Signal regulators of systemic acquired resistance

Salicylic acid (SA) is an important phytohormone that plays a vital role in a number of physiological responses, including plant defense. The last two decades have witnessed a number of breakthroughs related to biosynthesis, transport, perception and signaling mediated by SA. These findings demonstr...

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Bibliographic Details
Published in:Frontiers in plant science 2015-04, Vol.6, p.228-228
Main Authors: Gao, Qing-Ming, Zhu, Shifeng, Kachroo, Pradeep, Kachroo, Aardra
Format: Article
Language:English
Subjects:
glycerol-3-phosphate
Lipids
plant defense
Plant Science
Reactive Oxygen Species
Systemic resistance
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Summary:Salicylic acid (SA) is an important phytohormone that plays a vital role in a number of physiological responses, including plant defense. The last two decades have witnessed a number of breakthroughs related to biosynthesis, transport, perception and signaling mediated by SA. These findings demonstrate that SA plays a crictical role in both local and systemic defense responses. Systemic acquired resistance (SAR) is one such SA-dependent response. SAR is a long distance signaling mechanism that provides broad spectrum and long-lasting resistance to secondary infections throughout the plant. This unique feature makes SAR a highly desirable trait in crop production. This review summarizes the recent advances in the role of SA in SAR and discusses its relationship to other SAR inducers.
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2015.00228