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Penicillium Purpurogenum, Unique P Mobilizers in Arid Agro-Ecosystems

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Title Penicillium Purpurogenum, Unique P Mobilizers in Arid Agro-Ecosystems
Not Available
 
Creator B. K. Yadav
J. C. Tarafdar
 
Subject Dehydrogenase
Penicillium purpurogenum
Pearl millet
Phytase
P mobilization
P uptake
phosphatases
 
Description Not Available
A phosphatase and phytase producing fungus, Penicillium purpurogenum, was isolated and efficiency was tested in field on the enhancement of rhizosphere enzyme activities and mobilization of native unavailable phosphorus with pearl millet as a test crop in a loamy sand soil under arid environment. Seed inoculation with the fungi has significantly improved phosphatases (acid and alkaline), phytase, and dehydrogenase activities compared to uninoculated fields. The depletion of organic P was much higher than mineral and phytin P. The relative root growth (Kr) rate was greater between 28 and 35 days. The fungal contribution was significantly more than the plant contribution to the mineralization of mineral-P. However, both pearl millet and P. purpurogenum were equally competent for hydrolysis of phytin P. A significant improvement in plant biomass (30%), root length (21%), P uptake (6%), seed (19%) and straw yield (30%), and P concentration of shoot (15%), root (6%), and seed (33%) resulted from inoculation of P. purpurogenum. It was observed that P. purpurogenum can thrive well under arid-ecosystems. The fungus releases phosphatases and phytase, resulting in more solubilization/hydrolysis of soil unavailable P into plant available form, thereby enhancing the P uptake and pearl millet production in an arid environment.
Not Available
 
Date 2020-09-17T09:28:32Z
2020-09-17T09:28:32Z
2011-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/41371
 
Language English
 
Relation Not Available;
 
Publisher Not Available