• Title/Summary/Keyword: F. moniliforme

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Biological Management of Virulent Fusarium Species on Asparagus with Avirulent Fusarium Species In Vitro (비병원성(非病原性) Fusarium균(菌)을 이용(利用)한 아스파라거스의 병원성(病原性) Fusarium균(菌)의 생물적(生物的) 방제(防除))

  • Lee, Youn-Su
    • Korean Journal of Environmental Agriculture
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    • v.13 no.3
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    • pp.288-300
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    • 1994
  • Fusarium oxysporum was isolated most frequently, followed by F. moniliforme, and F. solani from infected asparagus plants grown in the field. In pathogenicity tests both with seedlings and plantlets, F. moniliforme showed higher virulence than Fusarium oxysporum did in general. Fusarium moniliforme showed more consistent virulence on both seedlings and plantlets than F. oxysporum did. Fusarium oxysporum showed higher virulence on plantlets than on seedlings. Fusarium solani showed very weak or no sign of virulence on seedlings and plantlets, respectively, in both tests. In protection tests with plantlets, most protection of asparagus against virulent fusarial infections occurred when challenge isolates were inoculated five or seven days after inoculation of protective fusarial species. Avirulent F. oxysporum was a more effective protective agent against infection of F. moniliforme than it was against F. oxysporum. Fusarium solani was more effective against infection of F. oxysporum than it was against F. moniliforme.

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Rice Seed Infection of Fusarium spp. at Paddy Field and Selection of Seed Disinfectants (포장(圃場)에서 Fusarium속균(屬菌)의 종자(種子) 감염(感染)과 소독제(消毒劑)의 선발(選拔))

  • Sung, Jae-Mo;Lee, Eun-Jong;Yang, Sung-Suk
    • The Korean Journal of Mycology
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    • v.13 no.2
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    • pp.99-103
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    • 1985
  • F. roseum "Graminearum" and F. moniliforme were isolated from hulls of seeds collected from fields. F. roseum "Graminearum" was isolated from brown rice of all the varieties tested. F. moniliforme was isolated from Nagdongbyeo, Seomjinbyeo, Sinsunchalbyeo, Milyang 23, Baegyangbyeo and Samnambyeo. F. moniliforme was isolated from the most of the seeds damaged by sparrow and it formed sporodochia of this fungus. Five species including F. moniliforme were isolated from plant hopper collected from paddy fields in September. To select seed a disinfectant, twelve fungicides were tested and P242 was one of the best effective fungicidetested. After seed treatment with the fungicide, F. moniliforme was not isolated from hulls but was frequently isolated from brown rices.

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Effect of Seed Treatment and Observation of Seeds Infested with Fusarium moniforme by Scanning Electron Microscope (Fusarium moniliforme 감염벼종자의 소독과 주사전자현미경적 조직관찰)

  • Sung Jae Mo;Lee Soon Hyung;Yu Seung Hun;Shin Gwan Chull
    • Korean Journal Plant Pathology
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    • v.1 no.1
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    • pp.51-55
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    • 1985
  • This study was carried out to observe the propagule of Fusarium moniliforme on the surface of rice seed and in the vascular bundle of rice stem by scanning electron microscope. Spore and mycelium of F. moniliforme were observed on the surface of rice seed and in the vascular bundle of rice stem. After seed treatment with Benlate T and Busan 3D, F. moniliforme was not isolated from chaffs, but frequently from brown rice, irrespective of disinfection period.

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Soil-borne Diseases of Barley in Barley in Korea Caused by Fusarium spp. (한국에서의 Fusarium균에 의한 보리의 토양전염성병)

  • Sung Jae Mo;Snyder William C.;Chung Bong Koo;Chung Bong Jo
    • Korean journal of applied entomology
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    • v.16 no.2 s.31
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    • pp.115-119
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    • 1977
  • Fusarium spp. were isolated from field grown rice, wheat and barley in 1976. The pathogens isolated included Fusarium (Calonectria) nivale, F. (Gibberella) moniliforme and F. (Gibberella) roseum 'Graminearum' and 'Avenaceum'. Among the saprophytes F. (Nectria) episphaeria was isolated. In each of these isolated both the Fusarium and perfect stages were found. F. nivale, and F. episphaeria with there Calonectria, and Nectria stages do not seem to have been recorded previously in Korea. Of the Fusaria isolated, $66.3\%$ from rice were F. moniliforme, and $68.2\%$ from wheat and barley were F. roseum 'Graminearum'. Perithecia also were produced under laboratory conditions. F. moniiforme was recovered wheat heads and also from barley seed.

