Abstract
Ectomycorrhizal fungi have been shown to improve on the phosphorus nutrition of their plant partners and acid phosphatase activities are thought to be important in the uptake process. The effect of nitrogen source and presence/absence of phosphorus in the experimental medium on acid phosphatase activity of Scleroderma sinnamariense, an ectomycorrhizal fungus associated with Gnetum spp.in Cameroon, was determined in comparison to Pisolithus tinctorius. The effect of internal mycelial phosphorus status of the inoculum on acid phosphatase activity was also studied. Results show that the absence of phosphorus in the assay medium stimulated cell bound acid phosphatase activity. Extracellular phosphatase activity was less than cell bound activity by a factor of 100. Key words: Acid phosphatase, cell-bound activity, Scleroderma sinnamariense, ectomycorrhizal fungus.
Highlights
Some ectomycorrhizal (EM) fungi have the potential to mobilise P from organic polymers (Read and PerezMoreno, 2003)
Ectomycorrhizal fungi have been shown to improve on the phosphorus nutrition of their plant partners and acid phosphatase activities are thought to be important in the uptake process
The effect of nitrogen source and presence/absence of phosphorus in the experimental medium on acid phosphatase activity of Scleroderma sinnamariense, an ectomycorrhizal fungus associated with Gnetum spp.in Cameroon, was determined in comparison to Pisolithus tinctorius
Summary
Some ectomycorrhizal (EM) fungi have the potential to mobilise P from organic polymers (Read and PerezMoreno, 2003). Sharma et al (2010), went further to illustrate the fact that mycelial growth and the ability of this fungus to produce acid phosphatase was affected by external factors such as pH, temperature, nitrogen, carbon and P sources of the assay medium These external factors are believed to influence the efficiency of the EM fungi in supplying its host plant with vital nutrients such as N and P. Several studies have reported the acid phosphatase activity of genera such as Amanita, Suillus, Paxillus, etc (Antibus et al, 1986; Cullings et al, 2008; Kieliszewska-Rokicka, 1992) Most of these studies were carried out on temperate species. More of such studies are needed on tropical species so as to get a full understanding of the role of these enzymes in EM functioning in tropical forest ecosystems
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
