ACC Oxidase in the Biosynthesis of Ethylene

John, P. S.; Reynolds, Elizabeth A.; Prescott, Andy G.; Bauchot, A.D.

doi:10.1007/978-94-011-4453-7_1

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…OsACC1 , OsACC3 , and OsACC5 encode ACC synthases responsible for the transformation of S ‐adenosyl‐ l ‐methionine into ACC (John et al , 1999). Previous studies indicated that the presence of plant growth‐promoting bacteria induced the up‐regulation of ACC synthases in plant cells as a consequence of the release of ACC (Penrose et al , 2001).…”

Section: Discussionmentioning

confidence: 99%

“…The gene OsACO encodes an ACC oxidase that catalyses the oxidation of ACC to produce the plant hormone ethylene (John et al , 1999). The detected up‐regulation of OsACC and OsACO , both involved in ethylene biosynthesis, is in agreement with the higher ethylene production levels observed in Nipponbare plants after treatment with OH17 (Laborda et al , 2018).…”

Section: Discussionmentioning

confidence: 99%

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Lysobacter gummosus OH17 induces systemic resistance in Oryza sativa ‘Nipponbare’

Laborda

Chen

et al. 2020

Plant Pathology

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Although rice is one of the most cultivated, consumed, and essential crops worldwide, it is highly susceptible to a wide range of bacterial and fungal pathogens that significantly reduce the production and quality of rice. Recently, our research group reported that the plant growth‐promoting rhizobacterium Lysobacter gummosus OH17 was able to enhance the ethylene levels in Oryza sativa ‘Nipponbare’ plants at the late interaction stages. In this work, L. gummosus OH17 was found to be capable of inducing the overexpression of relevant genes of the jasmonic acid and ethylene transduction pathways in Nipponbare plants, such as OsACC, OsACO, OsERF3, and OsLOX, which resulted in the up‐regulation of a number of pathogenesis‐related proteins. The observed metabolic effects enhanced the disease resistance of rice against the three most devastating rice pathogens: Magnaporthe oryzae causing rice blast, Rhizoctonia solani causing rice sheath blight, and Xanthomonas oryzae pv. oryzae causing bacterial leaf blight. Furthermore, it was shown that L. gummosus OH17 also enhanced ethylene production levels in other O. sativa varieties from both the japonica and indica subspecies. Here, we report for the first time the metabolic alterations produced by plant growth‐promoting rhizobacterium L. gummosus OH17 at the late interaction stages and how these alterations induce systemic resistance.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Lysobacter gummosus OH17 induces systemic resistance in Oryza sativa ‘Nipponbare’

Laborda

Chen

et al. 2020

Plant Pathology

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“…Several ET-responsive TFs were downregulated at the transcriptomic level, while proteomic results revealed that ACC oxidase was downregulated ( Supplementary Datasets 2 and 14 ). ACC oxidase is the enzyme responsible for the final step in the biosynthesis of ET in plants ( John et al., 1999 ). Furthermore, ACC oxidase transcripts exhibited a nucleoside putative modification in the 3’-UTR (position 462) that was differentially increased under

treatment ( Supplementary Dataset 16 ).…”

Section: Discussionmentioning

confidence: 99%

Epitranscriptome changes triggered by ammonium nutrition regulate the proteome response of maritime pine roots

et al. 2022

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Epitranscriptome constitutes a gene expression checkpoint in all living organisms. Nitrogen is an essential element for plant growth and development that influences gene expression at different levels such as epigenome, transcriptome, proteome, and metabolome. Therefore, our hypothesis is that changes in the epitranscriptome may regulate nitrogen metabolism. In this study, epitranscriptomic modifications caused by ammonium nutrition were monitored in maritime pine roots using Oxford Nanopore Technology. Transcriptomic responses mainly affected transcripts involved in nitrogen and carbon metabolism, defense, hormone synthesis/signaling, and translation. Global detection of epitranscriptomic marks was performed to evaluate this posttranscriptional mechanism in un/treated seedlings. Increased N6-methyladenosine (m6A) deposition in the 3’-UTR was observed in response to ammonium, which seems to be correlated with poly(A) lengths and changes in the relative abundance of the corresponding proteins. The results showed that m6A deposition and its dynamics seem to be important regulators of translation under ammonium nutrition. These findings suggest that protein translation is finely regulated through epitranscriptomic marks likely by changes in mRNA poly(A) length, transcript abundance and ribosome protein composition. An integration of multiomics data suggests that the epitranscriptome modulates responses to nutritional, developmental and environmental changes through buffering, filtering, and focusing the final products of gene expression.

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Evolutionary origin of the ethylene biosynthesis pathway in angiosperms

Reynolds

John

2004

The Evolution of Plant Physiology

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ACC Oxidase in the Biosynthesis of Ethylene

Cited by 4 publications

References 27 publications

Lysobacter gummosus OH17 induces systemic resistance in Oryza sativa ‘Nipponbare’

Lysobacter gummosus OH17 induces systemic resistance in Oryza sativa ‘Nipponbare’

Epitranscriptome changes triggered by ammonium nutrition regulate the proteome response of maritime pine roots

Evolutionary origin of the ethylene biosynthesis pathway in angiosperms

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