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beauveria bassiana mingguang feng

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https://www.readbyqxmd.com/read/23614237/-antioxidation-and-multidrug-resistance-of-structure-similar-atp-binding-cassette-transporter-proteins-in-two-fungal-entomopathogens
#1
Jing Zhao, Tingting Song, Shenghua Ying, Mingguang Feng
OBJECTIVE: Structure-similar ATP-binding cassette (ABC) transporter proteins, BbT1 in Beauveria bassiana (Bb) and IfT1 in Isaria fumosorosea (If), were characterized. METHODS: Various phenotypes including cellular antioxidant response, multidrug resistance and virulence were compared between wild-type strain and the constructed mutants DeltaBbT1, DeltaBbT1/BbT1 and DBbT1/IfT1. RESULTS: Compared with the wild-type, DeltaBbT1/BbT1 and DeltaBbT1/ IfT1 strains showing no significant changes in examined phenotypes, DeltaBbT1 became 27% to 2...
January 4, 2013: Wei Sheng Wu Xue Bao, Acta Microbiologica Sinica
https://www.readbyqxmd.com/read/17044504/-compatibility-of-two-fungal-biocontrol-agents-conidia-with-commercial-chemical-acaricides
#2
Yu Jiang, Mingguang Feng
In this paper, the biological compatibility of fungal biocontrol agents Beauveria bassiana and Paecilomyces fumosoroseus conidia with 10 commercial chemical acaricides were assayed, based on the conidial germination rates in nutritional liquid and on SDAY plate. The results showed that nutritional liquid was more available than SDAY plate in the assay. So far as the 24 h conidial viability concerned, there were significant differences among the test acaricides with the concentrations of recommended for field spray and 5 and 10 fold dilutions, as well as between the two fungal agents...
July 2006: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/16276902/-evaluation-for-enhanced-aphidicidal-activity-of-a-noval-emulsifiable-formulation-of-beauveria-bassiana-conidia
#3
Yuhui Dun, Mingguang Feng, Shenghua Ying
A noval emulsifiable formulation (EF) of Beauveria bassiana SG8702 containing 10(10) conidia/mL was prepared by suspending dry conidia in mineral oil-based liquid containing emulsifier, stabilizer and UV protectant (emulsion), and then bioassayed on newly merged adults of the green peach aphid, Myzus percisae, in parallel to the unformulated conidia (UC). For inoculation, five gradient concentrations of aqueous EF and UC suspensions (5 x 10(5) - 1 x 10(8) conidia/mL) were separately sprayed on to aphids on detached cabbage leaves (30 - 40 adults/leaf) using a Micro Ulva hand-held sprayer, generating EF dosages of 1...
December 2003: Wei Sheng Wu Xue Bao, Acta Microbiologica Sinica
https://www.readbyqxmd.com/read/15334957/-efficacy-of-emulsifiable-formulations-of-two-entomopathogenic-fungi-against-small-green-leafhoppers-on-tea-plant
#4
COMPARATIVE STUDY
Xiaoying Pu, Mingguang Feng
A field trial was conducted to test the efficacy of emulsifiable formulations of Beauveria bassiana (Bb) and Paecilomyces fumosoroseus (Pf) conidia in controlling small green leafhoppers (Empoasca spp.) on tea plant in a hillside tea garden located in Shuichang, Zhejiang during mid-summer 2002. Both Bb and Pf formulations contained 10(10) conidia x ml(-1). Adding 3% of imidacloprid 10% WP to each fungal formulation (W/V) resulted in two other formulations, i.e., Bb-imidacloprid mixture (BbIM) and Pf-imidacloprid mixture (PfIM)...
April 2004: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/14997650/-evaluation-of-interactive-efficacy-of-two-mycoinsecticides-and-low-application-rate-imidacloprid-in-controlling-greenhouse-whitefly-trialeurodes-vaporariorum-homoptera-aleyrodidae
#5
Bin Chen, Mingguang Feng
The interactive effects of pure emulsifiable formulations (10(10) conidia.ml-1) of Beauveria bassiana and Paecilomyces fumosoroseus conidia and 1% and 3% of imidacloprid 10% WP were tested for controlling greenhouse whitefly, Trialeurodes vaporariorum, on lettuce grown in four polyethylene film-covered greenhouses (5 m x 100 m) in Kunming, Yunnan. Six fungal treatments, two imidacloprid ones, and one water-spray control were included in the experiment, with each being replicated in three plots (7 m x 5 m.plot-1)...
November 2003: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/12920898/-field-efficacy-of-emulsifiable-suspensions-of-beauveria-bassiana-conidia-for-control-of-myzus-persicae-population-on-cabbage
#6
Shenghua Ying, Mingguang Feng, Shoutao Xu, Zaibo Ma
The conidial powder of Beauveria bassiana SG8702 produced using a diphasic fermentation technology was formulated into emulsifiable suspension I (EI-I, > 10(10) conidia.ml-1) and ES-II, which resulted from adding 1% (W/V) of imidacloprid 10% WP to the ES-I. Three dilutions (10(7), 10(6), and 10(5) conidia.ml-1 of each were sprayed onto cabbage plants for control of the green peach aphid Myzus persicae population in field plots in Kunming, Yunnan during July 2001. Each dilution and a water spray as control were replicated three times...
April 2003: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/12222050/-variation-in-the-viability-and-the-metabolism-of-internally-reserved-nutrients-of-beauveria-bassiana-conidia-during-storage-at-different-regimes-of-water-content-and-temperature
#7
Mingguang Feng, Shenghua Ying
While the fresh powder (with water content of 58.9 +/- 1.6%) and vacuum-freeze dried (VFD) one (with water content of 7.4 +/- 0.9%) of Beauveria bassiana SGBB8702 conidia were stored at 4 degrees C and 20 degrees C, their viability and contents of internally reserved saccharides and proteins were examined at 5 days intervals. It was found during one-month storage that the water content and temperature interactively affected the levels of conidia viability and the contents of the reserved saccharides and proteins, which in turn correlated considerably well to the viability...
April 2002: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/12216397/-time-specific-infection-rate-of-beauveria-bassiana-on-myzus-persicae-after-topical-inoculation-of-conidial-suspension
#8
Shoutao Xu, Mingguang Feng, Shenghua Ying
Conidial suspension(5 x 10(6) conidia.ml-1) of the entomopathogenic fungus, Beauveria bassiana BBSG8702 was used to inoculate newly emerged apterous adults of the green peach aphid (Myzus persicae) on detached cabbage leaves in order to measure time-specific infection rate of the fungal agent. The aphids of conidia attached were disinfected using 0.2% chlorothalonil solution at intervals of 8-56 h after inoculation and then maintained at 10 and 20 degrees C for daily observation. There was a significant difference (P < 0...
June 2002: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
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