• Title/Summary/Keyword: Lotus corniculatus

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Isolation and Characterization of Ilhizobium loti from Lotus corniculatus var. japonicus (벌노랑이로부터 Rhizobium loti 의 분리 동정 및 그 특성)

  • 소병인;이강련;윤경하;고상균;이영록
    • Korean Journal of Microbiology
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    • v.30 no.6
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    • pp.450-455
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    • 1992
  • Five strains of the fast-growing endosymbionts were isolated from the nodules of Lotus eorniculatus var. japonicus inhabited in Taejeon. From morphological and physiOlogical characteristics and nodulation test, the isolated strains were identified as Rhizobium loti. Compared to the control plant, both Lotus cornieulatus var. japonieus and Lotus corniculatus seedlings inoculated with the isolated strains. grew normally due to effective root nodule. The reisolated endosymbiont from the induced root nodule was confirmed identical to those of the first isolates by investigating antibiotic resistance and morphological characteristics. Three strains among the isolates. R. loti TUS I. TUS5 and TUS6 produced a ca1cof1uorbinding exopolysaccharide.

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Study on Experimental Construction Monitoring for Revegetation on the Slope of an Expressway - Follow-up Study on the Experimental Area of Revegetation, the Slope of Dangjin Daejeon Expressway (Seosejong IC), Four Years after the Construction - (고속도로 비탈면 녹화 시험시공지 조사 연구 - 당진대전선 서세종 IC 비탈면 녹화 시험시공지에 대한 시공 4년 후 시점의 추적조사 -)

  • Jeon, Gi-Seong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.19 no.6
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    • pp.123-132
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    • 2016
  • The study was to introduce the revegetation measures for the improvement of the landscape in October, 2012 on the slope; two and four years after the introduction, the slope was examined to see the status of the revegetation. The result is as follows. The result from examining the soil on the slope, the soil was Loamy sand; which infers that the soil is in a poor condition for improving the scenery. Examining the characteristics of the vegetation-base materials, the soil acidity was pH 6.4 to 6.7; and the soil hardness was 21 to 24mm (hardness quotient of soil), this can be considered a favourable condition, which has no effect on the growth and development of plants. When it comes to the discovery of the species in the area, Lotus corniculatus var., Silene armeria L., Papaver rhoeas, Trifolium pratense L. developed and grew in spring after two years. And in the summer, Lotus corniculatus var., Dianthus chinensis L., Cosmos bipinnatus, Coreopsis drummondii L., Trifolium pratense were founded. And there were Lotus corniculatus var., Dianthus chinensis L., Aster yomena, Coreopsis tinctoria, Trifolium pratense L. in the autumn. According to the examination conducting after four years, Lotus corniculatus var., Dianthus chinensis L., Silene armeria, Cosmos bipinnatus, Coreopsis drummondii L., Papaver rhoeas, Trifolium pratense L. were founded in the spring, and Lotus corniculatus var., Dianthus chinensis L., Cosmos bipinnatus, Coreopsis drummondii L., Trifolium pratense grew in the summer. Lotus corniculatus var., Dianthus chinensis L., Astragalus sinicus, Aster yomena, Coreopsis tinctoria, Trifolium pratense L. were discovered in the autumn. Among the exotic species founded in the area, were Festuca arundinacea, Lolium perenne, Festuca rubra. When it comes to the protection of vegetation and dominance, Lotus corniculatus var., Metaplexis japonica, Coreopsis drummondii L. are the dominant species among the spring plants; and Lotus corniculatus var., Trifolium repens L., Erigeron annuus (L.) Pers. were the dominant plants in the summer. In the autumn, Lotus corniculatus var., Coreopsis drummondii L., Poa pratensis appear to be the dominant plants. The colonies of Pinus densiflora and Castanea crenata var. were formed around the South Sejong IC. Part of the area is occupied by the colony of Alnus hirsuta Turcz. ex Rupr. In terms of shrub, there were Indigofera pseudo-tinctoria, Robinia pseudoacacia, and Rosa polyantha var. genuina NAKA. As ground cover plants, Sasa borealis, Rubus crataegifolius Bunge were founded.

