• Title/Summary/Keyword: Leaf gall

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Studies on Eriophyes kuko Kishida and its Galls III. Quantitative Changes of Nucleic Acid in Growing Galls (구기자혹응애(Eriophyes kuko Kishida) 및 그 혹에 관한 연구 III. 혹의 성장에 따르는 핵산함량의 변동)

  • Kim Chang Hyo
    • Korean journal of applied entomology
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    • v.10 no.2
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    • pp.103-107
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    • 1971
  • In this report, an experiment has been conducted to test the quantitative changes of nucleic acids in the nuclei of the epidermal cell of the galls, caused by Eriophyes kuko Kishida on the leaf of Lycium chinense Mill by means o( microspectrophotometric techniques, the two-wave-length methods. And the sizes of the epidermal cells and nuclei have been measured. The experimental results were summarized as follows: 1) It has been found that as the gall grows, the diameter of the epidermal cells and their nuclei increased and they were larger than those of tile healthy ones. 2) Microspectrophotometric measurement of nuclei by the 'Two-wave-length method' after staining with Feulgen reagent showed no changes in DNA content in the early stage of the gall. As the gall matured, however, DNA content of the gall increased more than that of the healthy leaf. 3) RNA-measurement of nuclei stained with Azur-B in DNase treated epidermal cells of the gall revealed that temporary increase in RNA content occurred in early to middle stages after the gall formation. As the gall matured, however, RNA content of the gall decreased more as against that of the healthy leaf.

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First Report of Dandelion Leaf Gall Midge, Cystiphora sp. (Diptera: Cecidomyiidae), from Korea (한국에서 Cystiphora 속의 민들레잎혹파리(신칭) 발견 보고)

  • Lee, Heung Sik;Lee, Hee A;Lee, Young Su
    • Korean journal of applied entomology
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    • v.59 no.1
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    • pp.23-24
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    • 2020
  • ecently, dandelion leaf-gall midge of the genus Cystiphora, forming reddish-purple round bumps on dandelion (Taraxacum spp.) have been reported for the first time in Gyeonggi-do, Korea. Therefore, we report the observed area, damage pattern, and morphological characteristics of developmental stages.

Studies on Eriophyes kuko KISHIDA and its Galls. IV. Studies on the Growing Mite Gall under Light and Electron Microscopes (구기자혹응애 (Eriophyes kuko KISHIDA) 및 그 혹(Gall)에 관한 연구. IV. 혹의 성장에 따르는 광현적(光顯的) 및 전현적(電顯的) 관찰)

  • Kim, Chang-Hyo;Sigenobu, Kawamatu;So, In-Yung
    • Applied Microscopy
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    • v.2 no.1
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    • pp.17-31
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    • 1972
  • Light and electron microscopic studies were made to investigate the morphological changes in growing galls on the leaf of Lycium chinense MILL caused by Eriophyes kuko Kishda. The results are summarized as follows: 1. Light microscopy At the early stage of the invasion of E. kuko on the back side of the young leaf of L. chinense, the.epidermal cells become hypertrophic and develope a gall. As the gall grows, the cells of both palisade and spongy-layers become hypertrophic and these tissues are hard to be distinguished because of their irregular outgrowth. As the gall grows, the nuclei of the gall also become hypertrophic and larger than these of normal cells. 2. Electron microscopy Under electron microscopy the mitochondria, the golgi apparatus and the plastids of the advanced galls are degenerated and disintergrated and the cell walls become thicker than normal ones. The characteristic star bodies and the ring-form structures are found in the mature gall cells.

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Bionomics of Gall-Forming Paracolopha morrisoni(Aphidoidea: Homoptera) (충영을 형성하는 외줄면충 (진딧물상과: 매미목)의 생태)

  • 이원구;황창연
    • The Korean Journal of Ecology
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    • v.22 no.1
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    • pp.31-37
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    • 1999
  • The developmental process of Paracolopha morrisoni's galls on Zelkova serrata until the emergence of alatae from the galls was studied at Chonju, Korea. The galls were formed from late April to early May, 1997 and the galls began to open in early June. The length and width of galls and leaves were measured during the period from gall formation to opening. The length and width of galls have been increased until mid May continuously. The galls stopped growing at 12th of May. Fundatrices (the first generation in the gall) began to larviposit from May 15th and the second generation developed in late May. The alatae of the second generation arrived at the final stadium, that was escaped from the gall, in early June. Thus, there were only 2 generations in the gall. The close correlationship between gall growth and leaf growth suggests that leaf growth force may have a great influence on gall development.

