Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China
Phosphorus (P) deficiency significantly affects crop productivity, especially legume crops. Therefore, it is important to understand the P-acquisition strategies of different leguminous crops. In this study, we undertook a pot experiment with 11 legume crops (soybean, faba bean, pea, cowpea, common...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2023-10-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-202310-0003_legume-crops-use-a-phosphorus-mobilising-strategy-to-adapt-to-low-plant-available-phosphorus-in-acidic-soil-in.php |
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| author | Mei Chen Xin Luo Long Jiang Rui Dong K.H.M. Siddique Jin He |
| author_facet | Mei Chen Xin Luo Long Jiang Rui Dong K.H.M. Siddique Jin He |
| author_sort | Mei Chen |
| collection | DOAJ |
| description | Phosphorus (P) deficiency significantly affects crop productivity, especially legume crops. Therefore, it is important to understand the P-acquisition strategies of different leguminous crops. In this study, we undertook a pot experiment with 11 legume crops (soybean, faba bean, pea, cowpea, common bean, lentil, adzuki bean, chickpea, grass pea, red kidney bean and common vetch) to investigate P-acquisition strategies related to root morphology, organic acid and acid phosphatase exudations, and arbuscular mycorrhizal fungi (AMF) colonisation under low (4.4 mg/kg) and optimal (40 mg/kg) P conditions. The results revealed that P deficiency significantly decreased biomass and P accumulation, root length (10.5%), and root surface area (7.9%), increased organic acid exudation (80.2%) and acid phosphatase activity (16.8%), and did not affect root diameter or root AMF colonisation rate. Principal component analysis revealed a positive correlation between organic acid exudation and acid phosphatase activity, while root length and root surface area negatively correlated with organic acid exudation, acid phosphatase activity and root AMF colonisation rate. P accumulation positively correlated with root length, surface area, and diameter but negatively correlated with organic acid exudation, acid phosphatase activity, and AMF colonisation rate. These findings confirmed the following: (1) legume crops use a P-mobilisation strategy related to organic acid exudation and acid phosphatase activity to acquire P under low soil P conditions; (2) organic acid exudation coincided with acid phosphatase activity to mobilise soil inorganic and organic P, improving P accumulation; (3) a trade-off exists between the P-scavenging strategy related to root morphology traits and mobilisation strategy. |
| first_indexed | 2024-03-08T09:26:53Z |
| format | Article |
| id | doaj.art-5f2edb7ee0b74e38ba67d2de1cc91390 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-03-08T09:26:53Z |
| publishDate | 2023-10-01 |
| publisher | Czech Academy of Agricultural Sciences |
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| series | Plant, Soil and Environment |
| spelling | doaj.art-5f2edb7ee0b74e38ba67d2de1cc913902024-01-31T08:18:05ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682023-10-01691047147910.17221/254/2023-PSEpse-202310-0003Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest ChinaMei Chen0Xin Luo1Long Jiang2Rui Dong3K.H.M. Siddique4Jin He5College of Life Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou Province, Guiyang, P.R. ChinaCollege of Agriculture, Guizhou University, Guizhou Province, Guiyang, P.R. ChinaCollege of Life Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou Province, Guiyang, P.R. ChinaCollege of Zoology, Guizhou University, Guizhou Province, Guiyang, P.R. ChinaThe UWA Institute of Agriculture, The University of Western Australia, Perth, AustraliaCollege of Life Sciences, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou Province, Guiyang, P.R. ChinaPhosphorus (P) deficiency significantly affects crop productivity, especially legume crops. Therefore, it is important to understand the P-acquisition strategies of different leguminous crops. In this study, we undertook a pot experiment with 11 legume crops (soybean, faba bean, pea, cowpea, common bean, lentil, adzuki bean, chickpea, grass pea, red kidney bean and common vetch) to investigate P-acquisition strategies related to root morphology, organic acid and acid phosphatase exudations, and arbuscular mycorrhizal fungi (AMF) colonisation under low (4.4 mg/kg) and optimal (40 mg/kg) P conditions. The results revealed that P deficiency significantly decreased biomass and P accumulation, root length (10.5%), and root surface area (7.9%), increased organic acid exudation (80.2%) and acid phosphatase activity (16.8%), and did not affect root diameter or root AMF colonisation rate. Principal component analysis revealed a positive correlation between organic acid exudation and acid phosphatase activity, while root length and root surface area negatively correlated with organic acid exudation, acid phosphatase activity and root AMF colonisation rate. P accumulation positively correlated with root length, surface area, and diameter but negatively correlated with organic acid exudation, acid phosphatase activity, and AMF colonisation rate. These findings confirmed the following: (1) legume crops use a P-mobilisation strategy related to organic acid exudation and acid phosphatase activity to acquire P under low soil P conditions; (2) organic acid exudation coincided with acid phosphatase activity to mobilise soil inorganic and organic P, improving P accumulation; (3) a trade-off exists between the P-scavenging strategy related to root morphology traits and mobilisation strategy.https://pse.agriculturejournals.cz/artkey/pse-202310-0003_legume-crops-use-a-phosphorus-mobilising-strategy-to-adapt-to-low-plant-available-phosphorus-in-acidic-soil-in.phpphosphorus deficiencymacronutrientadaptabilityroot exudatesarbuscular mycorrhizal symbiosis |
| spellingShingle | Mei Chen Xin Luo Long Jiang Rui Dong K.H.M. Siddique Jin He Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China Plant, Soil and Environment phosphorus deficiency macronutrient adaptability root exudates arbuscular mycorrhizal symbiosis |
| title | Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China |
| title_full | Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China |
| title_fullStr | Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China |
| title_full_unstemmed | Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China |
| title_short | Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China |
| title_sort | legume crops use a phosphorus mobilising strategy to adapt to low plant available phosphorus in acidic soil in southwest china |
| topic | phosphorus deficiency macronutrient adaptability root exudates arbuscular mycorrhizal symbiosis |
| url | https://pse.agriculturejournals.cz/artkey/pse-202310-0003_legume-crops-use-a-phosphorus-mobilising-strategy-to-adapt-to-low-plant-available-phosphorus-in-acidic-soil-in.php |
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