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- W2073403900 endingPage "1045" @default.
- W2073403900 startingPage "1034" @default.
- W2073403900 abstract "Abstract Transgenic tomato (Solanum lycopersicum) lines overexpressing yeast spermidine synthase (ySpdSyn), an enzyme involved in polyamine (PA) biosynthesis, were developed. These transgenic lines accumulate higher levels of spermidine (Spd) than the wild-type plants and were examined for responses to the fungal necrotrophs Botrytis cinerea and Alternaria solani, bacterial pathogen Pseudomonas syringae pv tomato DC3000, and larvae of the chewing insect tobacco hornworm (Manduca sexta). The Spd-accumulating transgenic tomato lines were more susceptible to B. cinerea than the wild-type plants; however, responses to A. solani, P. syringae, or M. sexta were similar to the wild-type plants. Exogenous application of ethylene precursors, S-adenosyl-Met and 1-aminocyclopropane-1-carboxylic acid, or PA biosynthesis inhibitors reversed the response of the transgenic plants to B. cinerea. The increased susceptibility of the ySpdSyn transgenic tomato to B. cinerea was associated with down-regulation of gene transcripts involved in ethylene biosynthesis and signaling. These data suggest that PA-mediated susceptibility to B. cinerea is linked to interference with the functions of ethylene in plant defense." @default.
- W2073403900 created "2016-06-24" @default.
- W2073403900 creator A5002408469 @default.
- W2073403900 creator A5010827495 @default.
- W2073403900 creator A5036341562 @default.
- W2073403900 creator A5045632763 @default.
- W2073403900 creator A5052501119 @default.
- W2073403900 creator A5055661886 @default.
- W2073403900 creator A5073364810 @default.
- W2073403900 creator A5082013050 @default.
- W2073403900 date "2011-11-29" @default.
- W2073403900 modified "2023-10-15" @default.
- W2073403900 title "Polyamines Attenuate Ethylene-Mediated Defense Responses to Abrogate Resistance to <i>Botrytis cinerea</i> in Tomato " @default.
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