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Mycelium
About: Mycelium is a research topic. Over the lifetime, 8923 publications have been published within this topic receiving 170993 citations.
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TL;DR: Results of this study are very promising as it enables the use of the crude lipopeptide preparation of B. subtilis SPB1 as a potent natural fungicide that could effectively control the infection of F. solani in tomato and potato tubers at a concentration similar to the commercial fungicide hymexazol and therefore prevent the damage of olive tree.
Abstract: Bacillus subtilis SPB1 lipopeptides were evaluated as a natural antifungal agent against Fusarium solani infestation. In vitro antifungal assay showed a minimal inhibitory concentration of about 3 mg/ml with a fungicidal mode of action. In fact, treatment of F. solani by SPB1 lipopeptides generated excessive lyses of the mycelium and caused polynucleation and destruction of the related spores together with a total inhibition of spore production. Furthermore, an inhibition of germination potency accompanied with a high spore blowing was observed. Moreover, in order to be applied in agricultural field, in vivo antifungal activity was proved against the dry rot potato tubers caused by F. solani. Preventive treatment appeared as the most promising as after 20 days of fungi inoculation, rot invasion was reduced by almost 78%, in comparison to that of non-treated one. When treating infected tomato plants, disease symptoms were reduced by almost 100% when applying the curative method. Results of this study are very promising as it enables the use of the crude lipopeptide preparation of B. subtilis SPB1 as a potent natural fungicide that could effectively control the infection of F. solani in tomato and potato tubers at a concentration similar to the commercial fungicide hymexazol and therefore prevent the damage of olive tree.
49 citations
TL;DR: The results suggest that these fluorescent pseudomonad strains enhanced spruce seedling growth through mechanisms unrelated to increased mycorrhizal colonization, but growth promotion of pine by strains Sm3-RN and Ss2-RN was facilitated by an interaction with my Corrhizae.
49 citations
TL;DR: The results demonstrated that the monoxenic culture system could be used as a standardized, reproducible technique to compare the impacts of different molecules on arbuscular mycorrhizal fungi, and for the initial screening of new candidate molecules before registration.
49 citations
TL;DR: The activity of the NADP-linked glutamate dehydrogenase (GDHNADP) increased in the pileus during sporophore development but remained at a low level in the parent mycelium and in the sporophores stipe, suggesting that the increase in GDHNAD activity is a developmental phenomenon.
Abstract: SUMMARY: The activity of the NADP-linked glutamate dehydrogenase (GDHNADP) increased in the pileus during sporophore development but remained at a low level in the parent mycelium and in the sporophore stipe. In contrast, the NAD-linked enzyme (GDHNAD) increased in mycelium, stipe and pileus. It is suggested that the increase in GDHNADP activity is a developmental phenomenon. In vegetative mycelia the two GDH enzymes appeared to be regulated reciprocally; GDHNAD was subject to catabolite repression and urea derepression, while GDHNADP was catabolite derepressed and repressed by urea. It is suggested that GDHNAD may be the enzyme normally involved in ammonia assimilation, GDHNADP being reserved for specific functions associated with developmental alterations in metabolism.
49 citations
TL;DR: Two new sesquiterpenoid aromatic esters, armillarin and armillaridin, have been isolated from the artificially cultured mycelium of ARMILLARIA MELLEA (Vahl. ex Fr.) Quel.
Abstract: Two new sesquiterpenoid aromatic esters, armillarin and armillaridin, have been isolated from the artificially cultured mycelium of ARMILLARIA MELLEA (Vahl. ex Fr.) Quel. (Tricholometaceae). On the basis of spectral (UV, IR, 1 H-NMR, 13 C-NMR and MS) analysis and chemical degradation as well as X-ray crystallography, their structures were identified as ( 1) and ( 2), respectively.
49 citations