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    Salicylic acid regulates photosynthetic electron transfer and stomatal conductance of mung bean (Vigna radiata L.) under salinity stress

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    Name:
    Lotfi_et_al.,_Salicylic_acid_r ...
    Embargo:
    2021-05-06
    Size:
    362.8Kb
    Format:
    PDF
    Description:
    Final Accepted Manuscript
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    Author
    Lotfi, Ramin
    Ghassemi-Golezani, Kazem
    Pessarakli, Mohammad
    Affiliation
    Univ Arizona, Coll Agr & Life Sci, Sch Plant Sci
    Issue Date
    2020-07
    Keywords
    Fluorescence
    Mung bean
    Photosynthesis
    Stomatal conductance
    Salt stress
    Salicylic acid
    
    Metadata
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    Publisher
    ELSEVIER
    Citation
    Lotfi, R., Ghassemi-Golezani, K., & Pessarakli, M. (2020). Salicylic acid regulates photosynthetic electron transfer and stomatal conductance of mung bean (Vigna radiata L.) under salinity stress. Biocatalysis and Agricultural Biotechnology, 101635. https://doi.org/10.1016/j.bcab.2020.101635
    Journal
    BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
    Rights
    © 2020 Elsevier Ltd. All rights reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The role of salicylic acid (0, 1 and 1.5 mM) on photosynthetic electron transfer chain of mung-bean plants grown under salt stress (0, 3, 6 and 9 dS/m(2)) was studied using chlorophyll a fluorescence (ChlF) measurements. Results indicated that accumulation of K+ content decreased but, Na+ content increased with increasing salt stress. SA-treated plants had more K+ and less Na+ content compared with the non-SA treated plants. Application of SA, especially with 1 mM, increased the I-P step of the OJIP transient curve of fluorescence. Salt stress decreased g(s), CCI, F-V, F-M, S-M and PIabs in plants. However, the time taken to reach FM (TFM) increased with increasing salt stress. Application of different concentrations of SA significantly improved gs, CCI, FV, SM, and PIabs of plants. Photosynthetic efficiency of plants improved as a result of SA application via decreasing F-o and increasing F-V/F-M, F-V/F-O, S-M/T-FM and Area under both saline and non-saline conditions. Accumulation of Na+ had negative, but K+ had a positive correlation with gs, CCI and most of the chlorophyll a fluorescence parameters (except, Fo and TFM). A positive correlation was found between g(s) and CCI with PIabs. This research indicated that low gs under saline condition seems to cause losses in PSII efficiency, but the application of SA with 1 mM concentration is the best treatment for the alleviation of salt stress injuries on PSII activity of mung bean plants.
    Note
    12 month embargo; published online: 6 May 2020
    ISSN
    1878-8181
    DOI
    10.1016/j.bcab.2020.101635
    Version
    Final accepted manuscript
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.bcab.2020.101635
    Scopus Count
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    UA Faculty Publications

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