Salicylic Acid in Rice (Biosynthesis, Conjugation, and Possible Role)

Silverman, Paul H.; Seskar, Mirjana; Kanter, Dwight; Schweizer, Patrick; Métraux, Jean Pierre; Raskin, Ilya

doi:10.1104/pp.108.2.633

Cited by 382 publications

(280 citation statements)

References 28 publications

(40 reference statements)

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“…Free SA was affected by neither BTH nor pathogen ( Figure 3B). Free SA levels may be tightly controlled by glucosylation as found in other species (40,41) and thus a transient increase in free SA may have fallen between the sampling dates. Similarly, endogenous SA was not increased after pathogen challenge in potato and rice, which also have high basal levels of conjugated and free SA, respectively (40)(41)(42).…”

Section: Resultsmentioning

confidence: 99%

Benzothiadiazole Induces the Accumulation of Phenolics and Improves Resistance to Powdery Mildew in Strawberries

Hukkanen

Kokko

Buchala

et al. 2007

J. Agric. Food Chem.

148

116

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Benzothiadiazole (BTH) enhanced the accumulation of soluble and cell-wall-bound phenolics in strawberry leaves and also improved the resistance to powdery mildew infection under greenhouse conditions. The most pronounced change was seen in the levels of ellagitannins, which increased up to 2-to 6-fold 4 days after the BTH application, but persisted only in the inoculated plants. The induction of phenolic metabolism by BTH was also reflected in the fruits, several compounds being increased in inoculated, BTH-treated plants. Basal salicylic acid (SA) content was high in strawberry leaves, but increased in a similar fashion to other phenolics after the treatments. Several phenolic compounds were identified in strawberries for the first time. For example, ellagic acid deoxyhexose, three agrimoniin-like ellagitannins, sanguiin H-10-and lambertianin C-like ellagitannins in the leaves, ellagic acid, p-coumaric acid, gallic acid, and kaempferol hexose in the cell-wall-bound fraction of the leaves, and kaempferol malonylglucoside in the fruits. The findings show that BTH can enhance the accumulation of phenolics in strawberry plants which may then be involved in the BTH-induced resistance to powdery mildew.

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Section: Resultsmentioning

confidence: 99%

Benzothiadiazole Induces the Accumulation of Phenolics and Improves Resistance to Powdery Mildew in Strawberries

Hukkanen

Kokko

Buchala

et al. 2007

J. Agric. Food Chem.

148

116

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“…Rice appears to have an SA metabolism different from that in Arabidopsis or tobacco. Rice is one of the plant species that contain high levels of SA in tissues of plants grown under normal conditions [37]. The high levels of SA may explain why substrate availability is not a critical factor for regulating MeSA production.…”

Section: Regulation Of Production Of Herbivore-induced Air-borne Mesamentioning

confidence: 99%

Biosynthesis and emission of insect-induced methyl salicylate and methyl benzoate from rice

Zhao

Guan

Ferrer

et al. 2010

Plant Physiology and Biochemistry

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“…Exogenous application of SA or its synthetic functional analog BTH can activate PR-gene expression and enhance host resistance to pathogens [11]. It has been shown that SA is an essential signal for SAR across a wide range of plant species although the mechanism of SA induced SAR might differ from one to another [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

OsWRKY03, a rice transcriptional activator that functions in defense signaling pathway upstream of OsNPR1

et al. 2005

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WRKY family proteins are a class of plant specific transcription factors that involve in many stress response pathways. It has been shown that one Arabidopsis WRKY protein, AtWRKY29/22, is activated by MAP kinase signaling cascade and confers resistance to both bacterial and fungal pathogens. However, little is known about the biological roles of WRKY proteins in rice. In this study, we investigated the expression patterns of rice AtWRKY29/22 homolog, OsWRKY03, under different conditions, and also its possible role involved in plant defense. Our results showed that OsWRKY03 was up-regulated by several defense signaling molecules or different treatments. Further analysis revealed that the expression of OsWRKY03 was light dependent. Transcriptional activation activity of OsWRKY03 was also demonstrated by yeast functional assay. Transient expression of OsWRKY03-GFP fusion protein in onion epidermis cells showed that OsWRKY03 was a nuclear localized protein. OsNPR1 as well as several other pathogenesis-related genes, such as OsPR1b, phenylalanine ammonia-lyase (ZB8) and peroxidase (POX22.3), were induced in OsWRKY03-overexpressing transgenic plants. These results indicated that OsWRKY03 is located upstream of OsNPR1 as a transcriptional activator in salicylic acid (SA)-dependent or jasmonic acid (JA)-dependent defense signaling cascades.

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Salicylic Acid in Rice (Biosynthesis, Conjugation, and Possible Role)

Cited by 382 publications

References 28 publications

Benzothiadiazole Induces the Accumulation of Phenolics and Improves Resistance to Powdery Mildew in Strawberries

Benzothiadiazole Induces the Accumulation of Phenolics and Improves Resistance to Powdery Mildew in Strawberries

Biosynthesis and emission of insect-induced methyl salicylate and methyl benzoate from rice

OsWRKY03, a rice transcriptional activator that functions in defense signaling pathway upstream of OsNPR1

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