• Applied Microscopy
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• v.10 no.1_2
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• pp.33-40
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• 1980

미국산 사초속 식물의 잎의 표피형에 대한 조사로서 6 Sect., 6 Species에 대해 주사현미경을 사용하여 표피형을 조사하였다. 표피형의 구성요소인 숨구멍(Stomata), 세포벽(Cell wall), 유두돌기(Papillae), 가시돌기 (Prickle), 납질(Waxy)등의 모양을 조사하였다. 표피형 구성세포의 특징이 종류에 따라 차이가 있어 사초속 식물의 감별 및 분류에 좋은 형질이 될수가 있다고 보는 바이다.

• Korean Journal of Plant Taxonomy
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• v.33 no.4
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• pp.393-409
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• 2003

Morphological and anatomical characters of selected 3 taxa of Rhynchospora were reexamined. The epidermal patterns of achene and leaf were investigated using a scanning electron microscope (SEM) and a light microscope (LM). Morphological characters such as length and width of bract, spikelet, scale, achene, stem, leaf and leaf sheath, and shape of inflorescence, spikelet, scale, apex of scale, perigynium and achene, and number of stigma and anatomical characters (transectional shape of the stem, and leaf: vascular bundles in stem and leaf epidermal patterns: shape of fundamental epidermal cell and cell wall, type of silica body, subsidiary cell shape, size and frequency of stomatal complex of leaf) were useful for the identification. Keys based on data were presented here.

• Korean Journal of Plant Taxonomy
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• v.32 no.4
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• pp.363-382
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• 2002

Morphological characters of three taxa belonging to three genera (Fuirena, Kobresia, and Scleria) in Korean Cyperaceae were reexamined. The anatomical patterns of stems and leaves, and epidermal patterns of achenes and leaves were investigated by a scanning electron microscope (SEM) and a light microscope (LM). Based upon the results, the scientific and Korean names, which have not been clearly established, were reviewed. Morphological characters such as length and width of stem, leaf, bract, scale, achene, and shape of achene, spikelet, style base, scale, perianth, and anatomical characters such as shape of stem and leaf, shape of achene epidermal cell and silica body of leaf, size and frequency of stomatal complex, presence of bulliform cell were useful for an identification of the three taxa.

• Korean Journal of Plant Taxonomy
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• v.34 no.4
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• pp.297-319
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• 2004

Morphological characters of 14 taxa in 6 sections Ischnostachya(one taxon), Anomalae(one taxon), Capitellatae (five taxa), Debiles (one taxon), Capillares (one taxon) and Molliculae (five taxa) of genus Carex (Cyperaceae) were reexamined. The epidermal patterns of perigynium, achene and leaf were investigated using by using a scanning eletron microscope (SEM) and a light microscope (LM). Morphological characters such as rhizome, spike, width of leaf, leaf sheath, involucre, involucre sheath, beak of perigynium, perigynium shape, and leaf epidermal patterns were useful for the identification of observed fourteen taxa. The number of spike, arrangement of psitillate or staminate spike and presence of bract were very useful characters to divide the treated 14 taxa into two groups. A key based on data was presented here.

• Korean Journal of Plant Taxonomy
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• v.41 no.1
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• pp.51-57
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• 2011

The microstructure of the leaf epidermis and trichomes of Fallopia sect. Reynoutria are examined using scanning electron microscopy. Fallopia sachalinensis was distinguished from other taxa in this section by its prominent epicuticular wax layer consisting of protruding wax rodlets. In addition, epicuticular rodlets of F. sachalinensis individuals from Ullung Island and Dok Island appear to be thinner than those from other regions, including Japan and Sakhalin. The stomatal size appears to be related to the ploidy level in the sect. Reynoutria, as the hexaploids, octoploids and dodecaploids tend to have larger stomata as compared to tetraploids. Three basic types of trichomes were found in the section; (1) conical unicellular trichomes, (2) uniseriate filiform trichome consisting of 1-8 cells, and (3) peltate glandular trichomes. The trichome types and their distribution appear to be useful in distinguishing the taxa in the section.

• Korean Journal of Plant Taxonomy
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• v.32 no.3
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• pp.301-338
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• 2002

Morphological characters of sections Rhomboidales (four taxa) and Digitatae (seven taxa) of the subgen. Eucarex (genus Carex, Cyperaceae) were reexamined. The epidermal patterns of perigynium, achene and leaf were investigated by SEM and LM. Morphological characters such as length and width of stem, leaf, bract, spike, scale, perigynium and achene, and shape of cross-sectioned stem, spike, scale, apex of scale, perigynium, beak and base of perigynium, achene, hair present or absent in perigynium, number of involucre and epidermal pattern of perigynium, achene and leaf(shape of fundamental epidermal cell and cell wall, type of silica body, shape of beak epidermal cell and cell wall in perigynium, subsidiary cell shape, size and frequency of stomatal complex of leaf) were useful for the identification of the observed 11 taxa. According to the current study, examined 11 taxa of sections Rhomboidales and Digitatae were distinct from each other regarding by length of leaf, stem, pistillate scale and perigynium, shape and epidermal cell of perigynium beak. C. lanceolata and C. humilis have been confused due to similar morphological characters. C. lanceolata and C. humilis were distinct, however with respect to from length of stem, leaf ligule present or absent, shape of cross-sectioned stem, epidermal patterns of perigynium, achene and leaf. And C. lanceolata could be distinguished from C. pediformis by shape of perigynium and achene, shape of cross-sectioned of stem, epidermal pattern of perigynium, achene and leaf.

