Record ID No. |
1910 |
Author(s) |
Chen Y., Yuan J.G., Yang Z.Y., Xin G.R., Fan L , 2008 |
Affiliation |
Natl Sun Yat Sen Univ, State Key Lab Biocontrol, Ghangzhou 510275, PEOPLES R CHINA |
Title |
Associations between arbuscular mycorrhizal fungi and Rhynchrelyrum repens in abandoned quarries in southern China |
Source. Vol.(no):Page |
Plant and Soil.304(1-2):257-266p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
PEOPLES R CHINA, Asia |
Abstracts |
The association between arbuscular mycorrhizal fungi (AMF) and Rhynchrelyrum
repens was investigated. In six abandoned quarries in the Pearl River Delta area, R. Repens was
found to be associated with nine AMF species, including Glomus versiforme, G. Brohultii, G.
Microaggregatum, G. Clarum and G. Claroideum, Acaulospora delicata, A. Mellea, A. Mollowae and
Entrophospora infrequens. The genus Glomus and the species G. Brohultii were recorded at the
highest frequencies. Three typical arbuscular mycorrhizal (AM) structures, i.e. Hyphae, vesicles
and arbuscules, were found in the roots of the R. Repens specimens collected from all the
quarries investigated. Vesicles were the most frequently recorded structure. Results of a
container-based experiment showed that R. Repens had very high mortality (83.3%) in the absence
of AMF in soil containing sufficient P (phosphorus); this indicates that R. Repens is an obligate
mycotroph. The presence of AMF significantly increased the biomass accumulation of R. Repens
seedlings (p < 0.01). It was also observed that AMF colonization was related to soil P and K
(potassium) utilization by R. Repens seedlings. It is, therefore, important to inoculate with AMF
when using R. Repens for the restoration of damaged ecosystems. |