Ecologically controlling insect and mite pests of tea plants with microbial pesticides: a review

Idris, Aisha Lawan; Fan, Xuetong; Muhammad, Musa Hassan; Guo, Yachong; Guan, Xiong; Huang, Tianpei

doi:10.1007/s00203-020-01862-7

Cited by 35 publications

(23 citation statements)

References 44 publications

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“…These diverse effects allow the use of PGPB for protection against multiple environmental factors. Thus, B. thuringiensis strains can be applied to protect tea plants from both insect and mite pests ( Idris et al, 2020 ). The multifunctional protective effect of endophytic strain B. subtilis 26DCry expressing insectotoxic Cry1Ia protein and surfactin against both aphids and pathogens on wheat plants was shown previously ( Maksimov et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Endophytic Bacillus spp. as a Prospective Biological Tool for Control of Viral Diseases and Non-vector Leptinotarsa decemlineata Say. in Solanum tuberosum L.

et al. 2020

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Viral diseases and their damage causing significant loss to economically important crops have increased by several folds during the last decade. All the conventional approaches are not able to eradicate the viral infection. Therefore, there is a need to look for efficient and eco-friendly viral disease-preventive measures. The genomic material of the majority of deleterious viruses of higher plants is RNA. One of the possible measures to control viruses is the use of ribonucleases (RNases), which can cleave RNA in the viral genome. Based on this, we investigated the RNase activity of endophytic Bacillus spp., which can enrich in 10 3 –10 5 colony-forming units per gram of wet mass of aboveground part of potato plants. A high level of RNase activity was observed in the culture medium of Bacillus thuringiensis B-6066, Bacillus sp. STL-7, Bacillus sp. TS2, and Bacillus subtilis 26D. B. thuringiensis B-5351 had low RNase activity but high ability to colonize internal plant tissues, Bacillus sp. STL-7 with high RNase activity have relatively low number of cells in internal tissues of plants. B. thuringiensis B-6066, B. subtilis 26D, and Bacillus sp. TS stimulate RNase activity in potato plants for a long time after application. Strains with high ability to colonize internal plant tissues combined with high RNase activity reduced severity of viral diseases symptoms on plants and reduced the incidence of potato viruses M, S, and Y. It is worth noting that Bacillus spp. under investigation reduced the number of Leptinotarsa decemlineata Say. egg clusters and larvae on treated plants and showed antifeedant activity. This results in increase of potato productivity mainly in the fraction of major tubers. B. subtilis 26D and Bacillus sp. TS2 combining endophytic lifestyle, RNase, and antifeedant activity may become the basis for the development of biocontrol agents for plant protection.

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Section: Introductionmentioning

confidence: 99%

Endophytic Bacillus spp. as a Prospective Biological Tool for Control of Viral Diseases and Non-vector Leptinotarsa decemlineata Say. in Solanum tuberosum L.

et al. 2020

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“…Microbial pesticides intended against a range phytopathogens including tea pests are an important component of integrated pest and disease management system in tea cultivation (Idris et al 2020). Several microbial species revealed in this metagenomics based study viz., Bacillus spp., Pseudomonas spp., Aspergillus sp., Beauveria bassiana, Gliocladium sp., Metarhizium anisopliae, Paecilomyces sp., Penicillium sp., Trichoderma spp., Lecanicillium, Streptomyces sp.…”

Section: Discussionmentioning

confidence: 95%

Niche differentiation of microbes and their functional signatures in Assam type tea (Camellia sinensis var. assamica)

Bora¹,

Dey²,

Borah³

et al. 2021

Preprint

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We employed an Illumina-based high throughput metagenomics sequencing approach to unveil the overall rhizospheric as well as endophytic microbial community associated with an organically grown Camellia population located at the Experimental Tea Garden, Assam Agricultural University, Assam (India). Quality control (i.e. adapter trimming and duplicate removal) followed by de novo assembly revealed the tea endophytic metagenome to contain 24,231 contigs (total 7,771,089 base pairs with an average length of 321 bps) while tea rhizospheric soil metagenome contained 261,965 sequences (total 230537174 base pairs, average length 846). The most prominent rhizobacteria belonged to the genus viz., Bacillus (10.34%), Candidatus Koribacter (8.0%), Candidatus Solibacter (6.35%), Burkholderia (5.18%), Acidobacterium (4.08%), Pseudomonas (3.9%), Streptomyces (3.52%), Bradyrhizobium (2.76%) and Enterobacter (2.56%); while the endosphere was dominated by bacterial genus viz., Serratia (42.3%), Methylobacterium (7.6%), Yersinia (5.4%), Burkholderia (2.2%) etc. The presence of few agronomically important bacterial genuses such as Bradyrhizobium (1.18%), Rhizobium (0.8%), Sinorhizobium (0.34%), Azorhizobium and Flavobacterium (0.17% each) were also detected in the endosphere. KEGG pathway mapping highlighted the presence of microbial metabolite pathway genes related to tyrosine metabolism, tryptophan metabolism, glyoxylate and dicarboxylate metabolism and amino sugar metabolism which play important roles in endophytic activities including survival, growth promotion and host adaptation.

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“…While many hymenopteran toxins, including the most well-known components of pompilid venoms, tend not to be stabilized by cystine-cystine bonds, this is far from a universal rule and others may yet be discovered. Additionally, pompilid venoms are specifically evolved to target arachnids: a number of mite species are significant pests and they are known to evolve resistance to previous pesticides relatively quickly [179][180][181][182][183][184]. Venoms have also been the source of a number of medications, most spectacularly snake coagulotoxins, which have been adapted or mimicked for a range of applications that include blood pressure medications, surgical anti-clotting drugs, and heart attack prevention [15,[185][186][187][188][189][190][191][192][193].…”

Section: Discussionmentioning

confidence: 99%

A Short Review of the Venoms and Toxins of Spider Wasps (Hymenoptera: Pompilidae)

Dashevsky

Rodríguez

2021

Toxins

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Parasitoid wasps represent the plurality of venomous animals, but have received extremely little research in proportion to this taxonomic diversity. The lion’s share of investigation into insect venoms has focused on eusocial hymenopterans, but even this small sampling shows great promise for the development of new active substances. The family Pompilidae is known as the spider wasps because of their reproductive habits which include hunting for spiders, delivering a paralyzing sting, and entombing them in burrows with one of the wasp’s eggs to serve as food for the developing larva. The largest members of this family, especially the tarantula hawks of the genus Pepsis, have attained notoriety for their large size, dramatic coloration, long-term paralysis of their prey, and incredibly painful defensive stings. In this paper we review the existing research regarding the composition and function of pompilid venoms, discuss parallels from other venom literatures, identify possible avenues for the adaptation of pompilid toxins towards human purposes, and future directions of inquiry for the field.

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Ecologically controlling insect and mite pests of tea plants with microbial pesticides: a review

Cited by 35 publications

References 44 publications

Endophytic Bacillus spp. as a Prospective Biological Tool for Control of Viral Diseases and Non-vector Leptinotarsa decemlineata Say. in Solanum tuberosum L.

Endophytic Bacillus spp. as a Prospective Biological Tool for Control of Viral Diseases and Non-vector Leptinotarsa decemlineata Say. in Solanum tuberosum L.

Niche differentiation of microbes and their functional signatures in Assam type tea (Camellia sinensis var. assamica)

A Short Review of the Venoms and Toxins of Spider Wasps (Hymenoptera: Pompilidae)

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