IMHE OpenIR  > 山地表生过程与生态调控重点实验室
The carboxylate-releasing phosphorus-mobilizing strategy can be proxied by foliar manganese concentration in a large set of chickpea germplasm under low phosphorus supply
Jiayin Pang1,2; Ruchi Bansal3; Hongxia Zhao4; Emilien Bohuon5,6; Hans Lambers1,6; Megan H. Ryan1,2; Kosala Ranathunge6; Kadambot H. M. Siddique1,2
Corresponding AuthorJiayin Pang
2018
Source PublicationNEW PHYTOLOGIST
ISSN0028-646X
EISSN1469-8137
Volume219Issue:2Pages:518-529
SubtypeArticle
Contribution Rank4
AbstractRoot foraging and root physiology such as exudation of carboxylates into the rhizosphere are important strategies for plant phosphorus (P) acquisition. We used 100 chickpea (Cicer arietinum) genotypes with diverse genetic backgrounds to study the relative roles of root morphology and physiology in P acquisition. Plants were grown in pots in a low-P sterilized river sand supplied with 10 mu g P g(-1) soil as FePO4, a poorly soluble form of P. There was a large genotypic variation in root morphology (total root length, root surface area, mean root diameter, specific root length and root hair length), and root physiology (rhizosheath pH, carboxylates and acid phosphatase activity). Shoot P content was correlated with total root length, root surface area and total carboxylates per plant, particularly malonate. A positive correlation was found between mature leaf manganese (Mn) concentration and carboxylate amount in rhizosheath relative to root DW. This is the first study to demonstrate that the mature leaf Mn concentration can be used as an easily measurable proxy for the assessment of belowground carboxylate-releasing processes in a range of chickpea genotypes grown under low-P, and therefore offers an important breeding trait, with potential application in other crops.
Keywordcarboxylates Cicer arietinum leaf manganese malonate pH in rhizosheath soil phosphorus acquisition root hair length total root length
DOI10.1111/nph.15200
Indexed BySCI
Language英语
Quartile1区
TOP
WOS IDWOS:000435948500009
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23414
Collection山地表生过程与生态调控重点实验室
Affiliation1.The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6001, Australia;
2.UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6001, Australia;
3.Division of Germplasm Evaluation, ICAR-National Bureau of Plant Genetic Resources, New Delhi 110012, India;
4.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
5.Institut Polytechnique UniLaSalle, Beauvais Cedex 60000, France;
6.School of Biological Sciences, The University of Western Australia, Perth, WA 6001, Australia
Recommended Citation
GB/T 7714
Jiayin Pang,Ruchi Bansal,Hongxia Zhao,et al. The carboxylate-releasing phosphorus-mobilizing strategy can be proxied by foliar manganese concentration in a large set of chickpea germplasm under low phosphorus supply[J]. NEW PHYTOLOGIST,2018,219(2):518-529.
APA Jiayin Pang.,Ruchi Bansal.,Hongxia Zhao.,Emilien Bohuon.,Hans Lambers.,...&Kadambot H. M. Siddique.(2018).The carboxylate-releasing phosphorus-mobilizing strategy can be proxied by foliar manganese concentration in a large set of chickpea germplasm under low phosphorus supply.NEW PHYTOLOGIST,219(2),518-529.
MLA Jiayin Pang,et al."The carboxylate-releasing phosphorus-mobilizing strategy can be proxied by foliar manganese concentration in a large set of chickpea germplasm under low phosphorus supply".NEW PHYTOLOGIST 219.2(2018):518-529.
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