Conidial water affinity is an important characteristic for thermotolerance in entomopathogenic fungi

Autor(es)

Souza, Roberta K. F. ^[1] ; Azevedo, Rosana F. F. ^[1] ; Lobo, Anderson O. ^[1] ; Rangel, Drauzio E. N. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Vale Paraiba, Inst Pesquisa & Desenvolvimento, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: BIOCONTROL SCIENCE AND TECHNOLOGY; v. 24, n. 4, p. 448-461, APR 3 2014.
• Citações Web of Science: 8

Resumo

The interspecific thermotolerance of several species of entomopathogenic fungi was evaluated based on the conidial water affinity. The species were divided between hydrophilic and hydrophobic conidia. The species with hydrophobic conidia were Beauveria bassiana (ARSEF 252), Metarhizium brunneum (ARSEF 1187), Metarhizium robertsii (ARSEF 2575), Isaria fumosorosea (ARSEF 3889) and Metarhizium anisopliae s.l. (ARSEF 5749). The species with hydrophilic conidia were Tolypocladium cylindrosporum (ARSEF 3392), Tolypocladium inflatum (ARSEF 4877), Simplicillium lanosoniveum (ARSEF 6430), Lecanicillium aphanocladii (ARSEF 6433), S. lanosoniveum (ARSEF 6651), Aschersonia placenta (ARSEF 7637) and Aschersonia aleyrodis (ARSEF 10276). The conidial surface tension of each isolate was also studied. Conidial suspensions were exposed to 38, 41 or 45 degrees C. After exposure, the suspensions were inoculated on media and conidial germination was evaluated. Considerable differences in thermotolerance were found among the 12 entomopathogenic fungal species. Species with hydrophobic conidia were generally more thermotolerant than species with hydrophilic conidia. All isolates with hydrophobic conidia showed higher conidial surface tension than the isolates with hydrophilic conidia. (AU)

• Processo FAPESP: 12/14702-4 - Indução de alta tolerancia de conídios à radiação UV-B e calor em fungos patógenos de insetos crescidos sob a influência da luz visível
• Beneficiário: Roberta Kelly de Faria Souza
• Modalidade de apoio: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico
• Processo FAPESP: 10/06374-1 - Luz visível durante o crescimento induz aumento de tolerância de conídios a diferentes condições de estresse em fungos
• Beneficiário: Drauzio Eduardo Naretto Rangel
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 11/17877-7 - Desenvolvimento de novos scaffolds poliméricos por eletrofiação com incorporação de nanotubos alinhados e nanohidroxiapatita para regeneração óssea
• Beneficiário: Anderson de Oliveira Lobo
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores