Table of Content

Physiology and Molecular Biology of Plant Stress Tolerance

Submission Deadline: 30 July 2022 (closed)

Guest Editors


Prof. Dr. Mirza Hasanuzzaman, Department of Agronomy, Sher-e-Bangla Agricultural University. mhzsauag@yahoo.com

Summary

Plants exhibits different types of abiotic and biotic stresses continuously throughout its life cycle. Being sessile, plants can’t avoid the stresses through escaping their natural habitat but can tolerate to a certain extent through modifying its physiology and metabolism. In addition, plants are also capable in formation of new molecules and molecular mechanisms to withstand in stressed condition. Different types of physiological and molecular mechanisms i.e.; ion homeostasis and compartmentalization, synthesis of compatible solutes, activation of antioxidants, hormonal regulation is developed in plant to combat with stressed condition of plants. Increment of crop production is crucial to feed the increasing population throughout the world. Both abiotic and biotic stress hinder the crop production to a great extent.

 

Nowadays, many researches are undertaken to escape the stresses or to induce tolerance in plants. Scientists are trying to improve the tolerance mechanisms by exogenous application of substances. To meet up the demand of upcoming food crisis, more high yielding crop varieties should be introduced, incorporating the knowledge of stress tolerance mechanism.

 

In this special issue, we aimed at accumulating the recent progress in plant biology research. Articles on recent advances in plant biology (original research papers, short communications, reviews, mini-reviews) are welcome.


Keywords

Plant Physiology; Gene expression; Plant Stress; Climate Change; Plant Breeding; Stress Signaling; Plant Molecular Biology; Plant Omics; Plant Metabolism; Phytohormones; Plant Biotechnology

Published Papers


  • Open Access

    ARTICLE

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

    JINXIAN LIU, JINGFANG FENG, CHANG ZHANG, YONGJUAN REN, WEIHUA SU, GUANGHENG WU, XIANYU FU, NING HUANG, YOUXIONG QUE, HUI LING, JUN LUO
    BIOCELL, Vol.47, No.1, pp. 215-225, 2023, DOI:10.32604/biocell.2022.022477
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    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

    Nitric oxide alleviates cadmium-impeded growth by limiting ROS accumulation in pea seedlings

    EKHLAQUE A. KHAN, HAMDINO M. I. AHMED, MEENA MISRA, PALLAVI SHARMA, AMARENDRA N. MISRA, MIRZA HASANUZZAMAN
    BIOCELL, Vol.46, No.12, pp. 2583-2593, 2022, DOI:10.32604/biocell.2022.021732
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    Abstract

    Cadmium (Cd) causes oxidative stress, which leads to the oxidation of various biomolecules by the production of reactive oxygen species (ROS) to facilitate programmed cell death (PCD). The antioxidant defense system fails to detoxify ROS when it is produced in excess. Nitric oxide (NO), a gaseous free radical and a phytohormone, regulates various physiological processes of plants. Therefore, this work was undertaken to study the effects of the application of exogenous sodium nitroprusside (SNP, a NO donor) on growth parameters, oxidative stress, accumulation of secondary metabolites, and activities of antioxidant enzymes under Cd stress. Mild (50 µM) and severe (200… More >

  • Open Access

    ARTICLE

    Application of two forms of silicon and their impact on the postharvest and the content of bioactive compounds in cucumber (Cucumis sativus L.) fruits

    YOLANDA GONZÁLEZ-GARCÍA, VALERIA FLORES-ROBLES, GREGORIO CADENAS-PLIEGO, ADALBERTO BENAVIDES-MENDOZA, MARCELINO CABRERA DE LA FUENTE, ALBERTO SANDOVAL-RANGEL, ANTONIO JUÁREZ-MALDONADO
    BIOCELL, Vol.46, No.11, pp. 2497-2506, 2022, DOI:10.32604/biocell.2022.021861
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    Abstract The metabolic activity of the fruits continues even after harvest, which results in the loss of bioactive compounds, a decrease in the quality of the fruits, softening and browning, among other negative effects. The use of certain elements such as silicon can improve postharvest quality, since it is involved in the metabolic, physiological and structural activity of plants, moreover can increase the quality of the fruits. In addition, nanotechnology has had a positive impact on crop yield, nutritional value, fruit quality and can improve antioxidant activity. For these reasons, the use of beneficial elements such as silicon in the form… More >