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Chromosomal Studies on the Genus Fusarium(I) (Fusarium속(屬)의 염색체(染色體)에 관한 연구(硏究)(I))

  • Min, Byung-Re
    • The Korean Journal of Mycology
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    • v.14 no.4
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    • pp.253-256
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    • 1986
  • Chromosome numbers were studied for three species of the genus Fusarium from observation of vegetative nuclear division in hyphae with aid of Giemsa-HCl techniques. It was confirmed that observation on the nuclear division could best be made at the growing hyphal tip and near the cells. The general shape of chromosome was dot-like form. The results confirmed that the chromsome number in n=8 in F. solani and F. moniliforme, and n=6 in F. cocophilum.

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Chromosomal Studies on the Genus Fusarium (Fusarium속의 염색체 분석)

  • 민병례
    • Korean Journal of Microbiology
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    • v.27 no.4
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    • pp.342-347
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    • 1989
  • by use of HCl-Giemsa technique and light microscope, dividing vegetative nuclei in hyphae of Fusarium species were observed and the results are summerized. The chromosome number of these fungi was ranged 4 to 8. Of the 20 strains, the highest haploid chromosome number is 8 in F. solani S Hongchun K4, F. moniliforme (from banana) and F. raphani (from radish). The lowest is 4 in F. sporotrichioides NRRL 3510 and F. equiseti KFCC 11843 IFO 30198. F. solani 7468 (from Sydney), F. solani 7475 (from Sydney), F. oxysporum(from tomato). F. roseum (from rice), F. sporotrichioides C Jngsun 1, F. equiseti C Kosung 1 and F. avenaceum 46039 are n=7. F. moniliforme (from rice) F. graminearum, F. proliferatum 6787 (from Syndey), F. proliferatum 7459 (from Synder) and F. anguioides ATCC 20351 are n=6. F. moniliforme NRRL 2284, F. poae NRRL 3287 and F. trincinctum NRRL 3299 are n=5. From these results, it may be concluded that the basic haploid chromosome number of the genus Fusarium is 4 and mat have been evolutionary variation of chromosome number through aneuploidy and polyploidy.

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Fusarium spp. Isolated from Seed, Root and Cultivated Soil of Phaseouls vidissimus and Their Pathogenicity (녹두종자, 뿌리와 녹두 재배토양에서 분리된 Fusarium spp.와 병원성)

  • Paik Su Bong;Do Eun Su
    • Korean Journal Plant Pathology
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    • v.3 no.1
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    • pp.8-12
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    • 1987
  • Fusarium oxysporum, F. moniliforme, F. solani, F. equiseti, F. semitectum, and F. sporotrichioides were detected from seeds, roots and cultivated soil of Phaseolous vidissimus collected from Kyung-gi Provincial Rural Development Administration. The rate of seedling desease incidence was $60\%$ by testing of seed germination using a large petri-dish. According to the blotter method, F. moniliforme showed $7\%$ infection at seed-coat and $2\%$ at cotyledon and embryo. Their pathogenicities of F. moniliforme, F. semitectum, F. equiseti, and F. sporotrichioides isolated from seeds were recognized on seedlings by water-agar test tube methods. F. oxysporum and F. solani isolated from infected-roots had their pathogenicity by water-agar test tube method but were weakly pathogenic by soil treatment method. Their pathogenicities of F. oxysporum. F. solani and F. uiseti isolated from cultivated-soil were recognized by water-agar test tube method. These F. oxysporum and equiseti isolates had their pathogenicities but F. solani was weakly pathogenic by soil treatment method.

