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Biochemical defense responses of black pepper (Piper nigrum L.) to Phytophthora capsici

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Title Biochemical defense responses of black pepper (Piper nigrum L.) to Phytophthora capsici
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Creator Vandana V.V., Suseela Bhai R. and Shamina Azeez
 
Subject Defense related enzymes Lignin Membrane conductance Orthodihydroxy phenol Phytophthora capsici Total phenols
 
Description Not Available
A study on biochemical factors involved in black pepper defense response against Phytophthora capsici,
was carried out in P. capsici susceptible (Sreekara) and resistant (04-P24, shows root resistance to the
pathogen) black pepper lines. Seven important factors e change in membrane conductance, total phenols,
orthodihydroxy (OD) phenols, lignin and defense related enzymes (peroxidase, b-1,3 glucanase and
b-1,4 glucanase) e were studied under uninoculated and pathogen (P. capsici, isolate 06-04) inoculated
condition to know the preformed and induced responses. The pathogen was inoculated (soil inoculation)
and plants were observed for changes, at 24 h intervals for 10 days. On 8th day after inoculation
symptoms started appearing on Sreekara and increased the severity till 10th day. Both root and stem
samples were subjected for biochemical analysis. Of the factors analyzed, it was found that membrane
conductance, OD phenol, lignin and peroxidase activity play significant role in root resistance to P. capsici
in 04-P24. Light microscopy of the portion of root e where pathogen found attached e was also done.
Not Available
 
Date 2019-10-16T09:55:32Z
2019-10-16T09:55:32Z
2014-06-27
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/23482
 
Language English
 
Relation Not Available;
 
Publisher Elsevier