J Integr Plant Biol. ›› 2010, Vol. 52 ›› Issue (3): 308-314.DOI: 10.1111/j.1744-7909.2010.00895.x

• Plant-environmental Interactions • Previous Articles     Next Articles

Organ-Specific Responses of Vacuolar H+-ATPase in the Shoots and Roots of C3 Halophyte Suaeda salsa to NaCl

Ming-Feng Yang1,2, Jie Song1 and Bao-Shan Wang1*   

  1. 1Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Jinan 250014, China
    2Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China
    *Author for correspondence
    Tel: +86 531 8618 0197; Fax: +86 531 8618 0954; E-mail: bswang@sdnu.edu.cn
  • Received:2009-06-17 Accepted:2009-10-16 Published:2010-03-01

Abstract:

Suaeda salsa L. is a halophytic species that is well adapted to high salinity. In order to understand its salt tolerance mechanism, we examined the growth and vacuolar H+-ATPase (V-ATPase) response to NaCl within the shoots and roots. The growth of shoots, but not roots, was dramatically stimulated by NaCl. Cl and Na+ were mainly accumulated in shoots. V-ATPase activity was significantly increased by NaCl in roots and especially in shoots. Interestingly, antisera ATP95 and ATP88b detected three V1 subunits (66, 55 and 36 KDa) of V-ATPase only in shoots, while an 18 kDa V0 subunit of V-ATPase was detected by both antisera in shoots and roots. It suggested that the tissue-specific characteristics of V-ATPase were related to the different patterns of growth and ion accumulation in shoots and roots of S. salsa.


Yang MF, Song J, Wang BS (2010) Organ-specific responses of vacuolar H+-ATPase in the shoots and roots of C3 halophyte Suaeda salsa to NaCl. J. Integr. Plant Biol. 52(3), 308–314.

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