International Journal of Life science and Pharma Reviews (IJLPR)  
   
 
International Journal of Life science and Pharma Research (IJLPR)
Life Science
Volume 4 Issue 1, January - March 2014    Pages:1-10
OCCURRENCE OF MYCORRHIZAE IN SOME SPECIES OF CAREX (CYPERACEAE) OF THE DARJEELING HIMALAYAS, INDIA

ASOK GHOSH,SHEKHAR BHUJEL AND GAUR GOPAL MAITI
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DOI: DOI not available
Abstract:
The Cyperaceae (sedge family) have generally been considered non-mycorrhizal, although recent evidences suggest that mycotrophy may be considerably more widespread among sedges than was previously realized. In this study, 28 in situ populations of 12 species of Carex L.(C. myosurus Nees, C. composita Boott, C. cruciata Wahl., C. filicina Nees, C. inanis Kunth, C. setigera D. Don, C. insignis Boott, C. finitima var. finitima; C. fusiformis Nees subsp. finitima (Boott) Noltie, C. teres Boott, C. longipes D. Don ex Tilloch and Taylor, C. nubigena D. Don ex Tilloch and Taylor and C. rochebrunii subsp. rochebrunii; C. remota Linnaeus subsp. rochebrunii (Franchet and Savatier) K√ľkenthal) occurring in the Darjeeling Himalayas were surveyed. Mycorrhizal infection by VAM (Vesicular Arbuscular Mycorrhiza) fungi was found in roots of 9 species (C. myosurus, C. composita, C. cruciata, C. filicina, C. inanis, C. setigera, C. finitima, C. teres, and C. nubigena) and appears to occur in response to many factors, both environmental and phylogenetic. In non-mycorrhizal species, a novel root character, the presence of bulbous-based root hairs, was identified.
Keywords: Carex,Cyperaceae,vesicular arbuscular mycorrhiza (VAM),mycotrophy,root hairs
 
 
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