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ARBUSCULAR MYCORRHIZAL FUNGI ENCOURAGE DROUGHT TOLERANCE OF Chlorophytum borivilianum BY ENHANCING ANTIOXIDANT ENZYME SYSTEM

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Title ARBUSCULAR MYCORRHIZAL FUNGI ENCOURAGE DROUGHT TOLERANCE OF Chlorophytum borivilianum BY ENHANCING ANTIOXIDANT ENZYME SYSTEM
Not Available
 
Creator Sushma Dave
J.C. Tarafdar
 
Subject Antioxidant enzymes
arbuscular mycorrhiza
Chlorophytum borivilianum
drought stress
Glomus species
 
Description Not Available
Chlorophytum borivilianum, due to the presence of high valued
industrially important steroidal saponins in its roots, has attracted
pharmacological societies worldwide and motivated the farmers of arid
and semi-arid zones to cultivate this medicinal herb on commercial scale.
However, drought stress is a major abiotic constraint in the successful
cultivation of this crop in these areas. One possible way to enhance its
production is to improve its drought tolerance through arbuscular
mycorrhizal symbiosis. The mechanism by which mycorrhizal symbiosis
protects the plants against reactive oxygen species, induced by drought
stress, is investigated by evaluating the activity of a set of antioxidant
enzymes in relation to different mycorrhizal inocula at various growth
stages. The influence of three mycorrhizal inocula viz., Glomus
fasciculatum, G. intraradices and G. mosseae on superoxide dismutase,
catalase, glutathione reductase, glutathione-s-transferase, polyphenol
oxidase and peroxidase enzyme activities were evaluated in well-watered
and drought stressed conditions. The result revealed that the entire
mycorrhizal plant materials showed higher drought tolerance effect than
non-mycorrhizal ones by enhancing antioxidant enzyme activities.
Antioxidant activities were more at 180 days of crop harvest. Therefore,
it is recommended to harvest C. borivilianum roots at 180 days crop age.
Mycorrhizal drought-stressed roots showed significantly higher antioxidant activities than the well-watered conditions. Thus, it can be assumed that higher antioxidant activities in roots of mycorrhizal plants
might have contributed to alleviate the oxidative damage to biomolecules. The cultivation of C. borivilianum with arbuscular mycorrhizae in aridzone, therefore, can be a value addition against drought stress.
Not Available
 
Date 2020-08-10T11:12:04Z
2020-08-10T11:12:04Z
2012-02-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/39242
 
Language English
 
Relation Not Available;
 
Publisher Not Available