Record ID No. |
204 |
Author(s) |
Lovelock C. E., Wright S. F. , Nichols K. A. , 2004 |
Affiliation |
Smithsonian Environmental Research Center, POB 28, Edgewater, MD 21037 |
Title |
Using glomalin as an indicator for arbuscular mycorrhizal hyphal growth: an example from a tropical rain forest soil |
Source. Vol.(no):Page |
Soil Biology & Biochemistry. 36(6):1009-1012 p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Methodology |
Host |
Tropical forest |
Organism |
n.a. |
Country |
U.S.A., North America |
Abstracts |
Glomalin concentrations of extra-radical arbuscular mycorrhizal (AM) hyphae were estimated by deploying hyphal in-growth cores ;containing glomalin-free sand in field soils in a tropical forest and in pot cultures. In field soils, glomalin was 0.044 +/- 0.013 mug m(-1) hyphae. In pot cultures glomalin concentrations were lower (range 0.0068-0.036 mug m(-1)), and varied significantly among species. Using this technique, preliminary estimates of extraradical AM hyphal production on Inceptisols were 1.91 Mg ha(-1) yr(-1) and on Oxisol were 1.47 Mg ha(-1) yr(-1), but they could range between 0.9-5.7 Mg ha(-1) yr(-1). These rates of hyphal production are approximately 10% (range 5-33%) of estimated above ground primary production of the forest. |