Complete mitochondrial genome of a latent wild oak tasar silkworm,<i>Antheraea frithi</i>(Lepidoptera: Saturniidae)

Shantibala, T.; Devi, Kshetrimayum Miranda; Lokeshwari, R. K.; Anju, S; Luikham, Reeta

doi:10.1080/23802359.2017.1413290

Cited by 8 publications

(6 citation statements)

References 6 publications

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“…Apart from Ceratocystis manginecans, which has a wide distribution across South and Southeast Asia [86,87], and Batocera lineolata, which is a pest in forest plantations in southern China [52], probably all the species of concern are native in Indo-China. Some of the insect pests have broader natural geographical ranges in Asia [59,88], and some have become invasive alien species. Some wood borers and bark beetles have been distributed around the world, such as B. lineolata in India [89] and Europe [90], Euwallacea fornicatus in Indonesia [51] and the USA [31], and Tapinolachnus lacordairei in Indochina and Borneo [70].…”

Section: Discussionmentioning

confidence: 99%

New and Emerging Insect Pest and Disease Threats to Forest Plantations in Vietnam

Thu

Quang

Minh

et al. 2021

Forests

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The planted forest area in Vietnam increased from 3.0 to 4.4 million hectares in the period 2010–2020, but the loss of productivity from pests and diseases continues to be a problem. During this period, frequent and systematic plantation forest health surveys were conducted on 12 native and 4 exotic genera of trees as well as bamboo across eight forest geographic regions of Vietnam. Damage caused by insects and pathogens was quantified in the field and laboratory in Hanoi. The threats of greatest concern were from folivores (Antheraea frithi, Arthroschista hilaralis, Atteva fabriciella, Hieroglyphus tonkinensis, Lycaria westermanni,Krananda semihyalina, and Moduza procris), wood borers (Batocera lineolata, Euwallacea fornicatus, Tapinolachnus lacordairei, Xyleborus perforans, and Xystrocera festiva), sap-sucking insects (Aulacaspis tubercularis and Helopeltis theivora) and pathogens (Ceratocystis manginecans, Fusarium solani, and Phytophthora acaciivora). The number of new and emerging pests and pathogens increased over time from 2 in 2011 to 17 in 2020, as the damage became more widespread. To manage these pests and diseases, it is necessary to further invest in the selection and breeding of resistant genotypes, improve nursery hygiene and silvicultural operations, and adopt integrated pest management schemes. Consideration should be given to developing forest health monitoring protocols for forest reserves and other special-purpose forests.

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Section: Discussionmentioning

confidence: 99%

New and Emerging Insect Pest and Disease Threats to Forest Plantations in Vietnam

Thu

Quang

Minh

et al. 2021

Forests

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“…Culture-dependent methods screen only a few predominant bacteria genera and cannot detect bacterial genera with low abundance. The 16S rRNA gene is often used as a marker for identifying the diversity of bacterial species in insect gut microbiota [14]. Notably, the gut microbiota is involved in the health and nutrition of these important silkworms.…”

Section: Introductionmentioning

confidence: 99%

“…However, information on the gut bacterial communities of many silkworms in a diseased state, including A. proylei, is limited. The molecular characterization of gut microbiota regarding this economically significant silk moth remains less explored, and only a handful of DNA sequences are available [14,15]. Additionally, very little is known about the effects of pathogens, their nutrient utilization, and the disease emergence of the silkworm in its gut microbiota.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Gut Microbiota between Midgut of Healthy and Tiger Band Disease Infected Oak Tasar Silkworm, Antheraea proylei J

Devi¹,

Lourembam²,

Modak³

et al. 2022

Entomol Appl Sci Lett

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Antheraea proylei J., an economically significant silkworm in the Northeastern region of India, is exclusively domesticated for Tasar silk production. This silkworm is susceptible to various diseases caused by bacteria, viruses, and fungi, including the recently dreadful viral disease dubbed tiger band disease. This viral infection causes damage to silkworm larvae affecting cocoon production, which causes significant losses to the economy of the silk industry. The gut microbiota plays a crucial role in host nutrition and immunity against various pathogens. However, less information is available on the diversity and ecology of the gut microbiota of this tasar silkworm. In the present study, we analyze molecular characterization and histopathological examination of gut-associated bacteria of healthy and diseased silkworms. We observed a loss of turbidity, lumen distortion, and insignificant secretory layer in diseased silkworms compared to healthy silkworms. Also, body fat becomes vacuolated and soft when compared to healthy silkworms. Results of 16S rRNA gene sequencing reveal Bacillus toyonensis and Bacillus thuringiensis as abundant bacterial genera in healthy larvae, whereas Bacillus aryabhattai and Bacillus megaterium were found in diseased larvae. To the best of our knowledge, this is the first attempt to study A. proylei midgut microbiota from a biodiversity hotspot in North-Eastern India. The current study might provide valuable insights into understanding the disease prognosis of tasar silkworms and potential disease management strategies for these economic silkworms.

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“…However, information on the gut bacterial communities of many insects, including A. proylei is limited. The molecular information regarding this economically important silk moth remains severely limited till date and only a handful of DNA sequences are available (Shantibala, Devi, Lokeshwari, Anju, & Luikham, 2018;Yang et al, 2019). Additionally, very little is known about the effects of pathogens, its nutrient utilization and disease emergence of silkworm in its gut microbiota.…”

Section: Introductionmentioning

confidence: 99%

Assessment of gut microbiota associated with oak tasar silkworm, Antheraea proylei J. (Lepidoptera: Saturniidae)

Devi

Lourembam

Shantibala

et al. 2020

Preprint

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Antheraea proylei J, is an economically important silkworm of North Eastern region of India reared for the production of the tasar silk. The silkworm is often exposed to various microbial diseases caused by bacteria and viruses. The disease causes significant damage to larvae and elicit pupal mortality, thus posing a serious threat to the linked economic activities. The gut microbiome of silkworms play an important role, in nutrient acquisition and immunity. In this study, we have reported molecular characterization and histopathological assessment of gut associated bacteria of healthy and diseased tasar silkworms. As compared to healthy silkworms, diseased infected silk glands shows loss of turbidity, secretory layer not distinguishable to tunica propria and lumen distorted. Both secretory and absorptive cells were found to be hypertrophied. Body fat becomes vacuolated and soft when compared to the healthy silkworms. Bacterial profile of healthy and diseased silkworm respectively was identified by 16S rRNA gene sequencing and analysis. Bacillus toyonensis and Bacillus thuringiensis were commonly found in healthy larvae whereas Bacillus aryabhattai and Bacillus megaterium were found in diseased larvae. The family Bacillus of phylum Firmicutes was dominant in both healthy and diseased silkworms. To the best of our knowledge, this is the first attempt to study A. proylei midgut microbiota from a biodiversity hotspot in North Eastern India. The present study might be helpful in disease prognosis and further comprehensive analysis on midgut microflora may lead towards the development of effective strategies for management of these economic silkworms.

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Complete mitochondrial genome of a latent wild oak tasar silkworm,Antheraea frithi(Lepidoptera: Saturniidae)

Cited by 8 publications

References 6 publications

New and Emerging Insect Pest and Disease Threats to Forest Plantations in Vietnam

New and Emerging Insect Pest and Disease Threats to Forest Plantations in Vietnam

Comparison of Gut Microbiota between Midgut of Healthy and Tiger Band Disease Infected Oak Tasar Silkworm, Antheraea proylei J

Assessment of gut microbiota associated with oak tasar silkworm, Antheraea proylei J. (Lepidoptera: Saturniidae)

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