• KSBB Journal
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• 제7권3호
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• pp.216-221
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• 1992

본 연구는 고추 잎 절편으로부터 유도한 callus로부터 체세포 배형성에 따른 peroxidase, esterase 및 MDH의 활성 및 전기영동적 변화를 비교 분석하여 세포분화에 따른 생리, 생화학적인 변화를 알아보고자 하였다. 고추 잎 절편에서 유도된 callus는 호르몬이 첨가 되지 않은 MS 액체배지에서 체세포배를 유도하였을 때 배양 7일째 peroxidase, esterase, MDH의 효소 활성이 가장 높게 나타났으며 특히 peroxidase의 활성도는 배양 12일째 세포내에 비해 배로 방출된 효소의 활성이 4배 정도 높았다. 이와같이 페세포 배형성에 따른 isozyme 의 활성도 및 전기영동적 양상의 배형성과 재분화 과정을 연구하는데 유용할 것으로 사료된다.

• 한국작물학회지
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• 제47권3호
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• pp.206-210
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• 2002

종실 등의 특성을 기준으로 분류한 7가지 벼 이형주군의 변이와 분리양상은 다음과 같다. 1. Esterase 동위효소 분석에서 장립적미군은 1과 3 esterase isozyme zymogram(EIZ), 장립메성군은 1, 3 및 7 EIZ로 분류할 수 있었다. 2. 극만생 불임군은 EIZ가 1, 2, 1+2, 5, 6, 5+6, 7, 8, 7+8 및 12로 다양하게 분리되었다. 3. EIZ가 1인 장립적미군이 3 EIZ인 장립적미군에 비해 간장이 길고 현미의 장폭비가 낮았다. 4. EIZ가 3인 장립메성군은 1이나 7 EIZ인 장립메성군에 비해 간장이 길고 수장이 짧고 분얼수가 많고 현미의 장폭비가 낮으며 수당 립수가 적었다.

• 한국작물학회지
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• 제29권1호
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• pp.39-45
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• 1984

본 실험은 수도의 유전연구에 전기영동법을 도입함에 있어 기초조사를 하기 위하여 수도 조직내의 몇가지 산소가 부위별로 차이가 있는지 또한 생장 조절제인 GA를 처이함으로 같은 산소의 동위효소 pattern이 변하는지 '아끼바레'와 '유신' 두 품종을 사용 조사하였다. 그 결과는 다음과 같았다. 1. Isoelectrofocusing에 의한 종자, Shoot, Root의 Esterase, Phosphatase, Amylase 동위효소 pattern은 두 품종 모두 조직부위별로 다른 pattern을 보였다. 2. 7％ polyacrglamide slab gel electrophoresis에 의한 Peroxidase 동위효소 pattern도 두 품종 모두 조직부위별로 다른 Pattern을 보였다. 3. GA(10/sup -5/)을 처리했을 경우 Esterase 동위효소 pattern은 '아끼바레'의 root와 '유신'의 shoot, root에서 대조구와 차이가 있었으며 Phosphatase의 동위효소 pattern은 '아끼바레'의 root에서 차이가 있었다. Amylase와 Peroxidase의 동위효소 pattern은 대조구와 GA 처리간에 차이가 없었다.

• The Korean Journal of Ecology
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• 제20권2호
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• pp.103-109
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• 1997

Eleven phenolic compounds including caffeic acid were identified through analyzing the aqueous extracts of Pinus rigida by HPLC. Among them, protocatechuic acid was the maximum amount of 6.84 ppm. Seed germination of Cassia mimosoides var. nomame was significantly stimulated by the extract of P. rigida leaves in the proportion ot concentration. However, root growth was elevalted at a threshold concentration below 25%, but it was inhibited at high concentrations. In 50% extract of P. rigida, upward root tip of C. mimosoides var. nomame showed negageotropism which the root end showed necrosis. New isozyme bands were induced indicating concentration activity of peroxidase from the extract of C. mimosoides var. nomame, especially in the cathodic region. Although it reduced the mumber of isozyme bands of esterase, esterase activities were stimulated in the anodic region of C. mimosoides var. nomame. The activity of amylase was not remarkably different between control and treatment.

• 한국식물병리학회지
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• 제3권3호
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• pp.168-173
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• 1987

도열병균(Pyricularia oryzae) 균사체의 esterase 동위효소 pattern이 배양조건에 의하여 변화되는가를 $10\~25\%$ polyacrylamide gradient slab gel을 사용하여 알아보았다. 배양기간에 따라 배양 24일까지 동위효소 pattern은 변하지 않았지만 특징 band의 효소량에는 차이가 있었다. 탄소원(glucose, fructose, maltose, sucrose, starch), 단포자분리균주간, 계대배양 및 세포벽재생균주간의 동위효소 pattern은 변함이 없었다.

• 한국패류학회지
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• 제12권1호
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• pp.39-45
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• 1996

Polyacrylamide gel electrophoresis was used to reveal the esterase isozyme patterns of a freshwater snail, Semisulcospira gottschei, in the lake Uiam. From the result with inhibitors, it is tentatively concluded that four types (arylesterase, carboxylesterase, acethylesterase, acethylcholinesterase)of the adult(means of allele per locus=1.16, %polymorphism=16.7, heterozygosity=0.082)was lower than the juveniles(A=1.7, %P=16.7, H$\sub$D/=0.2215).