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A Research on the Production of Fusarin C in Cereals during Storage by Fusarium moniliforme (곡류저장시 Fusarium moniliforme에 의한 Fusarin C 생성에 관한 연구)

  • 안명수;현영희;정태영;김덕숙
    • Korean journal of food and cookery science
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    • v.5 no.1
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    • pp.75-81
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    • 1989
  • Fusarin C, which had been produced in cereals by Fusarium moniliforme, was known as a mutagen. In this study, natural occurrences of fusarin C in 12 kinds of cereals grown in Korea, fusarin C production by F. moniliforme in cereal cultures, and the relation between fusarin C production and water activity were investigated. The results were obtained as follows; 1. Fusarin C was detected large amounts in rice, glutinous millet, sorghum millet, and corn obtained from Seoul markets randomly. But in cereals selected from Pyungtaik market, fusarin C was detected in barley and job's tears only. The amounts were much lower than those from Seoul markets. It was thought that keeping conditions of cereals during retailing period were very important factors to natural occurrences of fusarin C. 2. The amounts of fusarin C production were determined much more in rice and barley cultures with F. moniliforme. In this study, the facts are made clear that rice and barley had been more proper than corn to produce fusarin C by F. monilifome. 3. Water activity had more effect on fusarin C production in corn cultures than rice cultures. In corn cultures, water activity was higher, and the amounts of fusarin C production was larger. In case of high activity (Aw 0.85), the amounts of fusarin C was shown the largest in 1 week after then was decreased rapidly.

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Histopathological Observation and Identification of Fusarium spp. Causing Soybean Sporut Rot (콩나물 부패를 일으키는 Fusarium spp.의 동정과 병태조직학적 관찰)

  • 오병준;박원목
    • Korean Journal Plant Pathology
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    • v.12 no.4
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    • pp.471-475
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    • 1996
  • 콩나물의 생육부진과 부패는 콩나물 재배에 중요한 제한요인이다. 콩나물 부패 병원 진균으로 Fusarium moniliforme, F. oxysporum과 F. solani를 분리 동정하였다. 이들은 종자 발아 후 3∼5일이 지난후 콩나물의 중간 이하에 연한 갈색의 외부 병징을 만들며 발아 후 6∼7일 경에 병징이 더욱 진전하여 진한 갈색의 외부 병징을 나타냄으로써 콩나물에 대한 병원성이 인정되었다. Hand-section과 microtome-section에 의한 병태 조직학적 관찰에서 F. oxysporum 접종 후 4일이 경과하여 초기 병징을 보인 조직에서 균사가 피층, 세포간극, 목부, 사부, 수에 분포하고 있음이 관찰되었다.

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Toxicity and Fumonisin B1 Production by Fusarium Isolates from Chines Corn Samples (중국산 옥수수로부터 분리한 Fusarium균주의 독성 및 Fumonisin B1의 생성)

  • 이인원;강효중
    • Korean Journal Plant Pathology
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    • v.10 no.2
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    • pp.129-135
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    • 1994
  • Ninety-two isolates of Fusarium species were obtained from Chinese corn samples. The predominant Fusarium species isolated from corn seeds were F. moniliforme, F. proliferatum, F. oxysporum and F. subglutinans, and all 13 species were identified. Each isolate was grown on autoclaved wheat grains and wheat cultures were fed by twenty-one-day-old female rats for the toxicity test. Twenty-six out of 92 isolates caused the death accompanying feed refusal, severe weight loss, liver damage, and hemorrhages in the stomach and intestines. Of the toxigenic isolates, 17 isolates of F. moniliforme, 4 of F. oxysporum, 3 of F. proliferatum, and one of each F. sporotrichioides and unknown species were lethal to rats. The analyses of fumonisin B1 production of the 26 toxigenic Fusarium isolates were carried out by thin layer chromatography and high-performance liquid chromatography, and fumonisin B1 was confirmed by mass spectrometry. Fumonisin B1 was produced in wheat culture at levels ranging from 280 $\mu\textrm{g}$/g to 3,952 $\mu\textrm{g}$/g by all of toxigenic F. moniliforme and F. proliferatum, but by none of the other toxigenic Fusarium species. The present results suggest the high possibility of natural occurrence of fumonisin B1 in corn samples imported from China.

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