  • Open Access

    ARTICLE

    In vivo protective effect of late embryogenesis abundant protein (ApSK3 dehydrin) on Agapanthus praecox to promote post-cryopreservation survival

    TINGTING HUANG, SHAN DENG, JIANGYUAN SHENG, DI ZHANG
    BIOCELL, Vol.46, No.11, pp. 2507-2515, 2022, DOI:10.32604/biocell.2022.021314
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    Abstract Dehydrins (DHNs), as members of the late embryogenesis abundant protein family, play critical roles in the protection of seeds from dehydration and plant adaptation to multiple abiotic stresses. Vitrification is a basic method in plant cryopreservation and is characterized by forming a glassy state to prevent lethal ice crystals produced during cryogenic storage. In this study, ApSK3 type DHN was genetically transformed into embryogenic calluses (EC) of Agapanthus praecox by overexpression (OE) and RNA interference (RNAi) techniques to evaluate the in vivo protective effect of DHNs during cryopreservation. The cell viability showed a completely opposite trend in OE and RNAi… More >

  • Open Access

    ARTICLE

    Response of MaHMA2 gene expression and stress tolerance to zinc stress in mulberry (Morus alba L.)

    LEI WANG, QIUXIA DU, YISU SHI, MICHAEL ACKAH, PENG GUO, DANYAN ZHENG, MENGMENG WU, XIN JIN, PEILAN LI, QIAONAN ZHANG, RUIXUE LI, ZHI YIN, MENGDI ZHAO, WEIGUO ZHAO
    BIOCELL, Vol.46, No.10, pp. 2327-2342, 2022, DOI:10.32604/biocell.2022.021542
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    Abstract HMA2 (heavy metal ATPase 2) plays a crucial role in extracellular and intracellular Zn2+ transport across biomembranes, maintaining ion homeostasis, and playing an important role in the normal physiological metabolism, growth, and development of plants. In our study, a novel HMA2 gene, named MaHMA2, was isolated and cloned from white mulberry (Morus alba L.). The gene sequence obtained was 1,342 bp long, with an open reading frame of 1,194 bp, encoding a protein of 397 amino acids, with a predicted molecular mass of 42.852 kD and an isoelectric point of 7.53. This protein belonged to the PIB-type ATPase transport protein… More >

  • Open Access

    ARTICLE

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

    XIN LI, JIANMIN PAN, FAISAL ISLAM, JUANJUAN LI, ZHUONI HOU, ZONGQI YANG, LING XU
    BIOCELL, Vol.46, No.8, pp. 1947-1958, 2022, DOI:10.32604/biocell.2022.019806
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    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

    ARTICLE

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

    JIANMIN PAN, XIN LI, JUANJUAN LI, HUI LIU, ZHUONI HOU, ZONGQI YANG, LING XU
    BIOCELL, Vol.46, No.7, pp. 1751-1762, 2022, DOI:10.32604/biocell.2022.019455
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    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

    ARTICLE

    Exogenous melatonin alleviated growth inhibition and oxidative stress induced by drought stress in apple rootstock

    MEIGE WANG, JUAN GONG, CHUNHUI SONG, ZHENGYANG WANG, SHANGWEI SONG, JIAN JIAO, MIAOMIAO WANG, XIANBO ZHANG, TUANHUI BAI
    BIOCELL, Vol.46, No.7, pp. 1763-1770, 2022, DOI:10.32604/biocell.2022.018934
    (This article belongs to this Special Issue: Physiology and Molecular Biology of Plant Stress Tolerance)
    Abstract

    Drought stress is one of the major environmental obstacles that limit the production and development of apples (Malus domestica Borkh.). The role of melatonin is well known in the protection of plants under environmental stresses. In this study, we investigated the effect of melatonin on apple rootstock M. hupehensis Rehd under drought stress. The results showed that drought inhibited the growth of M. hupehensis and dramatically reduced root surface area, root volume, the number of tips and forks, and root diameter. Drought-induced growth inhibition was significantly decreased by adding melatonin. Net photosynthetic rate (Pn), intercellular CO2 concentration (Ci), stomatal conductance… More >

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