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Search Results: 1 - 10 of 8169 matches for " fungi effects. "
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Development of Lutzomyia intermedia and Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) larvae in different diets
WERMELINGER, E. D.;ZANUNCIO, J. C.;
Brazilian Journal of Biology , 2001, DOI: 10.1590/S1519-69842001000300009
Abstract: the objective of this research was to evaluate, in laboratory, the development of lutzomyia intermedia and lutzomyia longipalpis (diptera: psychodidae: phlebotominae) larvae, vectors of leishmaniasis in brazil, in the following diets: industrialized food for rabbits, dogs, hamsters and aquarium fishes, besides liver powder, cooked lettuce, wheat germ, beer yeast, oat, wheat bran and a diet denominated aged food. except wheat bran for l. intermedia, all diets provided adequate development for both species, which showed that any of them can be used in laboratory insectaries for these insects. l. intermedia showed better development with most nutritious diets and both species presented better development with aged food. fungi as an additional nutrient source for l. intermedia and l. longipalpis is suggested.
Development of Lutzomyia intermedia and Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) larvae in different diets
WERMELINGER E. D.,ZANUNCIO J. C.
Brazilian Journal of Biology , 2001,
Abstract: The objective of this research was to evaluate, in laboratory, the development of Lutzomyia intermedia and Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) larvae, vectors of leishmaniasis in Brazil, in the following diets: industrialized food for rabbits, dogs, hamsters and aquarium fishes, besides liver powder, cooked lettuce, wheat germ, beer yeast, oat, wheat bran and a diet denominated aged food. Except wheat bran for L. intermedia, all diets provided adequate development for both species, which showed that any of them can be used in laboratory insectaries for these insects. L. intermedia showed better development with most nutritious diets and both species presented better development with aged food. Fungi as an additional nutrient source for L. intermedia and L. longipalpis is suggested.
Bacteria Associated with Arbuscula Mycorrhizal Spores Gigaspora margarita and Their Potential for Stimulating Root Mycorrhizal Colonization and Neem (Melia azedarach Linn) Seedling Growth
SRI WILARSO BUDI,YENNI BAKHTIAR,NUNANG LAMAEK MAY
Microbiology Indonesia , 2012, DOI: 10.5454/mi.6.4.6
Abstract: Four isolates (BGi1, BGi2, BGi3, and BGi4) bacteria were isolated from surface sterilized arbuscular mycorrhizal fungi (AMF) spores of Gigaspora margarita (Gm). Based on 16S rDNA analyses and phylogenetic tree, it was revealed that isolates BGi1, BGi3 and BGi4 belong to genus Bacillus, whereas BGi2 was very close to Bacillus megaterium EG 24. Enzymatic activity test showed that all four isolates had cellulase and protease activities; while one isolate (Bacillus sp. BGi4) also has pectinase activity in addition to the celulase and protease activities. Dual inoculation of Melia azedarch Linn roots by B. megaterium BGi2 and AMF spores G. margarita enhanced mycorrhizal root colonization by 58.3 %. Combination of Bacillus sp. BGi1 and G. margarita increased height, diameter, shoot biomass, and root biomass of M. azedarch by 353, 4.8, 4546, and 2810%, respectively, in comparison to the uninoculated control plant.
Three New Anamorph of Ceramothyrium from Fallen Leaves in Vietnam  [PDF]
Le Thi Hoang Yen, Yasuhisa Tsurumi, Duong Van Hop, Katsuhiko Ando
Advances in Microbiology (AiM) , 2018, DOI: 10.4236/aim.2018.84021
Abstract: Three new anamorph of Ceramothyrium aquaticum sp. nov., Ceramothyrium exiguum sp. nov., and Ceramothyrium phuquocense sp. nov. are described and illustrated. These fungi were isolated from submerged decaying leaves collected from Phu Quoc National Park, Phu Quoc province, Viet Nam. The phylogeny based on ITS region and D1/D2 of the 28S rDNA gene showed that these fungi nested in the Ceramothyrium. Morphologically, C. aquaticum, C. phuquocense sp. nov. and C. exiguum sp. nov. are characterized; they were different from known anamorph species of Ceramothyrium by having one main axis and two lateral arms with 70 - 90, 33.5 - 72.5 and 70 - 130 μm long main axis, respectively. The table to compare Ceramothyrium anamorph is also given.
Production, Detection and Cross-Reactivity of Anti-Polysaccharide Antibodies from Environmental Fungi  [PDF]
Rafael Andrade Menolli, Thais Soprani Ayala, Pablo Rodrigo da Rosa, Claudia Rejane Lima de Macedo Costa, Erica Fernanda Osaku, Rosiane G. Mello Zibetti
Advances in Bioscience and Biotechnology (ABB) , 2014, DOI: 10.4236/abb.2014.510095
Abstract: The diagnosis of Invasive Fungal Disease (IFD) is difficult because the sensitivity of conventional culture and cytology methods for the detection of Aspergillus is poor, and because serological methods exhibit cross-reactivity with environmental fungi. Fungal polysaccharides are of particular interest in the serologic diagnosis of IFD, especially galactomannan (GM) and glucan, which have been recognized as useful tools for the diagnosis of fungal infections. Further investigation into polysaccharide antibody cross-reactivity is important in improving diagnostic tests. Our aim was to verify the production of antibodies against fungal antigens in mice immunized with exopolysaccharides (EPS) obtained from three fungal species (Aspergillus terreus, Paecilomyces variotii and Curvularia brachyspora). ELISA assays were performed to evaluate homologous and heterologous reactions and showed anti-polysaccharide antibodies production. EPS from A. terreus was immunogenic enough to immunize the animal and lead to antibody production against this EPS. In addition, no cross-reactivity was observed with EPS obtained from P. variotii and C. brachyspora. The EPS from P. variotii did not exhibit good immunogenicity, whereas EPS from C. brachyspora showed good immunogenicity, and heterologous reactions were detected on the ELISA assays performed using the EPS from this species. The results indicate that immunization can occur for environmental fungal polysaccharides, generating antibodies may be interfere in serological diagnosis that are based on detection of fungal polysaccharides, mainly glucans and galactomannans.
Growth response of white clover to inoculation with different Arbuscular mycorrhizal fungi communities
丛枝菌根真菌群落对白三叶草生长的影响

