Salicylic Acid and its Function in Plant Immunity

• Published in: Journal of integrative plant biology Vol. 53; no. 6; pp. 412 - 428
• Main Authors: An, Chuanfu, Mou, Zhonglin
• Format: Journal Article
• Language: English
• Published: Melbourne, Australia Blackwell Publishing Asia 01.06.2011; Department of Microbiology and Cell Science, University of Florida, Gainesville, FL 32611, USA
• Subjects: crosstalk; NPR1; plant defense; Plant Growth Regulators - metabolism; Plant Immunity - immunology; SA biosensor; salicylic acid (SA); Salicylic Acid - analysis; Salicylic Acid - metabolism; Signal Transduction - immunology; systemic acquired resistance; 信号网络; 分子生物学方法; 植物免疫力; 水杨酸; 生物信息学技术; 肽类激素; 酚类化合物; 防御信号; salicylic acid (SA); systemic acquired resistance; SA biosensor; plant defense; crosstalk; NPR1
• ISSN: 1672-9072; 1744-7909; 1744-7909
• DOI: 10.1111/j.1744-7909.2011.01043.x

The small phenolic compound salicylic acid （SA） plays an important regulatory role in multiple physiological processes including plant im- mune response. Significant progress has been made during the past two decades in understanding the SA-mediated defense signaling network. Characterization of a number of genes functioning in SA biosynthesis, conjugation, accumulation, signaling, and crosstalk with other hormones such as jasmonic acid, ethylene, abscisic acid, auxin, gibberellic acid, cytokinin, brassinosteroid, and peptide hormones has sketched the finely tuned immune response network. Full understanding of the mech- anism of plant immunity will need to take advantage of fast developing genomics tools and bioinformatics techniques. However, elucidating genetic components involved in these pathways by conventional ge- netics, biochemistry, and molecular biology approaches will continue to be a major task of the community. High-throughput method for SA quantification holds the potential for isolating additional mutants related to SA-mediated defense signaling.