Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil

Soil acidity is a major limiting factor for upland crops. Arbuscular mycorrhizal fungi (AMF) help improve soil fertility through a fallow enriching tree, Macaranga denticulata, and directly enhance growth of many crops, but its benefit to legumes in acid soil are not known. Three experiments evaluat...

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Main Authors: Ayut Kongpun, Bernard Dell, Benjavan Rerkasem
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/53954
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-539542018-09-04T10:03:18Z Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil Ayut Kongpun Bernard Dell Benjavan Rerkasem Multidisciplinary Soil acidity is a major limiting factor for upland crops. Arbuscular mycorrhizal fungi (AMF) help improve soil fertility through a fallow enriching tree, Macaranga denticulata, and directly enhance growth of many crops, but its benefit to legumes in acid soil are not known. Three experiments evaluated the benefits from AMF on legumes growing on acidic, low phosphorus soil (pH 5, 11 mg P kg-1 by Bray II). In Experiment 1, root zone soil and root fragments of M. denticulata significantly increased cowpea (Vigna unguiculata) growth and P uptake. In experiment 2, CMU22 - a strain of Acaulospora morrowiae propagated from a single spore in the rhizosphere of mimosa (Mimosa invisa) - growing in soil with pH 5 and 11 mg P kg-1 was as effective as soil from the root zone of M. denticulata on cowpea and mimosa growth. In experiment 3, cowpea growing in soil with pH 5 and 11 mg P kg-1 was inoculated with varying rates of mimosa root zone soil containing CMU22 and CMU22 spores. Both types of inoculum promoted cowpea growth, but at a low rate of 100 spores plant-1. Root zone soil that contained infected root fragments and hyphae, as well as spores, was more effective. Arbuscular mycorrhizal fungi adapted to acidic, low P soils have been shown to be effective in alleviating acid soil stress in legumes, with CMU22, an Acaulospora morrowiae, especially well adapted to acid soil. 2018-09-04T10:03:18Z 2018-09-04T10:03:18Z 2014-01-01 Journal 16851994 2-s2.0-84902347922 10.12982/CMUJNS.2014.0026 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84902347922&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/53954
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Multidisciplinary
spellingShingle Multidisciplinary
Ayut Kongpun
Bernard Dell
Benjavan Rerkasem
Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
description Soil acidity is a major limiting factor for upland crops. Arbuscular mycorrhizal fungi (AMF) help improve soil fertility through a fallow enriching tree, Macaranga denticulata, and directly enhance growth of many crops, but its benefit to legumes in acid soil are not known. Three experiments evaluated the benefits from AMF on legumes growing on acidic, low phosphorus soil (pH 5, 11 mg P kg-1 by Bray II). In Experiment 1, root zone soil and root fragments of M. denticulata significantly increased cowpea (Vigna unguiculata) growth and P uptake. In experiment 2, CMU22 - a strain of Acaulospora morrowiae propagated from a single spore in the rhizosphere of mimosa (Mimosa invisa) - growing in soil with pH 5 and 11 mg P kg-1 was as effective as soil from the root zone of M. denticulata on cowpea and mimosa growth. In experiment 3, cowpea growing in soil with pH 5 and 11 mg P kg-1 was inoculated with varying rates of mimosa root zone soil containing CMU22 and CMU22 spores. Both types of inoculum promoted cowpea growth, but at a low rate of 100 spores plant-1. Root zone soil that contained infected root fragments and hyphae, as well as spores, was more effective. Arbuscular mycorrhizal fungi adapted to acidic, low P soils have been shown to be effective in alleviating acid soil stress in legumes, with CMU22, an Acaulospora morrowiae, especially well adapted to acid soil.
format Journal
author Ayut Kongpun
Bernard Dell
Benjavan Rerkasem
author_facet Ayut Kongpun
Bernard Dell
Benjavan Rerkasem
author_sort Ayut Kongpun
title Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
title_short Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
title_full Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
title_fullStr Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
title_full_unstemmed Acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
title_sort acid-adapted arbuscular mycorrhizal fungi promote growth of legumes in phosphorus-deficient acid soil
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84902347922&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/53954
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