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Leaf Gall of Rhododendron indicum Caused by Exobasidium japonicum in Korea (Exobasidium japonicum에 의한 영산홍 떡병)

  • Kwon, Jin-Hyeuk;Chae, Yun-Seok
    • Research in Plant Disease
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    • v.12 no.3
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    • pp.284-286
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    • 2006
  • Leaf gall was occurred on Rhododendron indicum(L.) Sweet[=Azalea indica L.] in a farmer's garden located in Geumsan-myon, and along the walk way of Gangju pond in Jeongchon-myon, Jinju, Korea. The infected leaves was deformed into very conspicuous, pale, fleshy shapeless galls. Basidia were fusiform, $3{\sim}5$ sterigma, and $8{\sim}35{\times}3{\sim}6{\mu}m$ in size. Basidiospores were musiform, straight or curved and $10{\sim}22{\times}3{\sim}5{\mu}m$ in size. The causal organism was identified as Exobasidium japonicum Shirai based on the mycological characteristics of the fungus and pathogenicity. This is the first report on the leaf gall of R. indicum caused by E. japonicum in Korea.

Study on Formation and Development of Schlechtendalis chinensis Gall in Rhus javanica (붉나무(Rlus javanica)에서 오배자 형성과 발육에 관한 연구)

  • 이상명;이동운;박지두;김종인
    • Korean journal of applied entomology
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    • v.36 no.1
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    • pp.83-87
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    • 1997
  • These studies were conducted to carry out mechanism and site of gall formation by Schlectendalia chinensis in Rhus javanica. The formation period of gall hy occurrence of fundatrix was middle of June, and fundatrix was settled and parasited on back side of immature leaves and tissues of Rhus javanica was ride to fore face, then formed Schlectendalia chinensis gall. Scl~lectendalia chinensis was suddenly developed in middle of Auguest. As the density of Schlectertdalia chinensb increases, the Schlectendalia chinensir gall was more plumped. The part of phyllotaxy of Schlectendalia chinensis gall in leaf and pinnate of was increased in closer pan of terminal leaflet and leaflet was more occupied then wing.

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Studies on the Population Dynamics of Pine Needle Gall Midge, Thecodiplosis japonensis, by Diversity of Vegetation Structure (식생구조에 따른 솔잎흑파리개체군 동태에 관한연구)

  • Ri, Chong Un
    • The Korean Journal of Ecology
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    • v.6 no.1
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    • pp.33-44
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    • 1983
  • Vegetatiion structure and population dynamcis of pine needle gall midge were investigated from 1980 to 1982 at the southern part of Palgong mountain near Daegu. The results of investigation at the areas of A (pure stand), B(30% mixed forest) adn C(60% mixed forest) were as follow; Vegeation of 3 areas were not classified by the species diversity, but by the unequal distribution of Alnus hirsuta, Robinia pseudo-acacia, Lespedeza cyrtobotrya, Quercus variabilis and vitality of Pinus densiflora at the area C was low, due to shadow by broad-leaf trees. Soil environmental factors at 3 areas not characteristic, but the average of humus contents showed high significance and the order was A

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Biochemical Changes in the Hemolymph of the Larvae of Thecodiplosis japonensis Uchi. et Inouye (솔잎혹파리 유충 체액의 생화학적 변화)

