• 제목/요약/키워드: Asteraceae

검색결과 202건 처리시간 0.033초

개보리뺑이속과 서양개보리뺑이속(국화과; 상치족)의 과피벽 구조 비교 연구 (Comparative study of fruit wall structure in Lapsana L. and Lapsanastrum J. H. Pak & K. Bremer (Asteraceae; Lactuceae))

  • 박재홍;최경
    • 식물분류학회지
    • /
    • 제38권4호
    • /
    • pp.359-369
    • /
    • 2008
  • 국화과 상치족에 속하는 서양개보리뺑이(Lapsana communis) 내의 6아종과 개보리뺑이속 (Lapsanastrum) 4종에 대해 과피의 해부학적 구조를 조사하였다. 그 결과, 개보리뺑이속은 서양개보리뺑이와 외과피의 털의 유무, costa의 모양, 종피의 비후 등 몇 가지 형질에서 차이가 나타났다. 게다가 서양개보리뺑이속은 costae와 intercostae에 sclerenchymatous cell이 없는 반면에 개보리뺑이속은 sclerenchymatous cell로 이루어져 있다. 과실벽 구조에서의 차이는 명백하게 개보리뺑이속이 광의의 서양개보리뺑이속에서 분리됨을 지지한다.

Volatile Flavor Compounds of Saussurea lappa C.B. Clarke Root Oil by Hydro Distillation-GC and $GC/MS^+$

  • Chang, Kyung-Mi;Kim, Gun-Hee
    • Food Quality and Culture
    • /
    • 제1권1호
    • /
    • pp.13-17
    • /
    • 2007
  • The volatile flavor compounds of Saussurea lappa C.B. Clarke, a perennial, aromatic and medicinal herbaceous plant of the Asteraceae family, were isolated by the hydro distillation extraction method using a Clevenger-type apparatus, and analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS). The plant yielded a light yellow colored oil (0.02%, v/w). From S. lappa C.B. Clarke root oil, sixty-three volatile flavor compounds were tentatively identified, among which sesquiterpene was predominant (21.70%). The identified compounds of the root oil constituted 87.47% of the total peak area. From the constituents making up more than 5% of the volatile flavor components, a long-chain aldehyde, (7Z, 10Z, 13Z)-7, 10, 13-hexadecatrienal, was the most abundant volatile flavor compound (21.20%), followed by dehydrocostuslactone (10.30%) belonging to sesquiterpene lactone, valerenol (5.30%) and vulgarol B (5.06%).

  • PDF

국화과 식물의 외래해충 국화방패벌레(국명신칭), Corythucha marmorata Uhler (Hemiptera: Tingidae)의 한국 내 신 분포 기록 (First Record on the Exotic Lace Bug of Asteraceae, Corythucha marmorata Uhler (Hemiptera: Tingidae) in Korea)

  • 윤춘식;김형곤;최원영;정선우
    • 한국환경과학회지
    • /
    • 제22권12호
    • /
    • pp.1611-1614
    • /
    • 2013
  • Corythucha marmorata Uhler was newly recorded in Korea as a invasive species at Pohang-si, Gyeongsangbuk-do, Korea in 2011 and at Changwon-si, Gyeongsangnam-do, Korea in 2012. Adults of this species show reticular forewings with a lot of transparent membranes and also show pterigoid process of paranotum with strong processes. This invasive species was originated from North America, and then intruded into Europe and Japan. This species is presumed became an epidemic horticultural pest at present and it is injuring almost of Asteraceae leaves. It was presumed that the invasion of Corythucha marmorata into Korea was prior to September of 2011.

Chemical Constituents of Helichrysum conglobatum Growing in Egypt

  • El-Ghazooly, Maged G.;El-Lakany, Abdalla M.;Abou-Shoer, Mohamed I.;Aly, Amal H.
    • Natural Product Sciences
    • /
    • 제9권4호
    • /
    • pp.213-219
    • /
    • 2003
  • Five aromatic compounds, of which two are new glucosides, and six flavonols were isolated and identified for the first time from the flower heads and aerial shoots of Helichrysum conglobatum (Asteraceae). Their structures were established on the basis of chemical and spectroscopic methods including UV, MS, 1D- and 2D-NMR. Some fractions and isolates were screened for anti-microbial activities. This is the first report of the isolation of the chemical constituents of this species.

그늘쑥의 Sesquiterpene Lactone 성분 (Sesquiterpene Lactones of Artemisia sylvatica)

  • 권학철;최상진;이원빈;민용득;양민철
    • 약학회지
    • /
    • 제45권2호
    • /
    • pp.147-152
    • /
    • 2001
  • The phytochemical study of the aerial parts of Artemisia sylvatica (Asteraceae) led to the isolation of nine sesquiterpene lactones, l$\alpha$-hydroperoxy-rupicolin A acetate (1), rupicolin B acetate (2), rupicolin A acetate (3), l$\alpha$-hydroxy-4$\alpha$-hydroperoxy-bishopsolicepolide (4), 1$\alpha$-hydroperoxy-4$\beta$-hydroxy-8$\alpha$-acetoxy-guaia-2,9,11 (13)-triene-6$\alpha$,12-oxide (5), 1$\alpha$-hydroperoxy-4$\alpha$-hydroxybishopsolicepolide (6), l$\alpha$,4$\beta$-dihydroxy-8$\alpha$-acetoxy-guaia-2,9,11(13)-triene-6$\alpha$,12-olive (7), rupicolin A (8) and l$\alpha$,4$\alpha$-dihydroxy-bishopsolicepolide (9). Their structures were established by chemical and spectroscopic methods.

  • PDF

한국산 신종, 설악솜다리 (Leontopodium seorakensis, a new species of Asteraceae from Korea)

  • 임용석;현진오;김영동;신현철
    • 식물분류학회지
    • /
    • 제42권2호
    • /
    • pp.157-160
    • /
    • 2012
  • 설악산에 분포하는 신종, 설악솜다리를 기재하였다. 이 종은 산솜다리와 왜솜다리와 유사하나, 포 아랫면에 털이 밀생하며, 포편의 모양과 길이가 거의 같으며, 내외포편의 위쪽에 선모가 거의 없는 점에 의해 구분된다.

New diploid populations of Chrysanthemum indicum L. (Asteraceae) from Korea

  • KANG, Jung Hyun;KIM, Jung Sung
    • 식물분류학회지
    • /
    • 제50권1호
    • /
    • pp.17-21
    • /
    • 2020
  • Chrysanthemum indicum (Asteraceae) is a perennial plant belonging to the genus Chrysanthemum. The basic chromosome number of Chrysanthemum sensu stricto is x = 9, and it consists of a series of polyploids ranging from diploid to decaploid. However, C. indicum, which occurs in Korea, is known to consist of only tetraploids, except for two diploid populations that are sympatric with C. zawadskii and C. boreale. During the collection of plant materials as part of a study to ascertain the diversity of Chrysanthemum in Korea, we found new diploid populations (2n = 18) of C. indicum in the southern region of Korea and describe them here in detail.