Abscisic acid is involved in chitosan-induced resistance to tobacco necrosis virus (TNV)
Chitosan (CHT) antiviral activity has been further investigated in the pathosystem Phaseolus vulgaris - tobacco necrosis virus (TNV). CHT application elicited both callose apposition and ABA accumulation in leaf tissues, at 12 and 24h after treatment, respectively, and induced a high level of resist...
| Veröffentlicht in: | Plant physiology and biochemistry : PPB. - 1991. - 46(2008), 12 vom: 01. Dez., Seite 1106-11 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
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2008
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| Zugriff auf das übergeordnete Werk: | Plant physiology and biochemistry : PPB |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Abscisic Acid 72S9A8J5GW Masoprocol 7BO8G1BYQU Chitosan 9012-76-4 |
| Zusammenfassung: | Chitosan (CHT) antiviral activity has been further investigated in the pathosystem Phaseolus vulgaris - tobacco necrosis virus (TNV). CHT application elicited both callose apposition and ABA accumulation in leaf tissues, at 12 and 24h after treatment, respectively, and induced a high level of resistance against TNV. Besides, treatment with the ABA inhibitor nordihydroguaiaretic acid (NDGA), before CHT application, reduced both callose deposition and plant resistance to the virus, thus indicating the involvement of ABA in these processes. Exogenous application of ABA also induced a significant resistance to TNV, though this resistance was abolished by NDGA pre-treatment. These results, overall, indicate that the rise of ABA synthesis induced by chitosan plays an important role in enhancing callose deposition but the latter has only a partial effect on virus spreading, which must be constraint by other resistance mechanisms |
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| Beschreibung: | Date Completed 19.02.2009 Date Revised 30.09.2020 published: Print-Electronic CommentIn: Plant Signal Behav. 2009 Jan;4(1):66-8. - PMID 19704712 Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2008.08.002 |