• 한국응용곤충학회지
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• 제58권4호
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• pp.363-380
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• 2019

기주범위가 넓은 미국선녀벌레에 대한 선행연구는 약충과 성충을 구분하지 않고 조사되었으나 본 연구에서는 발육단계를 약충단계와 성충단계로 구분하여 기주를 조사하였다. 미국선녀벌레 약충은 78과 227종의 기주에서 발견되었고, 27과 38종을 새롭게 기록하였다. 초본류와 목본류로 구분하였을 때 초본류에는 110종 목본류에는 117종을 기록하였다. 미국선녀벌레 성충은 87과 233종에서 발견되었고 26과 36종을 새롭게 기록하였다. 초본류와 목본류로 구분하였을 때 초본류에는 105종과 목본류에는 128 종을 기록하였다. 따라서, 약충과 성충을 포함하여 미국선녀벌레의 국내 기주는 총 98과 345종 이었다. 미국선녀벌레 약충과 산란전단계의 성충은 국화과의 해바라기를 특이하게 선호하였고, 산란단계의 성충은 쪽과 해당화를 선호하였다.

• 한국응용곤충학회지
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• 제36권2호
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• pp.156-165
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• 1997

다식성 산림해충인 주동무늬차색풍뎅이(Adoretus tenuimaculatus Waterhouse)의 기주식물과 기주선호도를 조사한 결과, 야외조사에서는 25과 66종류의 식물을 가해하는 것으로 밝혀졌고, 먹이공급 실험을 통하여는 5과 14종의 식물을 식해하는 것으로 나타나 문헌상에 있는 32과 136종류의 기주식물을 합하면 주둥무늬차색풍뎅이의 기주식물은 총 42과 186종류가 되었다. 이들 중 새로 밝혀진 기주식물은 19과 50종이었다. 한편, 15과 39종의 식물을 대상으로 기주선호도를 조사한 결과, 가장 많이 유인된 것은 호두나무(Juglans sinensis)였으며, 가장 많이 식해한 식물은 밤나무(Castanea crenata)였다. 유인율과 피해도가 높은 수종들은 밤나무, 아까시나무(Robinia pseudoacasia), 아그배나무(Malus sieboldii), 호두나무, 신갈나무(Quercus mongolica), 갈참나무(Q. aliena)였다. 그러나 고욤나무(Diospyros lotus), 혹호도(Juglans nigra), 들메나무(Fraxinus mandshurica), 물푸레나무(F. rhynchophylla), 파란칸타(Pyracantha angustifolia), 오동나무(Paulownia Coreana), 팽나무(Celtis sinensis)등에는 전혀 유인되지 않았다. 동일 종류의 식물일지라도 지역에 따라 주둥무늬차색풍뎅이가 가해하였던 것과 가해하지 않았던 경우가 있었으며, 피해 정도도 지역과 시기에 따라 차이가 있었다.

• The Plant Pathology Journal
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• 제37권5호
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• pp.494-501
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• 2021

Pseudomonas cichorii secretes effectors that suppress defense mechanisms in host plants. However, the function of these effectors, including avirulence protein E1 (AvrE1), in the pathogenicity of P. cichorii, remains unexplored. In this study, to investigate the function of avrE1 in P. cichorii JBC1 (PcJBC1), we created an avrE1-deficient mutant (JBC1^ΔavrE1) using CRISPR/Cas9. The disease severity caused by JBC1^ΔavrE1 in tomato plants significantly decreased by reducing water soaking during early infection stage, as evidenced by the electrolyte leakage in infected leaves. The disease symptoms caused by JBC1^ΔavrE1 in the cabbage midrib were light-brown spots compared to the dark-colored ones caused by PcJBC1, which indicates the role of AvrE1 in cell lysis. The avrE1-deficient mutant failed to elicit cell death in non-host tobacco plants. Disease severity and cell death caused by JBC1^ΔavrE1 in host and non-host plants were restored through heterologous complementation with avrE1 from Pseudomonas syringae pv. tomato DC3000 (PstDC3000). Overall, our results indicate that avrE1 contributes to cell death during early infection, which consequently increases disease development in host plants. The roles of PcJBC1 AvrE1 in host cells remain to be elucidated.

