Shabana, Y., Mohamed, Z. (2003). INTEGRATED CONTROL OF WATER HYACINTH BY USING Alternaria eichhorniae ISOLATE S (AES) WITH A PHENYLPROPANOID PATHWAY INHIBITOR. Journal of Plant Production, 28(1), 333-342. doi: 10.21608/jpp.2003.241872
Y. M. Shabana; Z. A. Mohamed. "INTEGRATED CONTROL OF WATER HYACINTH BY USING Alternaria eichhorniae ISOLATE S (AES) WITH A PHENYLPROPANOID PATHWAY INHIBITOR". Journal of Plant Production, 28, 1, 2003, 333-342. doi: 10.21608/jpp.2003.241872
Shabana, Y., Mohamed, Z. (2003). 'INTEGRATED CONTROL OF WATER HYACINTH BY USING Alternaria eichhorniae ISOLATE S (AES) WITH A PHENYLPROPANOID PATHWAY INHIBITOR', Journal of Plant Production, 28(1), pp. 333-342. doi: 10.21608/jpp.2003.241872
Shabana, Y., Mohamed, Z. INTEGRATED CONTROL OF WATER HYACINTH BY USING Alternaria eichhorniae ISOLATE S (AES) WITH A PHENYLPROPANOID PATHWAY INHIBITOR. Journal of Plant Production, 2003; 28(1): 333-342. doi: 10.21608/jpp.2003.241872
INTEGRATED CONTROL OF WATER HYACINTH BY USING Alternaria eichhorniae ISOLATE S (AES) WITH A PHENYLPROPANOID PATHWAY INHIBITOR
1Plant Pathology Department Faculty of Agriculture, Mansoura University, EI-Mansoura 35516, Egypt
2Agricultural Botany Department Faculty of Agriculture, Mansoura University, EI-Mansoura 35516, Egypt
Abstract
The fungus Alternaria eichhorniae isolate 5 (Ae5) is being developed as an effective mycoherbicide against water hyacinth in Egypt. In order to improve its virulance, an integration with MDCA, a phenylpropanoid pathway inhibitor, which weakens the plant defence system, was explored. The disease severity induced by Ae5 increased when its formulation was applied to water hyacinth plants pretreated with MDCA. Infection with Ae5 amplified the total phenol concentration in diseased water hyacinth leaves whereas MDCA reduced it. Plants treated with both Ae5 and MDCA contained level 0 f total phenols comparable tot hat i n the untreated control plants. Anatomically, phenol-storing cells were recorded at 3 locations within leaf tissues: within the adaxially-Iocated palisade tissue, above the abaxial epidermis and in vicinity of vascular bundles. Dimensions of the all three types were increased in response to infection with Ae5, decreased in response to MDCA treatment and nearly resume the dimensions of those in control leaves in response to the combined treatment. Among the three types of phenol cells, the number of only bundle- associated phenol cells was responded to either Ae5 or MDCA treatment.
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