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    A comparative study of salt tolerance parameters in 11 wild relatives of Arabidopsis thaliana

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    Type
    Article
    Authors
    Orsini, Francesco
    Paino D'Urzo, Matilde
    Inan, Gunsu
    Serra, Sara
    Oh, Dong-Ha
    Mickelbart, Michael V.
    Consiglio, Federica
    Li, Xia
    Jeong, Jae Cheol
    Yun, Dae-Jin
    Bohnert, Hans J.
    Bressan, Ray Anthony
    Maggio, Albino
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Desert Agriculture Initiative
    Plant Stress Genomics Research Lab
    Date
    2010-07-01
    Online Publication Date
    2010-07-01
    Print Publication Date
    2010-08
    Permanent link to this record
    http://hdl.handle.net/10754/325444
    
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    Abstract
    Salinity is an abiotic stress that limits both yield and the expansion of agricultural crops to new areas. In the last 20 years our basic understanding of the mechanisms underlying plant tolerance and adaptation to saline environments has greatly improved owing to active development of advanced tools in molecular, genomics, and bioinformatics analyses. However, the full potential of investigative power has not been fully exploited, because the use of halophytes as model systems in plant salt tolerance research is largely neglected. The recent introduction of halophytic Arabidopsis-Relative Model Species (ARMS) has begun to compare and relate several unique genetic resources to the well-developed Arabidopsis model. In a search for candidates to begin to understand, through genetic analyses, the biological bases of salt tolerance, 11 wild relatives of Arabidopsis thaliana were compared: Barbarea verna, Capsella bursa-pastoris, Hirschfeldia incana, Lepidium densiflorum, Malcolmia triloba, Lepidium virginicum, Descurainia pinnata, Sisymbrium officinale, Thellungiella parvula, Thellungiella salsuginea (previously T. halophila), and Thlaspi arvense. Among these species, highly salt-tolerant (L. densiflorum and L. virginicum) and moderately salt-tolerant (M. triloba and H. incana) species were identified. Only T. parvula revealed a true halophytic habitus, comparable to the better studied Thellungiella salsuginea. Major differences in growth, water transport properties, and ion accumulation are observed and discussed to describe the distinctive traits and physiological responses that can now be studied genetically in salt stress research. 2010 The Author.
    Citation
    Orsini F, D'Urzo MP, Inan G, Serra S, Oh D-H, et al. (2010) A comparative study of salt tolerance parameters in 11 wild relatives of Arabidopsis thaliana. Journal of Experimental Botany 61: 3787-3798. doi:10.1093/jxb/erq188.
    Publisher
    Oxford University Press (OUP)
    Journal
    Journal of Experimental Botany
    DOI
    10.1093/jxb/erq188
    PubMed ID
    20595237
    PubMed Central ID
    PMC2921208
    ae974a485f413a2113503eed53cd6c53
    10.1093/jxb/erq188
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Desert Agriculture Initiative

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