Book of Abstracts (PDF) - International Mycological Association

IMC7 Main Congress Theme I: BIODIVERSITY AND CONSERVATION Posters
three plateaus ranging from 7000 to 7500 ft. Although each
plateau is subject to the same climatic conditions and at
very similar elevations, the vegetation of each plateau is
drastically different. Snowmelt conditions and substrate
appear to be major factors affecting the species of lichens
found at each location. Analyses include lichen species
richness, abundance, frequency, and the association of
macrolichens with plant communities. Data was analyzed
using PC-ORD and CANOCO. An inventory of lichens
was also conducted at Camp Muir (10,000ft) to determine
rare and sensitive lichen species found at this elevation.
Highly subject to disturbance, this is the base camp for
climbers hiking to the summit of Mount Rainier. A list of
rare lichens collected will be presented.
505 - Contribution to the knowledge of diversity and
distribution of ascomycetes from Mexico
M.C. Gonzalez 1* , R.T. Hanlin 2 , M. Ulloa 1 & E. Aguirre 1
1 Departamento Botanica Instituto de Biologia, UNAM I,
Mexico City DF 04510, Mexico. - 2 Department of Plant
Pathology, University of Georgia, Athens Georgia 30602-
7274, U.S.A. - E-mail: mcgv@ibiologia.unam.mx
Diversity surveys of Mexican Ascomycetes from terrestrial
or aquatic environments are limited mostly by a lack of
necessary resources for mycological biodiversity studies.
However, currently in Mexico there is interest in
biodiversity issues, especially in relation to the
conservation of our natural resources. The importance of
biodiversity in this country is well recognised, and there is
a long history of Botanical, Mycological and Zoological
research which still continues to the present day. The
current study aims to assess the diversity of Ascomycetes
from Mexico. The numbers of Mexican Ascomycetes
recorded from the literature in relation to global estimates
of fungal diversity are also addressed in this work. The
Pezizales and Xylariales are the best studied groups,
probably because they are among the largest Ascomycetes
and therefore more easily collected. The most explored
areas in the country are the State of Veracruz and the State
of Mexico, both located in the central-southeast region of
the country. The least studied areas are the State of Nayarit,
the State of Aguascalientes, and the Peninsula of Baja
California.
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Book of Abstracts
506 - Biodiversity of keratinophyles in Indian hills
(Shimla, H.P.) and Plain (Agra, U.P) and perforator
nature of dermatophytes in relation to taxonomy
N. Govil * & J.N Shrivastava
Dayalbagh Educational Institute, Microbiology lab, Deptt
of Botany, faculty of Science, Dayalbagh Educational
Institute, Dayalbagh, AGRA, India. - E-mail:
nidhi_dei@yahoo.com
A comparative biodiversity of keratinophyles reveals that
hilly area was rich in both species content and relative
diversity as showing 100% prevalence of keratinophyles
where as plains shows 80% prevalence as these areas differ
markedly in prevailing environmental conditions. The
percentage prevalence of Chrysosporium indicum (26%)
and Microsporum fulvum (26%) was maximum indicating
its dominance in hilly area. In plains Trichophyton equinum
(20%) and T. rubrum (20%) was dominant. Out of seven
genera of keratinophyles three isolated genera of
dermatophytes were subjected for their ability to perforate
hair in vitro considering only their superficial pigmented
characteristics. Fourteen isolates belonging to three genera
of Microsporum, Trichophyton and Epidermophyton were
found to have wide range of flexibility in pathogenecity
evaluating that they can be distinguished on the basis of
their perforating nature without identification. M. fulvum
was found to be best perforator releasing maximum protein
(5.98 µg/ml). Among the six strains of M. baullardii strain
6 was found to be non-perforator indicating their nonpathogenic
nature although similar in microscopic and
macroscopic morphology with other strains. So it can be
considered as atypical strain and can achieve a nascent
taxonomic status. The taxonomic status of all the fourteen
isolates of three genera and seven species was studied with
respect to their morphology.
507 - Screening of keratinophyles isolated from Indian
hill (Shimla, H.P.): A biotechnological approach
N. Govil * & J.N. Shrivastava
Dayalbagh Educational Institute, Microbiology lab, Deptt
of Botany, Faculty of Science, Dayalbagh Educational
Institute, Dayalbagh, AGRA, India. - E-mail:
nidhi_dei@yahoo.com
Eighteen keratinophilic species was isolated from Indian
hills (Shimla, H.P.) belonging to seven genera
Chrysosporium, Microsporum, Trichophyton,
Epidermophyton, Emmonsia, Geomyces and Zymonema
were screened for their ability to degrade keratin (feather)
in vitro. All test fungi was found positive for producing
keratinase enzyme, total protein and sulphur containing
amino acids on keratin degradation. G. pannorum and M.
fulvum produced maximum keratinase (20.5 Ku/ml and
14.2 Ku/ml respectively, protein (6.42 µg/ml and 5.84
µg/ml respectively) indicating the biotechnological
importance of their pathogenic nature.