WANG Xiaoying,WANG Dongmei,CHEN Baodong,HUANG Yizong,WANG Youshan School of Soil & Water Conservation,Key Laboratory of Soil,Water Conservation,Desertification Combating,Ministry of Education,Beijing Forestry University,Beijing,China Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,China Institute of Plant Nutrition & Resources,Beijing Academy of Agriculture,Forestry Science,Beijing,China,
王晓英
,王冬梅,陈保冬,黄益宗,王幼珊

生态学报 , 2010,
Abstract: Arbuscular mycorrhizal fungi community structure is affect by different fertilization but it is unclear how this affects plant growth and nutrient uptake. We studied the effects of 7 different mycorrhizal communities on growth and N, P, K, Cu, Zn, Mn uptake of white clover in pot experiments. The 7 AMF communities were collected from a long-term fertilization field trial, with the following treatments: control without amendment (CK), nitrogen + phosphorus + potassium fertilization (NPK), organic matter fertilization (OM), nitrogen + phosphorus + potassium + organic matter fertilization (1/2OM), nitrogen + phosphorus fertilization (NP), nitrogen + potassium fertilization (NK) and phosphorus + potassium fertilization (PK). The nutrients were applied annually at the following rates N 300kg /hm2 as urea, P2O5135 kg/hm2 as Ca(H2PO4) 2, K2O 300kg/hm2 as K2SO4 with similar rates in the NPK and the OM treatment. The OM treatment consisted of mix wheat straw and fermented soybean and cottonseed, organic fertilizer. For the pot experiment, the soil from a long-term fixed fertilization in Fengqiu was sterilized. All AMF communities had a positive effect on white clover growth, but their effects differed. The AMF colonization rate of the community from the control was significant lower than all other treatments. AMF communities collected from 1/2OM and OM significantly improved P uptake. Compared to CK, most AMF communities improved uptake of N and K; Compared to the other treatments, AMF communities collected from OM, CK, 1/2OM, NP, NK reduced N concentration, and those collected from NPK increased K concentration. The concentrations of Cu, Zn, Mn differed between treatments. These results show that different AMF communities affect growth and nutrient uptake on white clover differentially, probably because of different dominant AMF species which may differ in colonization rate, nutrient transfer to the host and development of hyphae.
Recent Advances in the Study of Signal Substances in Plants Induced by Arbuscular Mycorrhizal Fungi
丛枝菌根真菌诱导植物信号物质研究进展

