Drought stress is a serious threat to the germination of plant seeds and the growth of seedlings. Melatonin has been proven to play an important role in alleviating plant stress. However, its effect on seed germination under drought conditions is still poorly understood. Therefore, we studied the effects of melatonin on rice seed germination and physiological characteristics under drought stress. Rice seeds were treated with different concentrations of melatonin (i.e., 0, 20, 100, and 500 μM) and drought stress was simulated with 5% polyethylene glycol 6000 (PEG6000). The results showed that 100 μM melatonin can effectively improve the germination potential,… More >

  • Open Access

    ARTICLE

    Genome-Wide Identification and Characterisation of Abiotic Stress Responsive mTERF Gene Family in Amaranthus hypochondriacus

    Mortaza Hajyzadeh*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1649-1664, 2023, DOI:10.32604/phyton.2023.028028

    Abstract Abiotic stresses at different growth stages in the life of plants negatively affect yield productivity. Therefore, plants, including Amaranthus hypochondriacus, develop adaptive strategies to face the stresses and expand functional diversification. In plants, the mitochondrial transcription termination factors (mTERF) are essential functions in regulation, and organelles (mitochondria and chloroplasts) control gene expression (OGE) under several stress conditions. Based on the in-silico-wide genome and transcriptome analysis, twenty-four mTERF genes were detected in the main targeted mitochondria organelles clustered into three different main groups. The chromosomal location and gene duplication analysis indicated one segmental and one tandem duplication in the genome. The… More >

  • Open Access

    ARTICLE

    Introgression of Drought Tolerance into Elite Basmati Rice Variety through Marker-Assisted Backcrossing

    Muhammad Sabar1,2,#, Shahzad Amir Naveed1,3,4,#,*, Shahid Masood Shah5, Abdul Rehman Khan5, Muhammad Musaddiq Shah6, Tahir Awan1, Muhammad Ramzan Khan3, Zaheer Abbas3, Muhammad Arif1,7,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1421-1438, 2023, DOI:10.32604/phyton.2023.025801

    Abstract Drought is one of the major abiotic threat to rice production in the context of climate change. Super Basmati is an elite, fine grain basmati rice variety grown in Punjab, Pakistan. Due to drought sensitive in nature, its yield has been facing an alarming situation in production because of gradual decrease in irrigated water for a couple of years. Three reported novel QTLs for drought tolerance were selected for incorporation into Super Basmati by employing marker assisted selection strategy. IR55419-04 with novel QTLs was used as a donor parent. Foreground selection was performed by applying PCR based QTL linked SSR… More >

  • Open Access

    ARTICLE

    Salicylic Acid Application Mitigates Oxidative Damage and Improves the Growth Performance of Barley under Drought Stress

    Shah Mohammad Naimul Islam1, Niloy Paul1, Md. Mezanur Rahman2, Md. Ashraful Haque1, Md. Motiar Rohman3, Mohammad Golam Mostofa4,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1513-1537, 2023, DOI:10.32604/phyton.2023.025175

    Abstract Drought is a severe environmental constraint, causing a significant reduction in crop productivity across the world. Salicylic acid (SA) is an important plant growth regulator that helps plants cope with the adverse effects induced by various abiotic stresses. The current study investigated the potential effects of SA on drought tolerance efficacy in two barley (Hordeum vulgare) genotypes, namely BARI barley 5 and BARI barley 7. Ten-day-old barley seedlings were exposed to drought stress by maintaining 7.5% soil moisture content in the absence or presence of 0.5, 1.0 and 1.5 mM SA. Drought exposure led to severe damage to both genotypes,… More >

  • Open Access

    ARTICLE

    Characteristics and expression of the TCP transcription factors family in Allium senescens reveal its potential roles in drought stress responses

    XIAOHONG FU1,#, JIE ZHAO3,#, DANDAN CAO1,2, CHENGXING HE1,2, ZIYI WANG1, YIBEI JIANG1, JIANFENG LIU1,*, GUIXIA LIU1,*

    BIOCELL, Vol.47, No.4, pp. 905-917, 2023, DOI:10.32604/biocell.2023.026930

    Abstract Allium senescens, is an important economic and ecological grassland plant with drought-resistant characteristics. A TCP protein transcription factor is important in the regulation of plant development and adverse responses. However, the mechanism by which TCP transcription functions in drought resistance in Allium senescens is still not clear. Here, we obtained a total of 190,305 transcripts with 115,562 single gene clusters based on RNA-Seq sequencing of Allium senescens under drought stress. The total number of bases was 97,195,096 bp, and the average length was 841.06 bp. Furthermore, we found that there were eight genes of the TCP family that showed an… More >

  • 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 >

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