Osmotic adjustment in the mycelial ascomyceteNeocosmospora vasinfecta (E. F. Smith) |
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| Institution: | 1. Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bld. 2, Leninsky Ave., Moscow, 119071, Russian Federation;2. Department of Mycology and Algology, Faculty of Biology, Lomonosov Moscow State University, 1, Bld. 12, Leninskie Gory, Moscow, 119234, Russian Federation;3. Gause Institute of New Antibiotics, 11, Bolshaya Pirogovskaya Str., Moscow, 119021, Russian Federation;4. Department of Chemistry and Technology of Biologically Active Compounds Named After N.A. Preobrazhensky, Institute of Fine Chemical Technologies, MIREA - Russian Technological University, 78 Vernadsky Avenue, Moscow, 119454, Russian Federation;1. Universidade Brasil, São Paulo, SP, 08230-030, Brazil;2. Instituto de Investigaciones Bioquímicas de La Plata (CONICET CCT La Plata-UNLP), Universidad Nacional de La Plata, La Plata, 1900, Argentina;3. Centro de Ciência do Sistema Terrestre, Instituto Nacional de Pesquisa Espaciais - INPE, São José dos Campos, SP, 12227-010, Brazil;4. Department of Biology, Utah State University, Logan, UT, 84322-5305, USA;5. Universidade Tecnológica Federal do Paraná (UTFPR), 85660-000, Dois Vizinhos, PR, Brazil;1. Mund-Lagowski Department of Chemistry and Biochemistry, Bradley University, 1501 West Bradley Avenue, Peoria, IL, 61625, USA;2. USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit, 1815 N University St., Peoria, IL, 61604, USA |
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| Abstract: | Osmotic adjustment in the ascomyceteNeocosmospora vasinfecta was investigated by determining intramycelial water, mycelial solutes, and total mycelial osmolality. Major organic and inorganic solutes as well as proline and glycine betaine were determined under conditions of osmotic stress and shock, imposed by 0.5M KCl. Comparison to glucose as a nonelectrolytic osmoticum was also made. Results quantitatively implicated the polyhydric alcohols as the osmotic adjusters. Changes in amino acids were due to growth and were not osmoregulatory in nature. The osmoticum was not utilized for osmotic adjustment. The growth ofN. vasinfecta in the presence of KCl indicated that this organism is moderately sensitive to osmotic stress. |
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