Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco

Transgenic tobacco plants with severely reduced catalase activity were crossed with NahG plants that do not accumulate salicylic acid. Some of the progeny from the cross spontaneously developed necrosis when grown under strong light, similar to that observed on the parental severely catalase-deficie...

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Main Authors: He Du, Daniel F. Klessig
Format: Article
Language:English
Published: The American Phytopathological Society 1997-09-01
Series:Molecular Plant-Microbe Interactions
Online Access:https://apsjournals.apsnet.org/doi/10.1094/MPMI.1997.10.7.922
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author He Du
Daniel F. Klessig
author_facet He Du
Daniel F. Klessig
author_sort He Du
collection DOAJ
description Transgenic tobacco plants with severely reduced catalase activity were crossed with NahG plants that do not accumulate salicylic acid. Some of the progeny from the cross spontaneously developed necrosis when grown under strong light, similar to that observed on the parental severely catalase-deficient plants. However, in contrast to the parental catalase-deficient plants, these progeny plants did not constitutively express PR-1 genes or develop enhanced resistance. Thus, salicylic acid appears to be required for the induction of these defense responses in catalase-deficient tobacco plants.
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spelling doaj.art-b936518e288246eb93f8ee36fef570b92022-12-21T21:18:25ZengThe American Phytopathological SocietyMolecular Plant-Microbe Interactions0894-02821943-77061997-09-0110792292510.1094/MPMI.1997.10.7.922Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic TobaccoHe DuDaniel F. KlessigTransgenic tobacco plants with severely reduced catalase activity were crossed with NahG plants that do not accumulate salicylic acid. Some of the progeny from the cross spontaneously developed necrosis when grown under strong light, similar to that observed on the parental severely catalase-deficient plants. However, in contrast to the parental catalase-deficient plants, these progeny plants did not constitutively express PR-1 genes or develop enhanced resistance. Thus, salicylic acid appears to be required for the induction of these defense responses in catalase-deficient tobacco plants.https://apsjournals.apsnet.org/doi/10.1094/MPMI.1997.10.7.922
spellingShingle He Du
Daniel F. Klessig
Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco
Molecular Plant-Microbe Interactions
title Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco
title_full Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco
title_fullStr Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco
title_full_unstemmed Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco
title_short Role for Salicylic Acid in the Activation of Defense Responses in Catalase-Deficient Transgenic Tobacco
title_sort role for salicylic acid in the activation of defense responses in catalase deficient transgenic tobacco
url https://apsjournals.apsnet.org/doi/10.1094/MPMI.1997.10.7.922
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