Diversity and host preference of leaf endophytic fungi in the Iwokrama Forest Reserve, Guyana

Endophytic fungi were isolated from living symptomless leaves of 12 tree species from two locations in the Iwokrama Forest Reserve, Guyana. Sixty-four fungal morphotaxa were characterized from 2492 cultures, which were derived from a total of 2520 sample units. Species of Colletotrichum, Nodulispori...

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Bibliographic Details
Published in:Mycologia 2002-03, Vol.94 (2), p.210-220
Main Authors: Cannon, Paul F., Simmons, Coralie M.
Format: Article
Language:English
Subjects:
Camping
Carapa guianensis
catostemma fragrans
cecropia sciadophylla
chlorocardium rodiei
Colletotrichum
Ecology
endophytes
Endosymbionts
eperua falcata
eschweilera sagotiana
forest reserves
forest trees
fungal community
fungal diversity
Fungi
group glabra
host plants
host preference
host preferences
Jacaranda
leaf endophytes
Leaves
manilkara bidentata
Microbial colonization
mora excelsa
Mycology
neotropical mycology
nodulisporium
Pestalotiopsis
Phomopsis
phylogeny
Plants
sclerolobium micropetalum
spatial distribution
Species diversity
swartzia leiocalycina
Trees
tropical forests
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Summary:Endophytic fungi were isolated from living symptomless leaves of 12 tree species from two locations in the Iwokrama Forest Reserve, Guyana. Sixty-four fungal morphotaxa were characterized from 2492 cultures, which were derived from a total of 2520 sample units. Species of Colletotrichum, Nodulisporium, Pestalotiopsis and Phomopsis were most frequently isolated. Colonization was greater in samples from the midrib than in those from laminar tissue, and slightly greater at the tip of the lamina compared with the base of the leaf. In contrast to studies in temperate ecosystems, no distinct fungal communities were identified for individual plant species, suggesting that the degree of host preference is low. The implications for estimation of fungal diversity in tropical systems are explored.
ISSN:0027-5514
1557-2536
DOI:10.1080/15572536.2003.11833226