  • Lee Kyung-Ro;Lee Jong-Jin
    • Korean journal of applied entomology
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    • v.15 no.4 s.29
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    • pp.169-178
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    • 1976
  • The concentration of amino acids, total nitrogen, trehalose, lipids and the activities of respiratory, acid$\cdot$alkaline phosphatase, glutamic oxalozcetic transaminase and glutamic pyruvic transaminase during larval stage in Pine leaf gall midge, Thecodiplosis janensis Uchi. et Inouye were measured using Paper chromatographic method, micro-Kjeldahl method, Thin layer chromatographic method, Warburg's manometric method, Bessey-Lowry method and Reitman-Frankel method, respectively. Healthy specimens )yore chosen as samples of each larval stages; alrva in gall and larva in soil. Amino acids present in the alcoholic extracts were alanine, glutamic acid, glycine, histidine, methionine, proline, threonine, tryptophan and valine. The total nitrogen concentration reached to 31.348mg/g during the larva in gall and the larval stage in soil of the value was decreased to 29.027mg/g. The hemolymph sugar, trehalose value for larva in soil was about two times of the value for larva in gall. Total lipid, phospholipid,monoacylglycerol, triacylglycerol, sterol, free fatty acid and ester cholesterol were identified at larval stages in gall and soil. Triacylglycerol concentration reached high level in contrast with other lipid contents during larvae in gall and larva in soil. Free fatty acid, sterol except decreased lipids during larval stage in soil. Endogenous respiration, succinate of respiratory activities decreased at larval stage in soil compare with larva in gall. The activities of acid phosphatase decreased larval stage in soil but the activities of alkaline phosphatase increased remarkably. The activities of glutamic oxaloacetic transaminase and glutamic pyruvic transaminase reached high level of the larva in gall.

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Gall formation on different age, habitat, and parasite position in Rhus javanica L. (붉나무의 수령, 서식지 및 기생위치에 따른 오배자 형성)

  • Jo, Hyeong-Chan;Han, Kwang-Soo;An, Eun-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.8 no.4
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    • pp.304-311
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    • 2000
  • This study was conducted to investigate the ratio and number of the Rhus javanica gall formed by chinese sumac aphid, Scheleechtendalia chinensis, in several different conditions in which R. javanica lives. The density of 11 to 15-year-old R. javanica was more higher and the number of galls was also higher than 1 to 5- or over 16-year-old one at these sites. The formed gall according to four directions such as the East, West, South and North was founded the highest at the East and followed South, North, and West order. The formative rate of R. javanica gall did not differ in the mixture forest, and in the habitat having a heap of a little stone and mosses near a valley was better than in the site of road perimeter. Through an index of the gall diameter and the number of chinese sumac aphid, we evaluated the gall processing and development formed by the aphid. As the density of aphids increase, the size of the gall was also more plumped. The part of phyllotaxy of R. javanica gall in leaf and pinnate of was increased in the middle and upper part of terminal leaflet and leaflet was more occupied than wing. R. javanica which did not form a gall in natural environmental, formed gall by a artificial inoculation of S. chinensis. Some gall disappeared during a gall development from various environmental conditions.

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Natural Dyeing of Fabrics with Guava (Psidium guajava L.) Leaf Extract II - Dyeability and Functional Property of Cotton Fabrics - (구아바 잎 추출액을 이용한 직물의 천연염색(II) - 면직물의 염색성과 기능성 -)

  • Han, Mi-Ran;Lee, Jeong-Sook
    • Fashion & Textile Research Journal
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    • v.14 no.2
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    • pp.320-330
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    • 2012
  • The natural dyeing of cotton fabrics with guava leaf extract was investigated. The temperature and time of dyeing are $40^{\circ}C$ and $90^{\circ}C$ for eighty minutes, respectively. In addition, the dyebath has been set at pH 5. Sn pre-mordanted fabrics showed the highest K/S value. Regardless of dyeing temperature, K/S values were high when Al, Cu, Fe-mordanted fabrics were dyed in post-mordanting and Sn-mordanted fabrics were dyed in pre-mordanting. The K/S value of dyeing fabrics could be increased with repetitive dyeing and mordanting. Compared to untreated dyed fabrics, the K/ S values of fabrics which had been treated with soybean milk, chitosan and gall nut tannin were increased. The changed surface colors of fabrics that were treated with soybean milk, chitosan and gall nut tannin were Y, YR and achromatic colors. Fabrics dyed with alkaline water extract showed reddish color. Sn-mordanted fabrics dyed with acidic water extract showed vivid yellowish color, and Cu-mordanted fabrics dyed with ethanol extract showed yellowish green color. In case of Sn-mordanted fabrics, the washing fastness was level 4. The dry cleaning fastness also showed very excellent result with level 4-5. The rubbing fastness was better in dry rubbing than in wet rubbing of the fabrics. For the light fastness, all dyed fabrics showed low fastness. For antibacterial activity, the powder of guava leaf extract and the dyed fabrics with guava leaf extract showed 99.9% of high antibacterial activity. All dyed fabrics showed higher deodorization and UV protection rate than control fabric.