Chilli rhizosphere fungus Aspergillus spp. PPA1 promotes vegetative growth of cucumber (Cucumis sativus) plants upon root colonisation

A rhizosphere fungus was isolated from roots of chilli plants and identified as Aspergillus spp. PPA1. The fungus was tested for its ability to promote the growth of cucumber plants in a pot experiment. Cucumber seeds were sown in sterilised field soil amended with wheat grain inoculum (WGI) of PPA...

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Bibliographic Details
Published in:Archiv für Phytopathologie und Pflanzenschutz 2014-06, Vol.47 (10), p.1231-1238
Main Authors: Islam, Shaikhul, Akanda, Abdul Mannan, Sultana, Farjana, Hossain, Md. Motaher
Format: Article
Language:English
Subjects:
Aspergillus
Aspergillus spp
chlorophyll
Cucumber
cucumbers
Cucumis sativus
growth promotion
inoculum
leaf area
PGPF
rhizosphere fungi
root colonisation
roots
seeds
shoots
soil
soil amendments
Triticum aestivum
vegetative growth
wheat
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Summary:A rhizosphere fungus was isolated from roots of chilli plants and identified as Aspergillus spp. PPA1. The fungus was tested for its ability to promote the growth of cucumber plants in a pot experiment. Cucumber seeds were sown in sterilised field soil amended with wheat grain inoculum (WGI) of PPA 1 at the rate of 0.5, 1 and 1.5% w/w, and plants were grown for 21 days in a net house. The treatment with PPA1 significantly increased shoot length, shoot fresh weight, shoot dry weight, root length, root fresh weight, root dry weight, plant length, leaf area and leaf chlorophyll content of cucumber plants compared to non-treated control. The growth promotion rate increased with the increasing concentration of inoculum of PPA1 applied to the soil. The fungus was re-isolated from the roots of cucumber plants at higher frequencies. These results suggest that Aspergillus spp. PPA1 is a root colonising plant-growth promoting fungus for cucumber.
ISSN:1477-2906
0323-5408
1477-2906
DOI:10.1080/03235408.2013.837633