• 한국응용곤충학회지
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• 제32권3호
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• pp.265-270
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• 1993

바퀴(Blattella germanica L.)의 살충제 저항성 기구를 구명하고자 chlorpyrifos와 permethrin 살충제로 누대선ㅂㄹ하여 얻어진 저항성 바퀴를 대상으로 저항성 기작에 관여하는 esterase 활성변화에 관하여 실험한 결과는 다음과 같다. Filter paper test 방법을 통한 esterase-$\alpha$의 활성은 chlorpyrifos와 permethrin 도태계통에서 각각 2.65배, 1.82배로 감수성계통보다 증가하였다. Spectrophotometer 방법을 통한 esterase의 활성은 감수성계통보다 chlorpyrifos 도태계통에서 $\alpha$- 및 $\beta$-Naphthyl acetate에 대하여 각각 2.34배, 5.28배, permethrin 도태계통에서는 1.48배, 2.2배 증가하였다. 전기영동 실험을 통한 esterase isozyme pattern은 모두 5개의 band가 분리 검출되었다. Rc와 Rp계통에서는 감수성계통에서 뚜렷하게 검출되지 않은 Est-2와 Est-3 band가 검출되었으며, Rp계통에서는 감수성과 Rc계통에서 검출된 Est-5 band가 검출되지 않았다.

• 한국작물학회지
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• 제47권1호
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• pp.29-35
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• 2002

This study was carried out to investigate the characteristics of shattering habit and germination of offtype rice plants collected in Korea which were classified into seven groups based on grain characteristics. In the long-grain red rice group, the short-grain red rice group, the long-grain normal rice group, and the long-grain waxy rice group, the tensile strength of grain and primary rachis branch was relatively low and the fiber cell of the primary rachis branch was short. Characteristics of shattering-related traits and germination in relation to grain and esterase isozyme zymogram type of off-type rice plants. In most lines of the extremely late and sterile rice group, the tensile strength of grain was low, while that of primary rachis branch was high, and the fiber cell was long. However, in the type 1 esterase isozyme zymogram(EIZ) lines among the long-grain normal rice group and the type 6 and 5+6 EIZ plants among the extremely late and sterile rice group, the tensile strength of grain was relatively higher. The long-grain waxy rice group and the type 3 EIZ lines among the long-grain red rice group, showed higher germinability than did cultivars which are known to germinate well even in low-temperature. The other off-type rice group, except for the short-grain waxy rice group and type 1 and 7 EIZ lines among the long-grain normal rice group, had higher germination speed than that of the cultivars.

• Journal of Plant Biotechnology
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• 제7권1호
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• pp.27-35
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• 2005

Eighty-five different cultivars of Brassica rapa, B. juncea, B. nap us, B. carinata, B. oleracea and hexaploid Brassica collected from Bangladesh, Japan, China and Denmark were analyzed by SDS-PAGE for seed and leaf protein variations, using esterase, acid phosphatase and peroxidase isozyme analysis. Ten polymorphic bands were identified from seed protein however no identifiable polymorphic band was found in the leaf protein. Polymorphic markers clearly distinguished the different Brassica species as well as yellow sarson (YS) and brown seeded (BS) cultivars of B. rapa. The $F_1$ cross between YS and brown seeded cultivars showed the existance of all poly-morphic bands of the respective parents. The Bangla-deshi and Japanese cultivars of B. rapa differed in the amount of seed protein. In the case of isozyme analysis, esterase showed the highest number of polymorphic bands (13) followed by acid phosphatase (9) and peroxidase (5). These polymorphic markers were very effec-tive for classification of all the species studied in this experiment. In parentage tests using isozymes, the hybridity of intra-and-interspecific crosses of almost all the seedlings could be identified from their respective cross combinations. Esterase polymorphism showed a clear differentiation between YS and BS types of B. rapa. In addition, two esterase polymorphic markers were iden ified to differentiate some cultivars of B. juncea. Segregation patterns in these two esterase bands showed a simple Mendelian monohybrid ratio of 3:1 in $F_2$, 1:1 in test cross and 1:0 in back cross progenies. No polymorphic band was identified to distinguish different cultivars of the same species by acid phosphatase or peroxidase. Polymerase Chain Reaction (PCR) was carried out with seed coat color specific marker of B. juncea. The yellow seeded cultivars produced a strong band at 0.5 kb and weak band 1.2 kb. In the addition of these two specific bands, Japanese yellow-seeded cultivars expressed two more weak bands at 1.0 kb and 1.1 kb. Where the brown seeded cultivars generated a single strong band at 1.1 kb. In segregating population, the yellow seed coat color marker segregated at a ratio 15 (brown) : 1 (yellow), indicating the digenic inheritance pattern of the trait.

• International Journal of Industrial Entomology and Biomaterials
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• 제13권2호
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• pp.113-117
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• 2006

Heterosis was studied involving two multivoltine silkworm breeds viz, APM1 and SLKSPM through rearing and isozyme analysis. A positive significant heterotic effect was observed in fecundity, hatching % and survivability. The heterobeltiosis was observed only in fecundity and hatching %. Isozyme analysis of ${\alpha}-esterase$ showed variation in loci and allelic expression. The allele with heterozygosity $(Est-2^{12})$ was observed at the Est-2 locus in $F_1$ progeny. Est-3 was observed in $F_1$ progeny, whereas it was completely absent in both parental lines. The present study suggests that the markers ($Est-2^{12}$ and Est-3) targeted for introgression may be useful for the improvement of fecundity and survivability as the phenomenon of heterosis was observed only in $F_1$ progeny.