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Physiology and molecular characteristics of a pine wilt nematode-trapping fungus, Monacrosporium megalosporum

, : Physiology and molecular characteristics of a pine wilt nematode-trapping fungus, Monacrosporium megalosporum. Current Microbiology 49(3): 158-164

We isolated the nematode-trapping fungus Monacrosporium megalosporum from nature and examined its morphology, physiology and molecular characteristics. The nematode-trapping device of this fungus is a three-dimensional network. This fungus captures the pine wilt nematode (Bursaphelenchus xylophilus), but not a non-phytopathogenic nematode that is morphologically similar to B. xylophilus. The phylogenic relationship of the nucleotide sequence of the rDNA ITS region was close to those of M. thaumasium and Geniculifera eudermata, which also have nematode-trapping devices that are three-dimensional networks. Acidic pH inhibited both the liberation and regeneration of protoplasts. Moreover, cytoplasmic granulation of protoplasts was found below pH 6.0. Mycelial growth on agar media was also inhibited below pH 4, but not at pH 9. These results strongly suggest that the activity of this fungus is inhibited by acid rain in the field. Therefore, development of pine wilt disease might be a secondary effect of acid rain.


PMID: 15386097

DOI: 10.1007/s00284-004-4268-9

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Uhlig, S.; Zentsch, W., 1961: Weed control with W 6658 in tree nurseries. Recommendations are given for controlling weeds in tree nurseries with W 6658 . W 6658 at 3-4 kg/ha in 600- 1000 l water applied pre-em. (weed) or at emergence (weed) to moist soils in the spring gives good control of the following weeds until the...

Palmer, D.G.; Dunckley, J.V., 1973: Gold levels in serum during the treatment of rheumatoid arthritis with gold sodium thiomalate. Australian and New Zealand Journal of Medicine 3(5): 461-466

Clark A.; Grant A.M., 1983: Quantitative morphology of endocrine cells in human fetal pancreas. Sections of pancreas from human fetuses, 6-20 wk gestation, were stained with immunoperoxidase for insulin (B cells), glucagon (A cells), pancreatic polypeptide or somatostatin (D cells). Morphometric analyses were performed on sections from head...

Pouillart, P.; Botto, G.; Gauthier, H.; Huguenin, P.; Baron, A.; Laparre, C.; Hoang Thy, H.T.; Parrot, R.; Mathé, G., 1976: Correlation between immunological stage and response to chemotherapy. Results in 64 patients with nonresectable epidermoid bronchial cancers. Out of 64 patients with non resectable epidermal bronchus carcinoma, 26 patients had before any treatment positive responses of skin tests to recall antigens. In these patients we found a correlation between the reactivity of the skin tests, the p...

Ramos, A.; Quintana, P.J.E.; Ji, M., 2015: Hair mercury and fish consumption in residents of O'ahu, Hawai'i. Recent studies have established that men are susceptible to cardiotoxicity from methylmercury exposure, which also poses risks to the pregnant woman. Hair samples were obtained and questionnaires for methylmercury exposure assessment were administ...

Leyko W.; Osmulski P.A., 1985: Seasonal variability of hemoglobin content and component composition of chironomus thummi thummi larvae. The C. t. thummi Hb was isolated and separated into monomeric and dimeric Hb by gel chromatography and into singe components using disc electrophoresis. Essential properties of the Hb was studied (MW, UV and visible absoprtion spectra and componen...

Karnaky, K.J., 1952: A simple way of preventing nausea and vomiting in most patients receiving micronized stilbestrol. Mississippi Valley Medical Journal 74(5): 134-136

Van Bueren, J.; Cooke, E.M.; Mortimer, P.P.; Simpson, R.A., 1989: Inactivation of HIV on surfaces by alcohol. Bmj 299(6696): 459-459

Colinet, H.; Salin, C.; Boivin, G.; Hance, T., 2005: Host age and fitness-related traits in a koinobiont aphid parasitoid. 1. Trade-offs play a key role in species evolution and should be found in host-parasitoid interactions where the host quality may differ between host age categories.2. The braconid wasp, Aphidius ervi, is a solitary endoparasitoid that allows its...

Trentin, A., 1955: Leone and Leonardo, new wheats of the Lonigo Genetics Institute. The two varieties have compared favourably in yield not only with the standards but with exceptionally good new wheats such as Funone and Produttore . Leone (S.Pastore x Funo 222/51) yielded 61.815 c. of grain per ha. in 1954/5 compared with 47.50...