Salt-tolerant genes from halophytes are potential key players of salt tolerance in glycophytes

Yeduguri Himabindu, Thammineni Chakradhar, Madhava C. Reddy, Andrey Kanygin, Kevin Redding, Thummala Chandrasekhar

    Research output: Contribution to journalArticle

    34 Citations (Scopus)

    Abstract

    Crop productivity strongly depends on several biotic and abiotic factors. Salinity is one of the most important abiotic factors, besides drought, extreme temperatures, light and metal stress. The enhanced burden of secondary salinization induced through anthropogenic activities increases pressure on glycophytic crop plants. The recent isolation and characterization of salt tolerance genes encoding signaling components from halophytes, which naturally grow in high salinity, has provided tools for the development of transgenic crop plants with improved salt tolerance and economically beneficial traits. In addition understanding of the differences between glycophytes and halophytes with respect to levels of salinity tolerance is also one of the prerequisite to achieve this goal. Based on the recent developments in mechanisms of salt tolerance in halophytes, we will explore the potential of introducing salt tolerance by choosing the available genes from both dicotyledonous and monocotyledonous halophytes, including the salt overly sensitive system (SOS)-related cation/proton antiporters of plasma (NHX/SOS1) and vacuolar membranes (NHX), energy-related pumps, such as plasma membrane and vacuolar H+ adenosine triphosphatase (PM & V-H+ATPase), vacuolar H+ pyrophosphatases (V-H+PPase) and potassium transporter genes. Various halophyte genes responsible for other processes, such as crosstalk signaling, osmotic solutes production and reactive oxygen species (ROS) suppression, which also enhance salt tolerance will be described. In addition, the transgenic overexpression of halophytic genes in crops (rice, peanut, finger millet, soybean, tomato, alfalfa, jatropha, etc.) will be discussed as a successful mechanism for the induction of salt tolerance. Moreover, the advances in genetic engineering technology for the production of genetically modified crops to achieve the improved salinity tolerance under field conditions will also be discussed.

    Original languageEnglish (US)
    Pages (from-to)39-63
    Number of pages25
    JournalEnvironmental and Experimental Botany
    Volume124
    DOIs
    StatePublished - Apr 1 2016

    Fingerprint

    halophytes
    salt tolerance
    tolerance
    salt
    salts
    gene
    salinity
    crops
    H-transporting ATP synthase
    genes
    salinity tolerance
    crop plant
    crop
    pyrophosphatases
    Jatropha
    antiporters
    gene overexpression
    environmental factors
    membrane
    halophyte

    Keywords

    • Antioxidants
    • Antiporters
    • Crosstalk
    • Glycophytes
    • Halophytes
    • Osmolytes

    ASJC Scopus subject areas

    • Ecology, Evolution, Behavior and Systematics
    • Plant Science
    • Agronomy and Crop Science

    Cite this

    Salt-tolerant genes from halophytes are potential key players of salt tolerance in glycophytes. / Himabindu, Yeduguri; Chakradhar, Thammineni; Reddy, Madhava C.; Kanygin, Andrey; Redding, Kevin; Chandrasekhar, Thummala.

    In: Environmental and Experimental Botany, Vol. 124, 01.04.2016, p. 39-63.

    Research output: Contribution to journalArticle

    Himabindu, Yeduguri ; Chakradhar, Thammineni ; Reddy, Madhava C. ; Kanygin, Andrey ; Redding, Kevin ; Chandrasekhar, Thummala. / Salt-tolerant genes from halophytes are potential key players of salt tolerance in glycophytes. In: Environmental and Experimental Botany. 2016 ; Vol. 124. pp. 39-63.
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    AU - Kanygin, Andrey

    AU - Redding, Kevin

    AU - Chandrasekhar, Thummala

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    KW - Osmolytes

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