• Korean Journal of Plant Taxonomy
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• v.31 no.3
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• pp.223-251
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• 2001

Morphological characters of section Atratae of the genus Carex (Cyperaceae) were reexamined. The epidermal patterns of perigynium, achene and leaf were investigated using by a scanning electron microscope (SEM) and a light microscope (LM). Morphological characters such as length and width of stem, leaf, bract, spike, scale, perigynium and achene, and shape of cross-sectioned stem, and leaf, spike, scale, apex of scale, perigynium, beak of perigynium and achene, and epidermal pattern of perigynium, achene and leaf (shape of fundamental epidermal cell and cell wall, type of silica body, shape of beak epidermal cell and cell wall in perigynium, subsidiary cell shape, size and frequency of stomatal complex of leaf) were useful for the identifications of the observed seven taxa. C. gmelinii, C. hancokiana and C. peiktusani have been confused each other due to similar morphological characters. Howerever these taxa were distinct with respect to shape of scale, apex of scale, perigynium, type of silica body, frequence of stomatal complex, subsidal cell shape, and epidermal patterns of achene and leaf.

• Applied Microscopy
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• v.42 no.2
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• pp.95-103
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• 2012

The cell surface sculpture of the plant epidermis has received great interest recently. It has also been an active area of research, as the biological microstructures of the surface, such as papillae and waxes, exhibit several unique properties, including self-cleaning character; namely the "Lotus effect" first described in the leaves of the lotus, Nelumbo nucifera. The Lotus effect is the phenomenon in which the super-hydrophobic and water-repellent nature of lotus leaves allow water drops to run off easily on the surface in a rolling and sliding motion thereby facilitating the removal of dirt particles. It is well-known that surface roughness on the micro- and nanoscale is a primary characteristic allowing for the Lotus effect. This effect is common among plants and is of great technological importance, since it can be applied industrially in numerous fields. In the present study, Nelumbo nucifera leaf and stem epidermal surfaces have been examined with a focus on the features of papillae and wax crystalloids. Both young and mature Nelumbo nucifera leaf epidermis demonstrated the Lotus effect on their entire epidermal surface. The central area of the upper epidermis, in particular, formed extremely papillose surfaces, with an additional wax layer, enabling greater water repellency. Despite the presence of wax crystalloids, epidermal surfaces of the lower leaf and stem lacking papillae, were much more easily wetted.

• Korean Journal of Plant Taxonomy
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• v.37 no.3
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• pp.239-254
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• 2007

A comparative micromorphological study was examined on the leaves of the genus Glechoma and related genera (Nepetinae, Lamiaceae) by scanning electron microscopy (SEM) in order to evaluate their significance in the taxonomy. The leaves of taxa Marmoritis, Nepeta sect. Glechomanthe, G. hederacea var. longituba (Korea) are revealed amphistomatic type, while the remnants of taxa had hypostomatic type. The size range of the guard cells is $12.50-28.75{\times}9.17-21.25{\mu}m$: the smallest one was found in M. pharicus ($12.50-15.83{\times}9.17-11.25{\mu}m$), while the largest one was measured to G. hederacea var. longituba (Korea: $28.75-28.88{\times}21.25-21.38{\mu}m$). The stomatal type of genera Agastache, Dracocephalum was mostly diacytic, however for the rest rarely together with anisocytic and anomocytic, except G. hederaca var. longituba (Korea), Meehania urticifolia by having combined with diacytic and anomocytic. The shapes of epidermal cells are differ from in abaxial and adaxial side, and dived with two types (e.g., platelet, stripe pattern). Five types (three glandular, two non-glandular hairs) of trichomes are distributed in leaves. Among trichomes, long and stalk capitates glandular trichome, subsessile glands are different from studied taxa so that leaf micromorphological characters are significance features in the taxonomy.

• Korean Journal Plant Pathology
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• v.3 no.2
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• pp.100-107
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• 1987

Pre-pentration activity of Pyricularia oryzae Cav. from the stage of conidia germination to appressorium formation was examined on rice leaf epidermis under light and scanning electron microscopes to determine the causes· for differences in blast susceptibility between plants grown under three different soil moisture conditions in the greenhouse. No significant differences were found in the external shape of leaf epidermal cells including bulliform cells between plants grown under different soil moisture conditions. Growth and orientation of germ tube and morphology and size of appressorium of P. oryzae did not vary with soil moisture treatment. Site of appressorium formation was consistent over soil moisture treatment with the highest frequency of bulliform cell $(35\~48\%)$, followed by short cell $(19\~27\%)$, and long and guard cells $(13\~20\%)$. No appressorium was formed on trichome. This result suggests that the observed differences in blast susceptibility between plants grown under different soil moisture conditions were not due to the differences in the pre-pentration activity of P. oryzae on those plants.