WANG Bin,ZHANG Jin-Zheng,LIU Xin,LI Min,LIU Run-Jin,
王彬
,张金政,刘新,李敏,刘润进

微生物学通报 , 2010,
Abstract: Many signal substances, such as salicylic acids (SA), jasmine acids (JA), flavonoids, NO, H2O2, etc. in plants are induced by arbuscular mycorrhizal (AM) fungi which colonize plant roots. The signal movement pathways and function mechanisms of these signals have been paid more attention to in recent years. In this review, we firstly summed up the signal substance kinds and quantities in plants inoculated with AM fungi, then discussed the signal transduction pathway, physiological effects and the related functioning mechanism in mycorrhizal plants, in order to provide a basis for the further study symbiotic relationship and mechanisms between AM fungi and plants.
The occurrence of keratinophilic fungi in selected soils of Ladakh (India)  [PDF]
Sunil K. Deshmukh, Shilpa A. Verekar, Archana Shrivastav
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.211151
Abstract: 138 soil samples were collected from various loca-tions in Ladakh, a cold desert in the Himalayan region, India and the samples were screened for the presence of keratinophilic fungi using the hair baiting techniques. 58 isolates were recovered and identified. The cultures were identified based on their macro- and micro-morphological features. A total of six genera and fourteen species were isolated namely Amauroascus kuehnii (0.72%), Aphanoascus keratinophilus (4.34%), Aphanoascus terreus (2.17%), Auxarthron alboluteum (0.72%), Auxarthron conjugatum (0.72%), Chrysosporium articulatum (0.72%), Chrysosporium mephiticum (0.72%), Chrysosporium minutisporosum (2.17%), Chrysosporium siglerae (0.72%), Chrysosporium sp. (1.44%), Chrysosporium tropicum (15.94 %), Chrysosporium submersum (3.62%), Chrysosporium state of Ctenomyces serratus (6.52%) and Geomyces pannorum (1.45%). The present study shows that keratinophilic fungi exist in the cold desert of Ladakh.
Inverse Correlation of Ability to Produce Aflatoxin and Aspergillus Colonization of Maize Seed  [PDF]
Kenneth C. Ehrlich, Qijian Wei, Robert L. Brown, Deepak Bhatnagar
Food and Nutrition Sciences (FNS) , 2011, DOI: 10.4236/fns.2011.25070
Abstract: Seeds of aflatoxin-resistant and aflatoxin-susceptible maize lines were inoculated with conidia of aflatoxin-producing Aspergillus flavus or A. parasiticus isolates or isogenic non-producing mutants. Conidia were recovered from resistant maize seed after seven days in significantly lower amounts for aflatoxin-producing A. flavus and A. parasiticus strains than for isogenic mutants incapable of aflatoxin production. This result helps to explain why, in currently used biocontrol strategies for aflatoxin elimination, non-aflatoxigenic isolates are able to out-compete aflatoxin-producing isolates for invasion of the seed.
Phylogenetic Identification of Pathogenic Fungi from Apple in Batu City, Malang, Indonesia  [PDF]
Fitria W. Lestari, Suharjono  , Estri L. Arumingtyas
Advances in Microbiology (AiM) , 2013, DOI: 10.4236/aim.2013.31011
Abstract:

Pathogenic fungi cause dying off of apple tree and giving negative impact to farmers. The objective of this study was to identify tree pathogenic fungi isolates from apple tree in the Batu City and to know phylogenetic relationship of the isolates based on the DNA sequences. The method in this study included subculture of three pathogenic fungi isolates (M1, M4, and MB1) using V8 Juice Agar medium for one to three days, continued with DNA isolation, amplification using ITS5/ITS4 primer, purification, sequencing, and sequence homology analysis of DNA amplicons of each isolates with reference isolates. The results showed similarity value of DNA sequence of the three isolates M1, M4, and MB1 of more than 99%. The three isolates M1, M4, and MB1 have a similarity value of DNA sequence with species of Pythium splendens of 99.84%, 99.67% and 99.83%, respectively. On the other hand similarity value between those isolates with Phytophthora was less than 76%. It was concluded that the three isolates are Py. splendens.

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