• 식물분류학회지
• /
• 제45권4호
• /
• pp.369-379
• /
• 2015

한국산 Alsineae (Alsinoideae, 석죽과) 8속 25분류군 종자의 형태학적 형질에 대한 식별형질로서의 가치와 분류학적 의미를 평가하기 위해 해부현미경(SM)과 주사전자현미경(SEM)을 통해 관찰하고 자세히 기재하였다. 종자의 외형은 원형, 쉼표형, 타원형, 난형, 양배형, 신장형, 아원형으로 다양하게 나타났으며, 크기는 길이 0.28-4.10 mm, 너비 0.33-3.10 mm로 개미자리(Sagina japonica)가 가장 작게 나타났고, 갯별꽃(Honkenya peploides var. major)이 가장 크게 나타났다. 점나도나물속(Cerastium), 갯별꽃속(Honkenya), 개벼룩속(Moehringia)에서 제 부위에 부속지가 관찰되었고, 개벼룩속(Moehringia)에서만 strophiole이 관찰되어 구별되었다. 종자표면무늬에 따라 4가지 유형, 구릉상-유두형, 구릉상-기둥형, 구릉상-단순형, 평활상으로 구별하였으며, 종피세포의 형태, 주변부, 수층벽 높이의 정도, 병층세포벽의 형태 등의 형질을 기재하였다. 또한, 이전에 제시된 분류체계와의 비교를 통해 종자 미세형태학적 형질의 분류학적 유용성에 대해 논의하였다.

• 한국과학교육학회지
• /
• 제27권9호
• /
• pp.919-929
• /
• 2007

본 연구는 우리나라 대학의 식물형태학 분야에서 사용하는 유관속조직의 구조에 관한 용어들 가운데,교재 또는 저술자에 따라 다르게 번역되어 쓰이고 있는 한글 용어들의 합리적인 표기를 제안하기 위한 것이다. 대학에서 교재로 사용되는 일반생물학,일반식물학,식물형태학 등 14종의 교재에서 서로 다르게 표기되어 있는 대표적인 12개 용어의 어원과 정의를 조사 분석한 결과 제시된 한글 용어의 표기는 다음과 같다. 즉 목부(木部,물관부)의 구조에 관한 용어로서 "apotracheal parenchyma"는 "도관분리형유조직(導管分離形柔祖熾)" 으로 표기하고, "paratracheal parenchyma"는 "도관연접형유조직(導管連接形柔組織)"으로,"tylose"는 "전충체(塡充體)"로 표기하는 것이 적합하다. 벽공(壁孔)의 구조에 관한 용어로서 "simple pit"는 "단순벽공(單純壁孔)"으로 표기하고, "bordered pit"는 "유연벽공(有緣壁孔)"으로,"aspirated bordered pit"는 "흡착유연벽공(吸着有緣壁孔)"으로,"pit aperture"는 "벽공구(壁孔口)"로 표기하는 것이 합당하다. 그러고 중심주(中心柱)의 구조에 관한 용어로서 "haplostele"은 "단순중심주(單純中心柱)"로 표기하고, "actinosteIe"은 "방사중심주(放射中心柱)"로, "plectostele"은 "습곡중심주(褶曲中心柱)"로,"solenosteIe"은 "통로중심주(通路中心柱)"로 표기하는 것이 합리적이다. 이러한 연구를 통해서 식물학 분야를 가르치는 교수자와 배우는 학습자들 사이에 생물학적 개념을 올바르게 전달하고 이해를 증진시킬 수 있을 것으로 기대된다.

• 한국한의학연구원논문집
• /
• 제12권2호통권17호
• /
• pp.63-73
• /
• 2006

In the original plant of Arisaematis Rhizomas, the features of external and internal shape of Arisaema amurense var. serratum $N_{AKAI}$ and A. amurense $_{MAXIM}$. are as follows. 1. In the external shape of original plant, Arisaema amurense var. serratum $N_{AKAI}$ has high stem, an oval-elliptic leaflet and a serrate leaf margin. But A. amurense $M_{AXIM}$ has a relatively low stem, an upside oval leaflet and no serrate leaf margin. 2. On the herbs character of original plant, Ansaema amurense var. serratum $N_{AKAI}$ is small in height and diameter, but A. amurense $M_{AXIM}$ is relatively large in height and diameter. 3. On the gathered herbs character of original plant, the section of Arisaema amurense var. serratum $N_{AKAI}$ is brightly white, easily spilt and strong scent. But the section of A. amurense $M_{AXIM}$ is thin yellowish brown, not easily spilt and weak scent. Also the grade of gathered herbs, both can be classified by diameter and external scent. 4. In the current herbs character, Korean and Sichuan Province products are irregullar shape and have no scent, Jilin Province products are regular shape. Also, Guangxi Province products are small size and concave in one side, Hebei Province products are irregular size and shape. 5. In internal shape of original plant, epidermal cell of Arisaema amurense var. serratum is very tight. With the except of micro difference in parenchyma cell of cortex, on the whole there are nearly no differences with A. amurense $M_{AXIM}$. Also, samely in the internal shape, according to collecting sites, epidermis exhibits a lot layer in curving state and secreting duct is developed and vascular bundle and exists between parenchyma cell of cortex. In the future, additional study is needed to distinguish herb and effect between same genus-degree of relatedness.

