ISSN:
1432-1890
Keywords:
Key words Glomus intraradices
;
Rosa hybrida
;
Stomatal behavior
;
Vesicular-arbuscular mycorrhiza
;
Vigna unguiculata
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Vesicular-arbuscular mycorrhizal (VAM) colonization can alter transpiration of host leaves, but scientists remain unclear about the mechanisms involved. We tested whether intact root systems were required to observe effects of root colonization by Glomus intraradices on leaf transpiration, or whether some VAM influence resided in leaves even after they were detached from root systems. We measured the transpiration of detached leaves of VAM and nonmycorrhizal plants exposed to different levels of several substances known to influence stomata locally or act in whole-plant regulation of transpiration: abscisic acid, calcium, phosphorus, and hydrogen ions. In rose, some VAM influence on transpiration resided in leaves, even after they had been separated from their root systems. However, removing leaves from their root systems eliminated the VAM influence on stomatal behavior of cowpeas.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s005720050218
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