First record of<i>Aspergillus oryzae</i>(Eurotiales: Trichocomaceae) as an entomopathogenic fungus of the locust, Locusta migratoria (Orthoptera: Acrididae)

Zhang, Pengfei; You, Yinwei; Yuan, Sheng; Zhang, Long

doi:10.1080/09583157.2015.1049977

Cited by 28 publications

(27 citation statements)

References 31 publications

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“…Generally, the physiological activities of the animal were normal, which suggests that A. oryzae may not have toxic effects on the rabbits. This agrees with other studies which indicated that A. oryzae and other entomopathogenic fungi have no effect on non-target organisms and are environmentally-friendly (Fernandes and Bittencourt, 2008;Ghany, 2015;Kaaya and Hassan, 2000;Kalsbeek et al, 1995;Stafford and Allan, 2014;Zekeya et al, 2020Zekeya et al, , 2019Zhang et al, 2015).…”

Section: Discussionsupporting

confidence: 91%

Entomopathogenic fungi (Aspergillus oryzae) as biological control agent of cattle ticks in Tanzania

Sylvia¹,

Zekeya²,

Esther³

et al. 2022

J. Vet. Med. Anim. Health

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Ticks are the most important ectoparasites that are responsible for severe economic losses in livestock industry. The use of chemical acaricides is the most common method used to control ticks in livestock. This study was conducted to determine the efficacy of Aspergillus oryzae as an alternative biological agent in controlling ticks to enhance livestock productivity. The efficacy of A. oryzae at different concentrations was evaluated against larvae and adults of the hard tick genera Rhipicephalus, Boophilus, and Amblyomma using an immersion test under laboratory conditions. Field trials were conducted in two purposively selected cattle herds in Monduli district, northern Tanzania. A. oryzae at a concentration of 1 × 10 6 conidial/ml was sprayed on all cattle tick-infested areas. The results demonstrated a concentration-related increase in mortality for both larvae and adult female engorged ticks. The mean mortality of larvae and female engorged ticks was statistically significant at p ˂ 0.05 and p ˂ 0.001, respectively. Egg production was found to decrease with increased A. oryzae concentration. Additionally, there was a statistically significant difference in egg production index and oviposition reduction (p = 0.009) while there was no significant difference in egg hatching and product effectiveness at p = 0.089 and p = 0.004, respectively between the tested ticks' genera. Under field conditions, the bio-acaricide demonstrated a statistically significant tick reduction in all the treated cattle. This study concludes that A. oryzae has good acaricidal activity against ticks and hence, is one of the potential tick control methods for sustainable tick control schemes.

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Section: Discussionsupporting

confidence: 91%

Entomopathogenic fungi (Aspergillus oryzae) as biological control agent of cattle ticks in Tanzania

Sylvia¹,

Zekeya²,

Esther³

et al. 2022

J. Vet. Med. Anim. Health

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“…Our results found that M. anisopliae CQMa421 could effectively infected the adults and nymphs of the pest L. migratoria, suggesting the potential of this fungus for the pest control. Aspergillus oryzae (Eurotiales: Trichocomaceae) was also reported as an entomopathogenic fungus for the control of the locust L. migratoira [48]. The low LT50 of L. migratoria found under concentrations of 1 × 10 7 conidia/ml and 1 × 10 8 conidia/mL indicated high susceptibility of L. migratoria to M. anisopliae infection.…”

Section: Discussionmentioning

confidence: 99%

Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Mortality and Immune Response of Locusta migratoria

Jiang

Peng

et al. 2019

Insects

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Entomopathogenic fungi are the key regulators of insect populations and some of them are important biological agents used in integrated pest management strategies. Compared with their ability to become resistant to insecticides, insect pests do not easily become resistant to the infection by entomopathogenic fungi. In this study, we evaluated the mortality and immune response of the serious crop pest Locusta migratoria manilensis after exposure to a new entomopathogenic fungus strain, Metarhizium anisopliae CQMa421. M. anisopliae CQMa421 could effectively infect and kill the L. migratoria adults and nymphs. The locust LT50 under 1 × 108 conidia/mL concentration of M. anisopliae was much lower than that under conidial concentration 1 × 105 conidia/mL (i.e., 6.0 vs. 11.2 and 5.0 vs. 13.8 for adults and nymphs, respectively). The LC50 (log10) of M. anisopliae against locust adults and nymphs after 10 days was 5.2 and 5.6, respectively. Although the number of hemocytes in L. migratoria after exposure to M. anisopliae did not differ with that in the controls, the enzymatic activity of superoxide dismutase (SOD) and prophenoloxidase (ProPO) did differ between the two treatments. The activities of both SOD and ProPO under the M. anisopliae treatment were lower than that in the controls, except for the ProPO activity at 72 h and the SOD activity at 96 h. Further, the expression of the L. migratoria immune-related genes defensin, spaetzle, and attacin differed after exposure to M. anisopliae for 24 h to 96 h. Taken together, this study indicated that infection with M. anisopliae CQMa421 could cause the death of L. migratoria by interacting with the immune responses of the host, demonstrating that this fungal strain of M. anisopliae can be an efficient biocontrol agent against L. migratoria.

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“…Moreover, although Trichocomaceae species are ubiquitous in plant and soil materials [48,49], this fungal family was rarely found in the soil in our study (< 0.63%). Entomopathogenic species are also known in this family [50], suggesting that there may be a parasitic relationship with beetles. However, it is also possible that this group enters scavengers' guts with food resources such as dead carcasses, where they grew prolifically.…”

Section: Discussionmentioning

confidence: 99%

Gut bacterial and fungal communities in ground-dwelling beetles are associated with host food habit and habitat

et al. 2018

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Beetles (Coleoptera) have the highest species diversity among all orders, and they have diverse food habits. Gut microbes may have contributed to this diversification of food habits. Here, we identified the pattern of the relationship between ground-dwelling beetles and their gut microbial communities (bacteria and fungi) in the field. We collected 46 beetle species of five families from secondary deciduous forests and grasslands in Japan and extracted microbial DNA from whole guts for amplicon sequencing. The gut bacterial and fungal communities differed among all habitats and all food habits of their hosts (carnivores, herbivores, omnivores, and scavengers) except for the fungal communities between carnivores and scavengers. Specifically, the abundant bacterial group varied among food habits: Xanthomonadaceae were abundant in scavengers, whereas Enterobacteriaceae were abundant in carnivores and herbivores. Phylogenetically closely related beetles had phylogenetically similar communities of Enterobacteriaceae, suggesting that the community structure of this family is related to the evolutionary change in beetle ecology. One of the fungal groups, Yarrowia species, which has been reported to have a symbiotic relationship with silphid beetles, was also detected from various carnivorous beetles. Our results suggest that the symbiotic relationships between ground-dwelling beetles and these microbes are widespread.

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First record ofAspergillus oryzae(Eurotiales: Trichocomaceae) as an entomopathogenic fungus of the locust, Locusta migratoria (Orthoptera: Acrididae)

Cited by 28 publications

References 31 publications

Entomopathogenic fungi (Aspergillus oryzae) as biological control agent of cattle ticks in Tanzania

Entomopathogenic fungi (Aspergillus oryzae) as biological control agent of cattle ticks in Tanzania

Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Mortality and Immune Response of Locusta migratoria

Gut bacterial and fungal communities in ground-dwelling beetles are associated with host food habit and habitat

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