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Int. J. Mol. Sci. 2017, 18(10), 2152;

The Role of the S40 Gene Family in Leaf Senescence

The Center for Molecular Cell and Systems Biology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou 350002, China
Author to whom correspondence should be addressed.
Received: 14 September 2017 / Revised: 4 October 2017 / Accepted: 11 October 2017 / Published: 16 October 2017
(This article belongs to the Special Issue Molecular Mechanisms in Plant Senescence)
PDF [1569 KB, uploaded 16 October 2017]


Senescence affect different traits of plants, such as the ripening of fruit, number, quality and timing of seed maturation. While senescence is induced by age, growth hormones and different environmental stresses, a highly organized genetic mechanism related to substantial changes in gene expression regulates the process. Only a few genes associated to senescence have been identified in crop plants despite the vital significance of senescence for crop yield. The S40 gene family has been shown to play a role in leaf senescence. The barley HvS40 gene is one of the senescence marker genes which shows expression during age-dependent as well as dark-induced senescence. Like barley HvS40, the Arabidopsis AtS40-3 gene is also induced during natural senescence as well as in response to treatment with abscisic acid, salicylic acid, darkness and pathogen attack. It is speculated that rice OsS40 has a similar function in the leaf senescence of rice. View Full-Text
Keywords: S40 protein family; senescence; environmental cues S40 protein family; senescence; environmental cues

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Jehanzeb, M.; Zheng, X.; Miao, Y. The Role of the S40 Gene Family in Leaf Senescence. Int. J. Mol. Sci. 2017, 18, 2152.

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