Improving UV resistance and virulence of Beauveria bassiana by genetic engineering with an exogenous tyrosinase gene

Shang, Yanfang; Duan, Zhi-quan; Huang, Wei; Gao, Qiang; Wang, Chengshu

doi:10.1016/j.jip.2011.10.004

Cited by 60 publications

(32 citation statements)

References 36 publications

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“…The overexpression of insect cuticle-degrading enzymes in insecticidal fungi may significantly enhance the virulence against insects. [44] Similarly, an increase in nematode eggshell-degrading enzymes could also enhance the virulence of P. lilacinus against plant-parasitic nematode eggs, as confirmed by a previous research.…”

Section: Protease Activity Analysis and Egg-parasitic Abilitysupporting

confidence: 65%

Conversion of food waste into biofertilizer for the biocontrol of root knot nematode by Paecilomyces lilacinus

Zhang

et al. 2015

Environmental Technology

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The feasibility of converting food waste into nematocidal biofertilizer by nematophagous fungus Paecilomyces lilacinus (P. lilacinus) was investigated. The culture conditions of P. lilacinus were optimized through response surface methodology. Results showed that fermentation time, the amount of food waste, initial pH and temperature were most important factors for P. lilacinus production. The P. lilacinus production under optimized conditions was 10(9.6 ± 0.3) conidia mL⁻¹. After fermentation, the chemical oxygen demand concentration of food waste was efficiently decreased by 81.92%. Moreover, the property evaluation of the resultant food waste as biofertilizer indicates its high quality with reference to the standard released by the Chinese Ministry of Agriculture. The protease activity and nematocidal ability of P. lilacinus cultured by food waste were 10.8% and 27% higher than those by potato dextrose agar, respectively.

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Section: Protease Activity Analysis and Egg-parasitic Abilitysupporting

confidence: 65%

Conversion of food waste into biofertilizer for the biocontrol of root knot nematode by Paecilomyces lilacinus

Zhang

et al. 2015

Environmental Technology

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“…Transgenic expression of a melanin biosynthetic pathway, tyrosinase, or a highly active photolyase derived from archaebacteria resulted in increased resistance to sunlight and Uv exposure (Fang and St Leger 2012;Shang et al 2012;Tseng et al 2011). expression of a bacterial thioredoxin in B. bassiana increased fungal resistance to oxidative, heat, and Uv-B irradiation .…”

Section: Figmentioning

confidence: 99%

Stress response signaling and virulence: insights from entomopathogenic fungi

2014

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The Ascomycete fungal insect pathogens, Beauveria and Metarhizium spp. have emerged as model systems with which to probe diverse aspects of fungal growth, stress response, and pathogenesis. Due to the availability of genomic resources and the development of robust methods for genetic manipulation, the last 5 years have witnessed a rapid increase in the molecular characterization of genes and their pathways involved in stress response and signal transduction in these fungi. These studies have been performed mainly via characterization of gene deletion/knockout mutants and have included the targeting of general proteins involved in stress response and/or virulence, e.g. catalases, superoxide dismutases, and osmolyte balance maintenance enzymes, membrane proteins and signaling pathways including GPI anchored proteins and G-protein coupled membrane receptors, MAPK pathways, e.g. (i) the pheromone/nutrient sensing, Fus3/Kss1, (ii) the cell wall integrity, Mpk1, and (iii) the high osmolarity, Hog1, the PKA/adenyl cyclase pathway, and various downstream transcription factors, e.g. Msn2, CreA and Pac1. Here, we will discuss current research that strongly suggests extensive underlying contributions of these biochemical and signaling pathways to both abiotic stress response and virulence.

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“…Various studies have revealed the associated relationship between melanin production and fungal virulence (Eisenman and Casadevall, 2012;Shang et al, 2012;Tseng et al, 2014). To determine the effects of MrPks1 and MrPks2 deletions on fungal pathogenicity, insect bioassays were conducted against silkworm larvae.…”

Section: No Impairment Of Fungal Virulencementioning

confidence: 99%

Biosynthesis of non-melanin pigment by a divergent polyketide synthase in Metarhizium robertsii

Chen¹,

Peng²,

Shang³

et al. 2015

Fungal Genetics and Biology

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Improving UV resistance and virulence of Beauveria bassiana by genetic engineering with an exogenous tyrosinase gene

Cited by 60 publications

References 36 publications

Conversion of food waste into biofertilizer for the biocontrol of root knot nematode by Paecilomyces lilacinus

Conversion of food waste into biofertilizer for the biocontrol of root knot nematode by Paecilomyces lilacinus

Stress response signaling and virulence: insights from entomopathogenic fungi

Biosynthesis of non-melanin pigment by a divergent polyketide synthase in Metarhizium robertsii

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