Can arbuscular mycorrhizal fungi improve grain yield, As uptake and tolerance of rice grown under aerobic conditions?
| Autor: | Shengchun Wu, Xunwen Chen, Fu Yong Wu, Ming Hung Wong, Zhihong Ye, Hui Li, W. F. Chan |
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| Rok vydání: | 2010 |
| Předmět: |
Oryza sativa
Chemistry Inoculation Health Toxicology and Mutagenesis Phosphorus chemistry.chemical_element Agriculture Oryza General Medicine Upland rice Straw Toxicology Pollution Soil contamination Adaptation Physiological Aerobiosis Arsenic Soil Symbiosis Agronomy Mycorrhizae Soil Pollutants Soil microbiology Soil Microbiology |
| Zdroj: | Environmental pollution (Barking, Essex : 1987). 159(10) |
| ISSN: | 1873-6424 |
| Popis: | The effects of arbuscular mycorrhizal fungi (AMF) -Glomus intraradices and G. geosporum on arsenic (As) and phosphorus (P) uptake by lowland (Guangyinzhan) and upland rice (Handao 502) were investigated in soil, spiked with and without 60 mg As kg(-1). In As-contaminated soil, Guangyinzhan inoculated with G. intraradices or Handao 502 inoculated with G. geosporum enhanced As tolerance, grain P content, grain yield. However, Guangyinzhan inoculated with G. geosporum or Handao 502 inoculated with G. intraradices decreased grain P content, grain yield and the molar ratio of grain P/As content, and increased the As concentration and the ratio of grain/straw As concentration. These results show that rice/AMF combinations had significant (p < 0.05) effects on grain As concentration, grain yield and grain P uptake. The variation in the transfer and uptake of As and P reflected strong functional diversity in AM (arbuscular mycorrhizal) symbioses. |
| Databáze: | OpenAIRE |
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