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| Registros recuperados: 11 | |
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| Gao,Li. |
| Biomass yields and sporulation of Beauveria bassiana was concerned on culture conditions, environmental factors and cultivation method. We optimized the best culture conditions for biomass yields of B. bassiana IBC1201 with the novel "two-stage" cultivation method as well as orthogonal matrix method. Firstly, we cultured spore suspension on the basal medium (sucrose 19.00 g, soy peptone 4.06 g, K2HPO4 1.00 g, KCl 0.50 g, MgSO4 0.50 g, FeSO4 0.10 g and 17.00 g Bactor) for the first stage culture of 4 days under room condition. Then, we transferred them to another defined medium (Cellobiose 9.52 g, urea 1.70 g, ZnSO47H2O 0.05 g/L, MnSO4H2O 0.005 g/L, CaCl2 1.00 g/L, CuSO45H2O 0.05 g/L and 17.00 g Bactor) for more 4 days cultivation with the environmental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutrition; Environment; Biomass; Sporulation; Beauveria bassiana. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400045 |
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| Mukhtar,Hamid; Ikram-ul-Haq,. |
| We describe the simultaneous production of Bacillus subtilis based proteases and alpha amylase using a computer controlled laboratory scale 7.5 L batch bioreactor. The present strain is the first to be reported that concomitantly produces these two industrially important enzymes. The growth and sporulation of Bacillus subtilis was monitored and maximum production of alkaline protease and alpha amylase was found to coincide with maximum sporulation. Two types of proteases were detected in the fermentation broth; a neutral and an alkaline protease most active in a pH range of 7.0-8.0 and 8.0-10, respectively. Maximum production of proteases was observed at an incubation temperature of 37ºC while that of alpha amylase was observed at 40ºC. The optimum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Simultaneous; Sporulation; Kinetics; Fermentation; Agitation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300033 |
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| Mello,Alexandre Furtado Silveira; Machado,Andressa Cristina Zamboni; Bedendo,Ivan Paulo. |
| Control of anthracnose in green pepper involves the use of resistant varieties and/or fungicides. The selection of varieties and efficient products demands great amounts of conidia as inoculum. It is thus necessary to optimize the production of Colletotrichum gloeosporioides conidia in the laboratory, establishing the best conditions for fungus development. The present study aimed at determining the most favorable culture media, temperature, and light conditions for the production of fungus inoculum. The fungus was isolated from green pepper fruits (Capsicum annuum L.) and transferred to four culture media (PDA, oat, filtered pepper extract, and autoclaved pepper extract), under different temperatures (15, 20, 25, 30, and 35ºC) and light conditions (24h... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Anthracnose; Mycelium growth; Sporulation. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500013 |
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| Ben Said, R.; Aouini, H.; Romdhane, M .S.; M'Rabet, R.. |
| L’étude de l’émission de carpospores de deux espèces de gracilaires : Gracilaria gracilis et de Gracilaria bursa-pastoris a été réalisée sur des fragments de thalle femelle à cystocarpes. Ces fragments ont été prélevés à différents niveaux de la plante mère (apex, parties intermédiaires et basales) reflétant un degré plus ou moins avancé de l’âge de la plante femelle à cystocarpes. Les différents fragments ont été exposés à des stress hydriques, thermiques et lumineux (intensité lumineuse et photopériode).Les résultats globaux ont montré que le nombre de carpospores émises sous une photopériode (12/12) est généralement supérieur à celui enregistré sous une plus courte photopériode (8/16), quelle que soit l’intensité lumineuse et la partie du thalle dont... |
| Tipo: Journal Contribution |
Palavras-chave: Sporulation; Gracilaria. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4742 |
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| Zafra,German; Absalón,Angel E.; Cortés-Espinosa,Diana V.. |
| In this study, we evaluated the effect of low and high molecular weight polycyclic aromatic hydrocarbons (PAHs), i.e., Phenanthrene, Pyrene and Benzo[a]pyrene, on the radial growth and morphology of the PAH-degrading fungal strains Aspergillus nomius H7 and Trichoderma asperellum H15. The presence of PAHs in solid medium produced significant detrimental effects on the radial growth of A. nomius H7 at 4,000 and 6,000 mg L−1 and changes in mycelium pigmentation, abundance and sporulation ability at 1,000–6,000 mg L−1. In contrast, the radial growth of T. asperellum H15 was not affected at any of the doses tested, although sporulation was observed only up to 4,000 mg L−1 and as with the H7 strain, some visible changes in sporulation patterns and mycelium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polycyclic aromatic hydrocarbons (PAHs); Bioremediation; Radial growth; Sporulation; Fungal physiology. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300937 |
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| Zhu,Yanping; Pan,Jieru; Qiu,Junzhi; Guan,Xiong. |
| 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 > Ca2+ > soluble starch > 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 > V B1 > Fe2+ > tryptone. Under the optimal culture conditions,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Entomogenous fungus; Orthogonal matrix method; Mycelial growth; Sporulation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400032 |
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| Registros recuperados: 11 | |
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