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  • Open Access

    ARTICLE

    Role of foliar spray of plant growth regulators in improving photosynthetic pigments and metabolites in Plantago ovata (Psyllium) under salt stress–A field appraisal

    ABDUL SAMAD1, KANVAL SHAUKAT1,*, MAHMOOD-UR-REHMAN ANSARI2, MEREEN NIZAR1, NOREEN ZAHRA3, AMBREEN NAZ4, HAFIZ MUHAMMAD WALEED IQBAL5, ALI RAZA6, VLADAN PESIC7, IVICA DJALOVIC8

    BIOCELL, Vol.47, No.3, pp. 523-532, 2023, DOI:10.32604/biocell.2023.023704

    Abstract Salinity is one of the major abiotic factors that limit the growth and productivity of plants. Foliar application of plant growth regulators (PGRs) may help plants ameliorate the negative impacts of salinity. Thus, a field experiment was conducted at the Botanical Garden University of Balochistan, Quetta, to explore the potential role of PGRs, i.e., moringa leaf extract (MLE; 10%), proline (PRO; 1 µM), salicylic acid (SA; 250 µM), and thiourea (TU; 10 mM) in ameliorating the impacts of salinity (120 mM) on Plantago ovata, an important medicinal plant. Salinity hampered plant photosynthetic pigments and metabolites but elevated oxidative parameters. However,… More >

  • Open Access

    ARTICLE

    Identification and Characterization of ZF-HD Genes in Response to Abscisic Acid and Abiotic Stresses in Maize

    Xiaojie Jing1,2,3,#, Chunyan Li1,2,3,#, Chengjuan Luo1,2,3, Chaonan Yao1,2,3, Jiahao Zhang1,2,3, Tingting Zhu1,2,3, Jiuguang Wang1,2,3, Chaoxian Liu1,2,3,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 707-723, 2023, DOI:10.32604/phyton.2023.024338

    Abstract The zinc finger homeodomain (ZF-HD) genes belong to the homeobox gene family, playing critical roles in flower development and stress response. Despite their importance, however, to date there has been no genome-wide identification and characterization of the ZF-HD genes that are probably involved in stress responses in maize. In this study, 24 ZF-HD genes were identified, and their chromosomal locations, protein properties, duplication patterns, structures, conserved motifs and expression patterns were investigated. The results revealed that the ZF-HD genes are unevenly distributed on nine chromosomes and that most of these genes lack introns. Six and two ZF-HD genes have undergone… More >

  • Open Access

    ARTICLE

    Genome Wide Characterization of CBL-CIPK Family Genes and Their Responsive Expression in Rosa chinensis

    Lunzeng Huang1,2,#, Hongsheng Gao1,#, Ning Jiang1,2, Yunhong Xu1,2, Zijian Gong1,2, Lele Chen1,2, Shijie Xue1,2, Xiaoyan Li1, Ruichao Liu1,2, Bei Li1, Hongxia Zhang1, Chunyan Yu1,*, Xiaotong Guo1,2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 349-368, 2023, DOI:10.32604/phyton.2022.025467

    Abstract Calcium (Ca2+) plays a pivotal role in various signal transduction pathways. Calcineurin B-like proteins (CBLs) are a unique group of Ca2+ sensors that decode Ca2+ signals by activating the plant specific protein kinase known as the CBL-interacting protein kinase (CIPK). In plants, the CBL-CIPK signaling network regulates multiple signals in response to different extracellular cues including abiotic stress. However, the genome wide annotation and expression patterns of CBLs and CIPKs in woody cutting flower plants are still unclear. In this study, a total number of 7 CBLs (RcCBLs) and 17 CIPKs (RcCIPKs) genes, divided into four and five subfamilies, respectively,… More >

  • Open Access

    REVIEW

    The Role of Salicylic Acid Signal in Plant Growth, Development and Abiotic Stress

    Yulan Hu1, Lulu Zhi1, Ping Li1, John T. Hancock2, Xiangyang Hu1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2591-2605, 2022, DOI:10.32604/phyton.2022.023733

    Abstract In nature, plants are constantly affected by adverse conditions. Unlike animals, plants can resist these adverse stresses only by insisting on their original positions. Stress can be divided into biological stress and abiotic stress, abiotic stress directly affects the growth, development and yield of plants, it spans all developmental stages from seed germination to senescence. In order to adapt to changing environment, plants have evolved well-developed mechanisms that help to perceive the stress signals and enable optimal growth response. Salicylic acid (SA) is an important endogenous signal molecule in plants, which not only regulate some plant growth and development processes,… More >

  • Open Access

    ARTICLE

    Effects of Auxin at Different Concentrations on the Growth, Root Morphology and Cadmium Uptake of Maize (Zea mays L.)

