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Trichoderma longibrachiatum
About: Trichoderma longibrachiatum is a research topic. Over the lifetime, 452 publications have been published within this topic receiving 10591 citations.
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TL;DR: In dual cultures Fusarium lateritium Nees ex Link coiled, penetrated and destroyed young actively growing hyphae of Botrytis cinerea Pers.
Abstract: In dual cultures Fusarium lateritium Nees ex Link coiled, penetrated and destroyed young actively growing hyphae of Botrytis cinerea Pers., Cytospora rubescens Fr., Eutypa armeniacae Hansf. et Carter, Sphaeropsis malorum Peck, Rhizoctonia solani Kuhn, Trichoderma koningii Oud. (Tk-1) and Trichoderma hamatum (Bon.) Bain. (Tha-2), and conidiophores and conidia of Botrytis cinerea Pers. The isolates of Trichoderma koningii Oud. (Tk-3) and Trichoderma pseudokoningii Rifai (Tp-1) parasited and destroyed the hyphae of Fusarium lateritium. There was no hyphal interaction between Fusarium lateritium and an isolate of Trichoderma longibrachiatum Rifai. Hyphal, interactions occurred mostly on the aerial hyphae of test fungi which grew over the inhibition zone formed between the colonies of Fusarium lateritium and the test fungus, and contacted the hyphae of Fusarium lateritium.
Details of dual culture studies are given.
3 citations
TL;DR: The efficiency of the biological control agent Trichoderma spp was tested against Phytophthora parasitica and Fusarium oxysporum in Roselle plants under field and greenhouse conditions, and field results showed that Trichodma longibrachiatum-treated plants had 15% less incidence of black shank.
Abstract: The efficiency of the biological control agent Trichoderma spp was tested against Phytophthora parasitica and Fusarium oxysporum in Roselle plants under field and greenhouse conditions. Under field conditions, three Trichoderma doses were applied to the base of the plant, and azoxystrobin and benomyl were applied at 30 and 60 days after planting. Also, 30 day-old plants were inoculated with 7 g of corncob/Trichoderma under greenhouse conditions, and inoculated with F. oxysporum and P. parasitica 3 or 4 days later. Field results showed that Trichoderma longibrachiatum-treated plants had 15% less incidence of black shank, and in one of the experiments, calyx dry weight was higher. Under greenhouse conditions, plants inoculated with Trichoderma gamsii and T. longibrachiatum had between 20 and 30% less incidence of F. oxysporum and P. parasitica, respectively. Both Trichoderma species increased fresh and dry plant weight, and T. gamsii also increased plant height. In general, T. gamsii and Trichoderma virens increased height, fresh and dry weight of Roselle plants infected with F. oxysporum.
Key words: Trichoderma virens, Trichoderma longibrachiatum, Trichoderma asperellum, Trichoderma gamsii, Roselle.
3 citations
TL;DR: Alternative carbon sources, such as orange peel and trub, exhibit great potential as inducers for the production of β-galactosidase and -fructofuranosidase using abundant and inexpensive agro-industrial substrates.
Abstract: The influence of alternative carbon sources as inducers of i¢-galactosidase and i¢-fructofuranosidase by filamentous fungi (that are, Aspergillus aculeatus, Chrysonilia sitophila, Gliocladium virens, Aspergillus fumigatus and Trichoderma longibrachiatum), recently isolated from Brazil’s Atlantic Forest biome has been investigated. The greatest levels of intracellular β-galactosidase activity were obtained using orange peel waste (56.31 U/mL) with A. aculeatus, rice straw (22.57 U/mL) with G. virens, sorghum straw (16.48 U/mL) with C. sitophila, and passion fruit peel with either A. fumigatus (17.26 U/mL) or T. longibrachiatum (17.53 U/mL). The most effective intracellular i¢-fructofuranosidase activity was obtained by A. aculeatus using trub (409.46 U/mL) or passion fruit peel (44.59 U/mL). Thus, alternative carbon sources, such as orange peel and trub, exhibit great potential as inducers for the production of these enzymes. Such fungal isolates from the Atlantic Forest of Parana, Brazil are promising candidates for generating significant amounts of β-galactosidase and i¢-fructofuranosidase using abundant and inexpensive agro-industrial substrates.
Key words: Agro-industrial residue, Atlantic Forest, lactase, invertase, fungus.
3 citations
DSM1
TL;DR: A digestibility trial on piglets was conducted to study the effect of an enzyme complex derived from Trichoderma longibrachiatum supplemented to a rye-based diet on apparent ileal digestibility of amino acids and NSP-constituting sugars.
3 citations
TL;DR: In this paper, the effect of basic fermentation parameters (substrate, moisture content and fermentation time) on enzyme production was studied using the fungal strains Trichoderma longibrachiatum and Aspergillus terreus for solid state fermentation (SSF).
Abstract: Cellulase production studies have been carried out using the fungal strains Trichoderma longibrachiatum and Aspergillus terreus by using two different lignocellulosic materials for solid state fermentation (SSF). The effect of basic fermentation parameters (substrate, moisture content and the fermentation time) on enzyme production was studied. Maximum cellulase production (FPA and endoglucanase) of Trichoderma longibrachiatum were 33.83 U/gds and 167.4 U/gds, respectively, which represented a 1.75 fold improved activities than that of Aspergillus terreus (21.5 U/gds and 95.82 U/gds, respectively) using wheat bran as substrate. The optimal conditions for cellulase production with wheat bran were found to be: initial moisture content 70% and the optimal incubation time for production was three days. The endoglucanase of Trichoderma longibrachiatum was thermostable and showed a half-life of 1 hour at 70°C, while the filter paper activity (APF) lost its total activity after 1 hour at 70°C. Results indicate the scope for further optimization of the production conditions to obtain higher cellulase titres using the Trichoderma longibrachiatum strain under SSF.
3 citations