Abstract
Roots of most terrestrial plants form symbiotic associations with fungi. Arbuscular mycorrhizas are widespread and abundant. They are formed by bryophytes, pteridophytes, gymnosperms, and angiosperms and are ubiquitous in most temperate and tropical ecosystems including agricultural systems. Ectomycorrhizas occur in certain families of woody gymnosperms and angiosperms and are extremely important in many temperate and boreal forests. The plant order Ericales contains a natural group of closely related families with worldwide distribution. Except for orchid and monotropoid associations, mycorrhizas involve plant exchange of photosynthates in return for a fungal exchange of mineral nutrients. The convergence of so many unrelated forms of mycorrhizas is a testament for the mutual benefits of these trading partnerships. Mycorrhizal interactions influence the species composition, diversity, and stability of biotic communities. Mycorrhizal fungi co-inhabit the rhizosphere with many saprotrophic and pathogenic fungi. One of the most important functions of mycorrhizas is their role in physically structuring soils. The total effect of roots and associated mycorrhizal fungi on soil structure is related to their turnover and decomposition rates. Aerts suggested that variation in access to different nutrient pools among various types of mycorrhizal fungi leads to positive feedback between the dominant plants in an ecosystem and litter decomposition. The average global temperature has risen since the early 1980s, and it has been predicted that the land surface temperature will increase by 3.1° C by 2085. The analytical challenge of holistic studies of complex interactions among communities of rhizosphere organisms and the environment is daunting.
| Original language | English (US) |
|---|---|
| Title of host publication | The Rhizosphere |
| Publisher | Elsevier Inc. |
| Pages | 73-100 |
| Number of pages | 28 |
| ISBN (Print) | 9780120887750 |
| DOIs | |
| State | Published - 2007 |
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ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
Cite this
Mycorrhizas : Symbiotic Mediators of Rhizosphere and Ecosystem Processes. / Johnson, Nancy; Gehring, Catherine A.
The Rhizosphere. Elsevier Inc., 2007. p. 73-100.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Mycorrhizas
T2 - Symbiotic Mediators of Rhizosphere and Ecosystem Processes
AU - Johnson, Nancy
AU - Gehring, Catherine A
PY - 2007
Y1 - 2007
N2 - Roots of most terrestrial plants form symbiotic associations with fungi. Arbuscular mycorrhizas are widespread and abundant. They are formed by bryophytes, pteridophytes, gymnosperms, and angiosperms and are ubiquitous in most temperate and tropical ecosystems including agricultural systems. Ectomycorrhizas occur in certain families of woody gymnosperms and angiosperms and are extremely important in many temperate and boreal forests. The plant order Ericales contains a natural group of closely related families with worldwide distribution. Except for orchid and monotropoid associations, mycorrhizas involve plant exchange of photosynthates in return for a fungal exchange of mineral nutrients. The convergence of so many unrelated forms of mycorrhizas is a testament for the mutual benefits of these trading partnerships. Mycorrhizal interactions influence the species composition, diversity, and stability of biotic communities. Mycorrhizal fungi co-inhabit the rhizosphere with many saprotrophic and pathogenic fungi. One of the most important functions of mycorrhizas is their role in physically structuring soils. The total effect of roots and associated mycorrhizal fungi on soil structure is related to their turnover and decomposition rates. Aerts suggested that variation in access to different nutrient pools among various types of mycorrhizal fungi leads to positive feedback between the dominant plants in an ecosystem and litter decomposition. The average global temperature has risen since the early 1980s, and it has been predicted that the land surface temperature will increase by 3.1° C by 2085. The analytical challenge of holistic studies of complex interactions among communities of rhizosphere organisms and the environment is daunting.
AB - Roots of most terrestrial plants form symbiotic associations with fungi. Arbuscular mycorrhizas are widespread and abundant. They are formed by bryophytes, pteridophytes, gymnosperms, and angiosperms and are ubiquitous in most temperate and tropical ecosystems including agricultural systems. Ectomycorrhizas occur in certain families of woody gymnosperms and angiosperms and are extremely important in many temperate and boreal forests. The plant order Ericales contains a natural group of closely related families with worldwide distribution. Except for orchid and monotropoid associations, mycorrhizas involve plant exchange of photosynthates in return for a fungal exchange of mineral nutrients. The convergence of so many unrelated forms of mycorrhizas is a testament for the mutual benefits of these trading partnerships. Mycorrhizal interactions influence the species composition, diversity, and stability of biotic communities. Mycorrhizal fungi co-inhabit the rhizosphere with many saprotrophic and pathogenic fungi. One of the most important functions of mycorrhizas is their role in physically structuring soils. The total effect of roots and associated mycorrhizal fungi on soil structure is related to their turnover and decomposition rates. Aerts suggested that variation in access to different nutrient pools among various types of mycorrhizal fungi leads to positive feedback between the dominant plants in an ecosystem and litter decomposition. The average global temperature has risen since the early 1980s, and it has been predicted that the land surface temperature will increase by 3.1° C by 2085. The analytical challenge of holistic studies of complex interactions among communities of rhizosphere organisms and the environment is daunting.
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U2 - 10.1016/B978-012088775-0/50006-9
DO - 10.1016/B978-012088775-0/50006-9
M3 - Chapter
SN - 9780120887750
SP - 73
EP - 100
BT - The Rhizosphere
PB - Elsevier Inc.
ER -