Data/hora: 10/06/2024 18:06:28

Provedor de dados: | 58
País: | Brazil
Título: | Optimization of nutritional requirements for mycelial growth and sporulation of entomogenous fungus Aschersonia aleyrodis Webber
Autores: | Zhu,Yanping; Pan,Jieru; Qiu,Junzhi; Guan,Xiong.
Data: | 2008-12-01
Ano: | 2008
Palavras-chave: | Entomogenous fungus; Orthogonal matrix method; Mycelial growth; Sporulation.
Resumo: | The objective of the present study was to investigate the optimal nutritional requirements for mycelial growth and sporulation of entomopathogenic fungus Aschersonia aleyrodis Webber by orthogonal layout methods. Herein the order of effects of nutrient components on mycelial growth was tryptone &gt; Ca2+ &gt; soluble starch &gt; folacin, corresponding to the following optimal concentrations: 1.58% Soluble Starch, 3.16% Tryptone, 0.2 mmol l-1 Ca2+ and 0.005% Folacin. The optimal concentration of each factors for sporulation was 1.16% lactose, 0.394% tryptone, 0.4 mmol l-1 Fe2+ and 0.00125% V B1, and the effects of medium components on sporulation were found to be in the order lactose &gt; V B1 &gt; Fe2+ &gt; tryptone. Under the optimal culture conditions, the maximum production of mycelial growth achieved 20.05 g l-1 after 7 days of fermentation, while the maximum spore yield reached 5.23 ×10(10) spores l-1 after 22 days of cultivation. This is the first report on optimization of nutritional requirements and design of simplified semi-synthetic media for mycelial growth and sporulation of A. aleyrodis.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400032
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822008000400032
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.39 n.4 2008
Fonte: | info:eu-repo/semantics/openAccess