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245 1 0 _aSystemic acquired resistance induced by BTH in papaya
490 0 _vPhysiological and Molecular Plant Pathology, 63(5), p.237-248, 2003
520 3 _aSystemic acquired resistance (SAR)in Carica papaya L. is induced by benzothiadiazole (BTH). The response is manifested by increased tolerance to infection by the virulent pathogen Phytophthora palmivora, by increased ß-1,3-glucanase and chitinase activities, and by increased accumulation of a PR1 mRNA. Infection of untreated papaya by P. palmivora also induced ß-1,3-glucanase and chitinase activities but at much lower levels. This response to P. palmivora is characteristic of a compatible interaction. Papaya has at least four members of the PR-1 gene family; BTH reduces mRNA accumulation for two of these and increases it in the other two. One of these, PR-1d, is induced over 20-fold; mRNA accumulation for this gene increased for at least 14 days after BTH treatment. In contrast, both chitinase and ß-1,3-glucanase activities peaked after 1-2 days then returned to base levels at approximately 10 days. Papaya has an NPR1 gene that contains structural domains conserved with arabidopsis; these domains are involved in protein-protein interactions and nuclear localization, which are essential for function in SAR of arabidopsis. The papaya NPR1 gene is expressed constitutively and is slightly induced by BTH treatment. Overall, these findings indicate the basic elements of papaya SAR resemble the pathway as described in arabidopsis and tobacco.
650 1 4 _aBENZOTHIADIAZOLE
650 1 4 _aß-1,3-GLUCANASE
650 1 4 _aCARICA PAPAYA
650 1 4 _aCHITINASE
650 1 4 _aNPR1
650 1 4 _aPHYTOPHTHORA PALMIVORA
650 1 4 _aPR1
650 1 4 _aSYSTEMIC ACQUIRED RESISTANCE
700 1 2 _aZhua, Yun J.
700 1 2 _aQiub, Xiaohui
700 1 2 _aMoorec, Paul H.
700 1 2 _aBorth, Wayne.
856 4 0 _uhttps://drive.google.com/file/d/1E51ykM-c-lxPKnx00rCXFhZNBCzDNxpI/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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