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| 春小麦和苜蓿根际溶磷菌筛选及其溶磷能力测定 | |
| 引用本文： | 冯瑞章,冯月红,姚拓,龙瑞军,康爱明.春小麦和苜蓿根际溶磷菌筛选及其溶磷能力测定[J].甘肃农业大学学报,2005,40(5):604-608. |
| 作者姓名： | 冯瑞章 冯月红 姚拓 龙瑞军 康爱明 |
| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070 2. 甘肃农业大学草业学院,甘肃,兰州,730070;兰州大学干旱与草地生态教育部重点实验室,甘肃,兰州,730000 3. 甘肃农业大学草业学院,甘肃,兰州,730070;中国科学院西北高原生物研究所,青海,西宁,810008 4. 兰州市畜牧兽医研究所,甘肃,兰州,730050 |
| 基金项目： | 国家科技公关计划项目(2002BA901A29)，甘肃省科学技术攻关项目(2GS035-A41-001-04)，中国博士后科学基金(200403517)，教育部高等学校优秀青年教师教学科研奖励基金 |
| 摘 要： | 对春小麦(Triticum aestivum)和苜蓿(Medicago sativa)根际和非根际土壤中溶磷菌进行分离得到溶磷菌株368株,小麦和苜蓿根际溶磷菌数量分布为:根际土(RS)>远离根际土(NRS)>根表(RP)>根内(HP)。利用溶磷圈法初步筛选出66株具有较高溶磷能力的菌株,经钼蓝比色法测定其溶磷量,获得12株溶磷量大于100 mg/L的高效溶磷菌,且发现溶磷能力与pH值没有显著相关性。 |
| 关 键 词： | 溶磷菌 溶磷能力 pH值 春小麦 苜蓿 根际 |
| 文章编号： | 1003-4315（2005）05-0604-05 |
| 收稿时间： | 2005-06-18 |
| 修稿时间： | 2005-06-18 |
The screening of phosphobacteria and solubilizing phosphate ability in the rhizosphere of alfalfa and wheat |
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| FENG Rui-zhang,FENG Yue-hong,YAO Tuo,LONG Rui-jun,KANG Ai-ming.The screening of phosphobacteria and solubilizing phosphate ability in the rhizosphere of alfalfa and wheat[J].Journal of Gansu Agricultural University,2005,40(5):604-608. | |
| Authors: | FENG Rui-zhang FENG Yue-hong YAO Tuo LONG Rui-jun KANG Ai-ming |
| Institution: | 1. Faculty of Grassland Science, Gansu Agricultural University,Gansu,Lanzhou 730070; 2. Northwest Institute of Plateau Biology, Chinese Academy of Seienees,Qinghai,Xining 810008; 3. Key Laboratory of Arid and Grassland Ecology, Ministry of Education, Lanzhou University,Gansu,Lanzhou 730000; 4. Institute of Animal Husbandry and Veterinary of Lanzhou,Gansu,Lanzhou 730050,China |
| Abstract: | In this paper,368 phosphobacteria strains from rhizosphere of wheat and alfalfa were isolated and the distribution in different section presented as: soil adhering to roots(RS)>soil away from roots(NRS)>rhizoplan of roots(RP)>histoplan(HP).66 strains with higher ability of dissolving phosphorus were identified by means of phosphorus hole.Moreover,12 strains with higher capacity of dissolving phosphorus than 100 mg/L in broth assay were screened.The relationship between pH and phosphorus solubizition were also discussed and there were no close relationship between the ability of phosphorus solubilization and pH. |
| Keywords: | phosphobacteria capacity of dissolving phosphorus pH Triticum aestivum Medicago sativa rhizosphere |
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