Efficient isolation, culture and regeneration of Lotus corniculatus protoplasts

  • Raikar, S.V.;Braun, R.H.;Bryant, C.;Conner, A.J.;Christey, M.C.
    • Plant Biotechnology Reports
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    • v.2 no.3
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    • pp.171-177
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    • 2008
  • This paper reports an improved protocol for isolation, culture and regeneration of Lotus corniculatus protoplasts. A range of parameters which influence the isolation of L. corniculatus protoplasts were investigated, i.e., enzyme combination, tissue type, incubation period and osmolarity level. Of three enzyme combinations tested, the highest yield of viable protoplasts was achieved with the combination of 2% Cellulase Onozuka RS, 1% Macerozyme R-10, 0.5% Driselase and 0.2% Pectolyase. The use of etiolated cotyledon tissue as a source for protoplast isolation proved vital in obtaining substantially higher protoplast yields than previously reported. Culture of the protoplasts on a nitrocellulose membrane with a Lolium perenne feeder-layer on the sequential series of PEL medium was highly successful in the formation of microcolonies with plating efficiencies 3-10 times greater than previous studies. Shoot regeneration and intact plants were achieved from 46% of protoplast-derived cell colonies.

Production of Transgenic Birdsfoot Trefoil (Lotus corniculatus L.) Plants by Introduction of E35S Promoter + AtNDPK2 Gene (E35S 프로모터 + AtNDPK2 유전자 도입에 의한 버즈풋 트레포일 (Lotus corniculatus L.) 형질전환체 생산)

  • Kim Ki-Yong;Jang Yo-Soon;Choi Gi-Jun;Sung Byung-Ryeol;Kim Won-Ho;Seo Sung;Lee Byung-Hyun;Kwak Sang-Soo
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.26 no.2
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    • pp.83-90
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    • 2006
  • To develop transgenic birdsfoot trefoil (Lotus corniculatus L.) plants tolerant to environmental stress, Arabidopsis NDPK gene (AtNDPK) was introduced into birdsfoot trefoil plants using Agrobacterium-mediated transformation and expressed powerfully under the control of the E35S promoter. The expression vector, pEN-K was used for introduction of AtNDPK gene into birdsfoot trefoil plaits. The transformed calli were selected on kanamycin containing medium and then regenerated. The transformed birdsfoot trefoil plants were cultivated for 4 months on BOi2Y medium. Genomic DNA PCR and Southern blot analysis confirmed the incorporation of AtNDPK into the birdsfoot trefoil genome.

Cyanogenoc polymorphism in the leaves of locus corniculatus var. japonicus regel(leguminosae) in the south korea (韓國産 벌노랑이 ( Lotus corniculatus var. japonicus Regel : Leguminosae ) 잎의 靑酸生成 多型現狀)

  • Moon, Tae-Young
    • The Korean Journal of Ecology
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    • v.15 no.1
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    • pp.75-80
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    • 1992
  • The populations of the legume lotus corniculatus var. japonicus regel were polymorphic for the character of leaf cyanogenesis. The distribution of the related phenotypes was investigated at ten different sites scattered in south Korea. The frequencies of leaf-cyanogenic plants were respectively and in percentage (the number of the samples) ; ch'onmasan(2 sits) 98.00%(200), 99.44%(180); ch'onggyesan 92.30%(104) ; myongjisan 97.00%(100); songnisan 98.00%(100); kyeryongsan 92.50%(120) ; chilgapsan 91.82%(110); hwasan 96.00(100); chirisan(2 sites) 46.67%(105),68.59%(156): χ2=309.25, df=9, p 0.001. the factors that may be responsible for the distribution of the phenoytypes are discussed.

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Seeding Vigro of Two Lotus Entries and Their Reciprocal F Hybrids (두 Lotus종과 그들 교잡종간의 유식물 활력 비교)

  • Sam Nam Hur;C. J. Nelson;P. R. Beuselinck;J. H. Coutts
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.14 no.4
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    • pp.288-294
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    • 1994
  • Seedling vigor of introgressive hybrids between birdsfoot refoil 'MO-20"(Lotus corniculatus) used as the maternal parent and tetraploid(2n=4x=24)accession PI302921 narrowleaf trefoil(Lotus corniculatus L.), and parents were compared in terms of dry matter accumulation , net photosynthetic rate, dark respiration rate, and growth analysis. The hybrids showed better seedling vigor than PI302921 as they had lower dark respiration rate and higher relative growth rate (RGR) than PI302921. Hybrids grew faster than MO-20, but there was not significant difference between them. Net photosynthesis per unit area increased during three weeks after emergence without difference among the entries, then decreased sharply with leaf age and shading marking much differences among entries Dark respiration rate was very high just after emergence, after which it decreased rapidly until it reached a stable level at 1 week through 3 weeks of age, and then dropped again. In general, dark respiration, photosynthesis, and seedling growth of the hybrid was similar to those if MO-20. Although there are some reports about interspecific hybrids of Lotus species, it still remains as a new area for genetic improvement of seedling vigor of L. corniculatus.atus.

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