• 식물분류학회지
• /
• 제42권2호
• /
• pp.161-166
• /
• 2012

재배식물인 강화약쑥의 분류학적 실체를 파악하기 위하여 외부형태가 유사한 쑥속식물을 대상으로 외부형태 비교와 ITS 염기서열분석을 수행하였다. 지금까지 강화약쑥의 기원식물은 쑥으로 알려져 왔으나, 잎의 외부형태에서 1-2회 우상 중열 또는 심열하고 잎 표면에 백색선모가 분포하는 특징은 황해쑥의 잎과 동일하였으며, ITS분석에서도 강화약쑥은 쑥과 유집되지 않고 황해쑥과 더 가깝게 유집되었다. 따라서 강화약쑥은 쑥이 아닌 황해쑥에서 기원된 재배식물로 판단되었다.

• The Plant Pathology Journal
• /
• 제32권5호
• /
• pp.388-395
• /
• 2016

The most serious aerial disease of garlic is leaf blight caused by Stemphylium spp. Geographical variation in the causal agent of this disease is indicated. Stemphylium vesicarium has been reported in Spain, whereas S. solani is the most prevalent species recorded in China. In this study, Stemphylium isolates were obtained from symptomatic garlic plants sampled from the main Spanish production areas. Sequence data for the ITS1-5.8S-ITS2 region enabled assignation of the isolates to the Pleospora herbarum complex and clearly distinguished the isolates from S. solani. Conidial morphology of the isolates corresponded to that of S. vesicarium and clearly discriminated them from S. alfalfae and S. herbarum on the basis of the size and septation pattern of mature conidia. Conidial morphology as well as conidial length, width and length:width ratio also allowed the Spanish isolates to be distinguished from S. botryosum and S. herbarum. Control of leaf blight of garlic is not well established. Few studies are available regarding the effectiveness of chemical treatments to reduce Stemphylium spp. incidence on garlic. The effectiveness of nine fungicides of different chemical groups to reduce Stemphylium mycelial growth in vitro was tested. Boscalid + pyraclostrobin (group name, succinate dehydrogenase inhibitors + quinone outside inhibitors), iprodione (dicar-boximide), and prochloraz (demethylation inhibitors) were highly effective at reducing mycelial growth in S. vesicarium with $EC_{50}$ values less than 5 ppm. In general, the effectiveness of the fungicide was enhanced with increasing dosage.

• Mycobiology
• /
• 제46권2호
• /
• pp.168-171
• /
• 2018

In 2016, a severe leaf spot disease was found on Iris ensata Thumb. in Nanjing, China. The symptom was elliptical, fusiform, or irregularly necrotic lesion surrounded by a yellow halo, from which a small-spored Alternaria species was isolated. The fungus was identified as Alternaria iridiaustralis based on morphological characteristics. The pathogenicity tests revealed that the fungus was the causal pathogen of the disease. Phylogenic analyses using sequences of ITS, gpd, endoPG, and RPB2 genes confirmed the morphological identification. This study is the first report of A. iridiaustralis causing leaf spots on I. ensata in China.

• 식물분류학회지
• /
• 제41권2호
• /
• pp.156-163
• /
• 2011

국내에 분포하는 이팝나무의 외부형태학적 형질을 재검토하여 기존 문헌과 선행 연구와의 차이를 파악하였으며, 식물상 문헌 및 표본정보를 통해 국내 분포도를 작성하였다. 또한 잎 표피 미세구조학적 형질과 엽병의 해부학적 형질을 추가하여 간략히 기재하였다.

• 식물분류학회지
• /
• 제48권2호
• /
• pp.109-114
• /
• 2018

The inconsistent relationship between the monogeneric family Cephalotaxaceae and Taxaceae was discussed and the possibility of merging Cephalotaxus within Taxaceae was also reviewed. Our previous reports (cladistics analysis, leaf anatomy and wood anatomy of Taxaceae s.l.) did not find a feasible reason to create a distinction between Cephalotaxus and other Taxad genera (Taxus, Pseudotaxus, Amentotaxus, Torreya and, Austrotaxus) and thus argued for a broader concept of Taxaceae with Cephalotaxus. The monophyly of Taxaceae including Cephalotaxus is described in various contemporary molecular studies, and some of them are in support of the single large family Taxaceae with six genera. Although additional comprehensive studies in the future may perhaps weaken the precise association between Cephalotaxaceae and other Taxad genera, on the basis of recent corroborations, at this moment Taxaceae should be redefined with broad circumscriptions, including Cephalotaxus.

• Journal of Plant Biology
• /
• 제38권2호
• /
• pp.165-171
• /
• 1995

Plants of G. furcata were divided into four variant populations. The habit characteristics, external and internal morphology were analysed quantitatively in order to clarify their morphological variation. Among four variant populations, type I(typical G. furcata type) and type II(G. furcata f. intricata type) may be influenced by the time when the develop from the crustose basal discs and the tidal level. Type III is the immature plants, and type IV (G. furcata f. coliformis type) is a G. furcata population in late spring after the luxuriant season. For the reason, the formas of G. furcata f. intricata and f. coliformis are no more valid in Gloiopeltis furcata.

• Plant Resources
• /
• 제5권1호
• /
• pp.17-28
• /
• 2002

Palynological characters such as pollen grain polar axis length (PL), pollen equatorial diameter (ED), colpus length, colpus width, and P/E ratio of six species of Quercus subgenus Lepidobalanus Endl. from Korea were studied. A significant interspecific variation, unequal distances between the species, and various degree of intraspecific variations were found. The taxonomic value of the pollen morphology parameters measured was found to vary according to species. These results suggest a possible relationship between parameters measured and ploidy level of the Quercus species studied.