    Lingyan Hu, Haiyan Chen, Guangqun Zhang, Zihao Yu, Kai Yan, Fangdong Zhan, Yongmei He*

    Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 1933-1944, 2022, DOI:10.32604/phyton.2022.020041

    Abstract Indoleacetic acid (IAA) is an important regulator that plays a crucial role in plant growth and responses to abiotic stresses. In the present study, a sand cultivation experiment was carried out to investigate the effects of IAA at different concentrations (0, 0.01, 0.1, 0.5, 1, and 2.5 mmol/L) on maize growth, root morphology, mineral elements (Ca, Mg) and Cd uptake under 20 mg/kg Cd stress. The results showed that 0.01 mmol/L is the optimal IAA concentration for enhancing the Cd tolerance of maize. Compared with the control treatment, 0.01 mmol/L IAA promoted maize growth, with significant increases in the height,… More >

  • Open Access

    ARTICLE

    Genome-wide identification of NAC gene family and expression analysis under abiotic stresses in Salvia miltiorrhiza

    XIN LI1, JIANMIN PAN1, FAISAL ISLAM2, JUANJUAN LI1, ZHUONI HOU1, ZONGQI YANG1, LING XU1,*

    BIOCELL, Vol.46, No.8, pp. 1947-1958, 2022, DOI:10.32604/biocell.2022.019806

    Abstract NAC (NAM, ATAF, CUC) is a class of transcription factors involved in plant growth regulation, abiotic stress responses, morphogenesis and metabolism. Salvia miltiorrhiza is an important Chinese medicinal herb, but the characterization of NAC genes in this species is limited. In this study, based on the Salvia miltiorrhiza genomic databases, 82 NAC transcription factors were identified, which were divided into 14 groups. Meanwhile, phylogenetic analysis, gene structure, chromosomal localization and potential role of SmNACs in abiotic stress conditions were also studied. The results revealed that some SmNACs had different structures than others, which advised that these genes may have multiple/distinct… More >

  • Open Access

    REVIEW

    Crop Improvement and Abiotic Stress Tolerance Promoted by Moringa Leaf Extract

    Md. Abir Ul Islam1, Juthy Abedin Nupur2, Charles T. Hunter3, Abdullah Al Mamun Sohag4, Ashaduzzaman Sagar5, Md. Sazzad Hossain6, Mona F. A. Dawood7,*, Arafat Abdel Hamed Abdel Latef8, Marián Brestič9,10, Md. Tahjib-UI-Arif4,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.8, pp. 1557-1583, 2022, DOI:10.32604/phyton.2022.021556

    Abstract Moringa leaf extract (MLE) has been shown to promote beneficial outcomes in animals and plants. It is rich in amino acids, antioxidants, phytohormones, minerals, and many other bioactive compounds with nutritional and growth-promoting potential. Recent reports indicated that MLE improved abiotic stress tolerance in plants. Our understanding of the mechanisms underlying MLE-mediated abiotic stress tolerance remains limited. This review summarizes the existing literature on the role of MLE in promoting plant abiotic stress acclimation processes. MLE is applied to plants in a variety of ways, including foliar spray, rooting media, and seed priming. Exogenous application of MLE promoted crop plant… More >

  • Open Access

    ARTICLE

    Genome-wide identification of U-box gene family and expression analysis under abiotic stresses in Salvia miltiorrhiza

    JIANMIN PAN1, XIN LI1, JUANJUAN LI1, HUI LIU2, ZHUONI HOU1, ZONGQI YANG1, LING XU1,*

    BIOCELL, Vol.46, No.7, pp. 1751-1762, 2022, DOI:10.32604/biocell.2022.019455

    Abstract Plant U-box (PUB) E3 ubiquitin ligases play important roles in hormone signaling pathways and in response to different abiotic stresses, but little is known about U-box genes in Danshen (root of Salvia miltiorrhiza Bunge). Here, we identified and characterized 70 SmPUB genes based on its genome sequence. Phylogenetic analysis of U-box genes from S. miltiorrhiza and Arabidopsis suggested that they can be clustered into seven subgroups (I–VII). Typical U-box domains were found in all identified SmPUB genes through the analysis of conserved motifs. Moreover, qRT-PCR was applied to analyze the relative expression levels of U-box genes in S. miltiorrhiza roots… More >

  • Open Access

    REVIEW

    Screening and evaluation of chilli (Capsicum annuum L.) genotypes for waterlogging tolerance at seedling stage

    MD. REZWAN MOLLA1,2,4, MD. MOTIAR ROHMAN2,*, MD. ROBYUL ISLAM1,2, MIRZA HASANUZZAMAN3,*, LUTFUL HASSAN4

    BIOCELL, Vol.46, No.7, pp. 1613-1627, 2022, DOI:10.32604/biocell.2022.019243

    Abstract Waterlogging is an illustrious abiotic stress and the constrictions it enforces on plant roots have negative effects on growth and development. This study was undertaken to investigate waterlogging stress tolerant potential in chilli (Capsicum annum L.) genotypes through evaluating morphological, physiological, biochemical and anatomical parameters. Thirty-five days old seedlings of 10 chilli genotypes were exposed to waterlogging stress maintaining water height 3–5 cm over the soil surface artificially for three days. This duration (36–38 DAE) was termed as waterlogging period, and subsequent withdrawal of waterlogging condition (39–45 DAE) was regarded as a recovery phase. Based on their survival performance, two… More >

  • Open Access

    ARTICLE

    Proteomic Profiling and Protein-Protein Interaction Network Reveal the Molecular Mechanisms of Susceptibility to Drought Stress in Canola (Brassica napus L.)

    Reza Shokri-Gharelo1, Ali Bandehagh1,*, Mohammad Anwar Hossain2,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1403-1417, 2022, DOI:10.32604/phyton.2022.020431

    Abstract Drought stress is one of the most important abiotic stresses that plants face frequently in nature. Under drought conditions, many morphological, physiological, and molecular aspects of plants are changed and as a result plants experience a remarkable reduction in growth, yield, and reproduction. To expand our understanding of the molecular basis of the plant response to drought stress, the proteomic profile and protein-protein network of canola (Brassica napus L.) were studied. The focus was to show molecular mechanisms related to canola susceptibility to drought stress. The experiment used a completely randomized design, implemented in a hydroponic system under greenhouse conditions.… More >

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