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The role of piscidic acid secreted by pigeonpea roots grown in an Alfisol with low-P fertility

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Relation http://oar.icrisat.org/10840/
http://dx.doi.org/10.1007/978-94-011-1650-3_34
10.1007/978-94-011-1650-3_34
 
Title The role of piscidic acid secreted by pigeonpea roots grown in an Alfisol with low-P fertility
 
Creator Ae, N
Arihara, J
Okada, K
Yoshihara, T
Otani, T
Johansen, C
 
Subject Soil Fertility
Soil
Pigeonpea
 
Description In India, pigeonpea (Cajanus cajan (L.) Millsp.) has been traditionally grown as an intercrop, mainly with cereals such as sorghum (Sorghum bicolor (L.) Moench) and pearl millet (Pennisetum americanum (L.) Leeke) under low inputs of fertilizers. The response of pigeonpea to applied phosphorus (P) is generally low even in low-P Alfisols where a major fraction of inorganic P is in the iron-associated form (Fe-P). Pigeonpea has a special ability to take up P from low-P Alfisols on which other crops (sorghum, maize (Zea mays L.), soybean (Glycine max (L.) Merrill), and pearl millet) cannot survive. This characteristic is attributed to piscidic acid and its derivative, which is secreted from the roots of pigeonpea, but not by those of the other crop species. These substances can release P from Fe-P by chelating Fe3+. From results of both the composition of mineral contents and the growth stimulated by the inoculation of VAM fungi we propose a mechanism of P acquisition by pigeonpea from an Alfisol.
 
Publisher Springer
 
Contributor Randall, P J
Delhaize, E
Richards, R A
Munns, R
 
Date 2010
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10840/1/The%20role%20of%20piscidic%20acid%20secreted%20by%20pigeon%20pea%20roots%20grown%20in%20an%20Alfisol.pdf
Ae, N and Arihara, J and Okada, K and Yoshihara, T and Otani, T and Johansen, C (2010) The role of piscidic acid secreted by pigeonpea roots grown in an Alfisol with low-P fertility. In: Genetic Aspects of Plant Mineral Nutrition. Developments in Plant and Soil Sciences book series (DPSS, volume 50) . Springer, pp. 279-288. ISBN 978-94-010-4721-0