• 아시안잔디학회지
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• 제12권1호
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• pp.1-16
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• 1998

Vegetation of golf courses and local difference of feeding host plants of brown chafer, Adoretus tenuimaculatus Waterhouse(Coleoptera: Scarabaeidae) were investigated in golf courses. Yongwon country club in Chinhae and Tongdo country club in Yangsan Gyeongnarn, Dongrae Benest golf club in Kumjeunggu Pusan and Daegu country club in Gyeongsan Gyeongbuk province from 1995 to 1997. Vegetation and species of feeding host plant were different depending on observed place. Damaged rate of host plants were concerned with ornamental trees and natural growing host plants, and Oenothera odorata, Achyranthes japonica, Aralia elata, Viburnum awabuki, Chenapadium album var. cent rorubrum, Cornus officinalis, and Rhododendron mucronulatum were newly recorded as host plant of A. tenuimaculatus in this study. Thus, host plants of A. tenuimaculatus were 193 kinds in 48 families. Key words: Brown chafer, Adoretus tenuimaculatus, host plant, vegetation, insect-plant interaction, biological control, golf courses.

• Mycobiology
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• 제50권6호
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• pp.399-407
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• 2022

Endophytic fungi occupy inner plant tissues, which results in various interactions between the fungus and host. Studies on endophytic fungi have been conducted in Korea for over 30 years. This paper summarizes the published results of those studies. The endophytic fungi of approximately 132 plant species in Korea have been studied since the 1990s, resulting in over 118 publications. The host plants featured in these studies comprised 3 species of mosses, 34 species of woody plants, and 95 species of herbaceous plants. At the family level, the most studied plants were members of the Poaceae family, covering 18 species. Regionally, these studies were conducted throughout Korea, but over half of the studies were conducted in Gyeongsangbuk-do, Gangwon-do, and Chungcheongnam-do. Relatively few studies have been conducted in a metropolis such as Seoul. We confirmed 5 phyla, 16 classes, 49 orders, 135 families, 305 genera, and 855 taxa of endophytic fungi, excluding Incertae sedis, whose relationship with others are unknown. Most of the endophytic fungi belonged to Ascomycota (93.2%), and a few belonged to Basidiomycota (3.6%). Since the diversity of endophytic fungi differs depending on the host plant, plant tissue, and distribution region, future studies should be conducted on multiple host plants and in various regions. Future studies on endophytic fungi are expected to broaden, including genomics and taxonomic and ecological studies of secondary metabolites.

• International Journal of Industrial Entomology and Biomaterials
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• 제27권2호
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• pp.243-264
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• 2013

Antheraea mylitta Drury is a commercial silk producing forest insect in India and Xanthopimpla pedator Fabricius is its larval-pupal endoparasitoid, which causes pupal mortality that affects seed production. Effects of host plants, rearing season and their interactions on parasitic behaviour of X. pedator were studied here, as influence of these factors on biological success of X. pedator is not known. Seven forest tree species were tested as food plants for A. mylitta, and rate of pupal parasitization in both the rearing seasons were recorded and analysed. Results showed that rearing season and host plants significantly affected the rate of pupal parasitization in both the sexes. Pupal mortality was found significantly higher (14.52%) in second rearing season than the first (2.89%). Likewise, host plants and rearing seasons significantly affected length, diameter, and shell thickness of cocoons in both sexes. Out of all infested pupae, 85.59% were found male, which indicated that X. pedator chooses male spinning larva of A. mylitta for oviposition, but we could not answer satisfactorily the why and how aspect of this sex specific parasitic behaviour of X. pedator. Multiple regression analysis indicated that length and shell thickness of male cocoons are potential predictors for pupal parasitization rate of X. pedator. Based on highest cocoon productivity and lowest pupal mortality, Terminalia alata, T. tomentosa, and T. arjuna were found to be the most suitable host plants for forest based commercial rearing of A. mylitta in tropical forest areas of Uttarakhand state, where it has never been reared earlier. Sex and season specific interaction of X. pedator with its larval-pupal host, A. mylitta is a novel entomological study to find out explanations for some of the unresolved research questions on parasitic behaviour of X. predator that opens a new area for specialised study on male specific parasitization in Ichneumonidae.

