Record ID No. |
3532 |
Author(s) |
Wu, Q.-S., He, X.-H., Zou, Y.-N., He, K.-P., Sun, Y.-H., Cao, M.-Q. , 2012 |
Affiliation |
College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei 434025, China, Email: wuqiangsh@163.com |
Title |
Spatial distribution of glomalin-related soil protein and its relationships with root mycorrhization, soil aggregates, carbohydrates, activity of protease and β-glucosidase in the rhizosphere of Citrus unshiu |
Source. Vol.(no):Page |
Soil Biology and Biochemistry, 45(Feb 2012): 181-183p. |
Categories |
Mycorrhiza General |
Subjects |
Biochemistry |
Sub-subjects |
Carbohydrate metabolism |
Host |
Citrus unshiu |
Organism |
Mycorrhiza |
Country |
China, Asia |
Abstracts |
Relationships between the spatial distributions of glomalin-related soil protein (GRSP) and soil aggregates, carbohydrates or relevant enzymes are poorly studied. We found that two categories of GRSP, the easily extractable Bradford-reactive soil protein (EE-BRSP) and total BRSP (T-BRSP), respectively ranged between 0.3-0.6 and 0.5-0.8. mg/g DW soil, and these two BRSPs decreased with the increase of soil depth (0-40. cm) in the rhizosphere of a 22-year-old Citrus unshiu orchard. Both EE-BRSP and T-BRSP were significantly positively correlated with mycorrhization, 0.25-0.50. mm soil water-stable aggregates, water-extractable or hydrolyzable carbohydrates, and β-glucosidase, but significantly negatively correlated with protease. Our results demonstrate that the spatial distribution of GRSP is significantly affected by mycorrhization, soil carbohydrate, β-glucosidase and protease. |