식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제43권2호
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  • Pages.118-127
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  • 2013
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  • 1225-8318(pISSN)
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  • 2466-1546(eISSN)
한국식물분류학회 (The Korean Society of Plant Taxonomists)
권호 표지
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개나리족 및 근연분류군(물푸레나무과)의 잎 표피 미세구조에 대한 분류학적 검토

The systematic consideration of leaf epidermal microstructure in the tribe Forsythieae and its related genera (Oleaceae)

  • 송준호 (경희대학교 이과대학 생물학과 및 기초과학연구소) ;
  • 홍석표 (경희대학교 이과대학 생물학과 및 기초과학연구소)
  • Song, Jun-Ho (Laboratory of Plant Systematics, Department of Biology & Research Institute for Basic Sciences, Kyung Hee University) ;
  • Hong, Suk-Pyo (Laboratory of Plant Systematics, Department of Biology & Research Institute for Basic Sciences, Kyung Hee University)
  • 투고 : 2013.05.01
  • 심사 : 2013.06.07
  • 발행 : 2013.06.30
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초록

개나리족(Abeliophyllum: 1종, Forsythia: 12분류군-10종, 2변종)과 향선나무족(Fontanesia: 2 종) 및 근연 분류군인 Myxopyreae족(Myxopyrum: 5분류군-4종, 1아종)을 포함한 총 20분류군의 잎 표피 미세구조에 대한 분류학적 유용성을 검토하고자 주사전자현미경(SEM)으로 관찰하고 기재하였다. 기공복합체(stomatal complex)는 대부분의 분류군에서 배축면(abaxial side)에만 존재하는 이면기공엽(hypostomatic type)이었으나 일부 분류군에서는 잎의 양면에 모두 존재하는 양면기공엽(amphistomatic type)으로 나타났다. 공변세포의 크기는 17.14-47.58 ${\times}$ 11.59-44.25 ${\mu}m$으로 속과 종마다 다소 차이를 보이는데, Forsythia giraldiana (17.48-22.96 ${\times}$ 11.64-12.88 ${\mu}m$)가 가장 작은 공변세포를 지니고 있었고, Myxopyrum pierrei (31.50-41.75 ${\times}$ 32.53-44.25 ${\mu}m$)에서 가장 크게 나타났다. 기공복합체의 형태는 대부분 불규칙형(anomocytic)이 우세하며, 불규칙형과 불균등형(anisocytic)이모두 나타나거나 드물게 평행형(paracytic)이 나타나는 분류군이 확인되었다. 부세포의 수층벽(anticlinal wall)은 직선형과 곡선형이 동시에 관찰(straight/curved) 되거나 파상형(undulate) 또는 굴곡형(sinuate)이 나타나며, 파상형과 굴곡형이 동시에 나타나는 경우(undulate/sinuate)로 구분되었다. 연구된 분류군에서 나타나는 모용의 종류는 모두 3종류로 단세포 비선모(simple unicellular non-glandular trichome), 다세포 비선모(simple multicellular nonglandular trichome), 방패형 선모(subsessile/peltate glandular trichome)가 나타났다. 끝으로 조사된 분류군내의 속간, 종간 동정을 위한 잎 표피 미세구조학적 형질의 유용성 및 분류학적 적용 가능성을 검토하였다.

A comparative study of leaf epidermal microstructure in tribes Forsythieae (Abeliophyllum: 1 species, Forsythia: 12 taxa - 10 species, 2 varieties), Fontanesieae (Fontanesia: 2 species) including one related genus Myxopyrum belonging to Myxopyreae (Myxopyrum: 5 taxa - 4 species, 1 subspecies) was carried out using scanning electron microscopy (SEM) in order to evaluate their significance in the taxonomy. The leaves of investigated taxa are either hypostomatic or amphistomatic, but former is more frequent. The size range of the guard cells is 17.14-47.58 ${\times}$ 11.59- 44.25 ${\mu}m$: the smallest one was found in Forsythia giraldiana (17.48-22.96 ${\times}$ 11.64-12.88 ${\mu}m$), while the largest one was measured to Myxopyrum pierrei (31.50-41.75 ${\times}$ 32.53-44.25 ${\mu}m$). Anomocytic stomatal complex are most frequent type (rarely paracytic), usually both anomocytic and anisocytic occur in one leaf. In surface view both adaxial and abaxial anticlinal walls of the subsidiary cells are variable (e.g., straight/curved, undulate, sinuate, undulate/sinuate). Three types (simple unicellular and multicellular non-glandular, subsessile glandular) of trichomes are found in leaves. Finally, the systematic significance of the leaf epidermal micromorphological characters in idenfitication and elucidation of these tribe, between or within the genera including among the species is also briefly discussed.

키워드

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피인용 문헌

  1. Complete plastid genome sequences of Abeliophyllum distichum Nakai (Oleaceae), a Korea endemic genus vol.1, pp.1, 2016, https://doi.org/10.1080/23802359.2016.1202741