• 한국응용곤충학회지
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• 제31권2호
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• pp.139-143
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• 1992

벼멸바구미의 성충과 유충가해식물을 조사하였다. 성충 가해식물은 18과 116종의 조사대상 식물중 13과 104종의 식물이 확인되었으며, 이 중 74종은 성충기주식물로 처음 확인되었다. 주요 성충가해식물은 개밀, 새, 띠, 꿩의밥 등 20종이었다. 이들은 대부분이 화본과와 사초과에 속하는 것이었다. 한편, 유충가해 잡초는 너도방동사니, 올방게, 올미, 벗풀 등 9종이 확인되었다.

• International Journal of Industrial Entomology and Biomaterials
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• 제29권1호
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• pp.93-119
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• 2014

Tropical tasar silkworm, Antheraea mylitta (Lepidoptera: Saturniidae) is a polyphagous silk producing forest silkworm of commercial importance in India. Forest dependent people rear its larvae on different forestry host plants twice or thrice in a year for small household income. Larvae of A. mylitta feeds on many forest tree species, but always show a great degree of selectivity as a function of its behavioural responses to physical structure and chemical features of the host plants. Cocoon crop of A. mylitta is influenced by heterogeneity of tasar food plants and climatic conditions of the habitat. The role of host plants, temperature, humidity, rainfall, photoperiod and climatic variables on the growth and development of insects have clearly been demonstrated. This article entails an in-depth analysis on ecological and nutritional aspects of A. mylitta, which may provide selective information to researcher and forest managers, who are particularly associated with livelihood improvement of the poor people in forested area through location specific forest insect industry.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제5권2호
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• pp.68-70
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• 2024

The genus Charops is one of the small genera of the subfamily Campopleginae with 30 species reporded worldwide. All of the known host insects of Charops striatus belong to the lepidopteran family Zygaenidae, perceived as harmful. C. striatus, one of the endoparasitoids from Elcysma westwoodi, is the most damaging lepidopteran pest of Prunus yedoensis. In South Korea, host plants of C. striatus were reported by Choi & Lee in 2008. In this paper, two new host plants, Crepidiastrum denticulatum and Zea mays, of Charops striatus are reporded for the first time from South Korea. Digital images and redescription of this species are provided.

• 한국균학회지
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• 제22권3호
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• pp.229-246
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• 1994

1989년부터 1993년까지 5년간 강원도지방에서 횐가루병균에 감염된 246종의 식물을 채집하였는데, 이는 강원도에서 알려진 피자식물 1,475종의 약 16.7%에 해당한다. 흰가루병균은 12속(屬) 83종(種)이 동정(同定)되었는데, Arthrocladiella 속이 1종, Blumeria 속이 1종, Cystotheca 속이 1종, Erysiphe 속이 25종, Leveillula 속이 1종, Microsphaera 속이 17종, Phyllactinia 속이 7종, Podosphaera 속이 3종, Sawadaia 속이 3종, Sphaerotheca 속이 9종, Uncinula 속이 10종, Uncinuliella 속이 2종 등 12속 80종이었으며, 무성세대명만 확인된 Oidium 속은 3종이었다. 각 기주식물은 대개 1종의 흰가루병균에 감염당하였으나, 물오리나무에서는 3종의 흰가루병균이 확인되었고, 갈참나무, 떡갈나무, 졸참나무, 뽕나무, 찔레꽃, 방가지똥 및 이고들빼기에서는 2종의 흰가루병균이 확인되었다. 한편 무궁화에서 채집된 흰가루병균은 지금까지 무궁화속 식물에서 알려진 5종의 흰가루병균과 다른 형태학적 특징을 나타내어 별도로 기재하였으며, 국화과(科)에 속하는 쇠서나물, 미역취, 큰방가지똥, 방가지똥, 그리고 이고들빼기에서 채집된 흰가루병균은 이들 식물에서 기보고된 몇몇 Oidium spp.와 비교하여 형태학적 특징을 검토하였다. 이 보고로 우리나라의 흰가루병 기주식물은 총 333종으로 늘어났으며, 총 피자식물의 약 11.4%에 해당된다.