2024-03-29T13:30:54Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/664562023-06-28T08:00:41Zcom_10234_2508com_10234_9col_10234_6999
Repositori UJI
author
Flors, Victor
author
Slaughter, Ana
author
Daniel, Xavier
author
Luna Diez, Estrella
author
Hohn, Barbara
author
Mauch-Mani, Brigitte
2013-06-07T14:59:33Z
2013-06-07T14:59:33Z
2012
0032-08891532-2548
http://hdl.handle.net/10234/66456
http://dx.doi.org/10.1104/pp.111.191593
An attack of plants by pathogens or treatment with certain resistance-inducing compounds can lead to the establishment of a
unique primed state of defense. Primed plants show enhanced defense reactions upon further challenge with biotic or abiotic
stress. Here, we report that the primed state in Arabidopsis (Arabidopsis thaliana) is still functional in the next generation
without additional treatment. We compared the reactions of Arabidopsis plants that had been either primed with b-aminobutyric acid (BABA) or with an avirulent isolate of the bacteria Pseudomonas syringae pv tomato (PstavrRpt2). The descendants of
primed plants showed a faster and higher accumulation of transcripts of defense-related genes in the salicylic acid signaling
pathway and enhanced disease resistance upon challenge inoculation with a virulent isolate of P. syringae. In addition, the
progeny of primed plants was also more resistant against the oomycete pathogen Hyaloperonospora arabidopsidis. When
transgenerationally primed plants were subjected to an additional priming treatment, their descendants displayed an even
stronger primed phenotype, suggesting that plants can inherit a sensitization for the priming phenomenon. Interestingly, this
primed to be primed phenotype was much reduced in the Arabidopsis b-amino-butyric acid priming mutant ibs1 (induced
BABA sterility1). Our results demonstrate that the primed state of plants is transferred to their progeny and confers improved
protection from pathogen attack as compared to the descendants of unprimed plants.
eng
© 2011 American Society of Plant Biologists. All Rights Reserved.
Descendants of primed arabidopsis plants exhibit resistance to biotic stress
info:eu-repo/semantics/article
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