Inspired by the growth characteristic of leaf epidermis cell walls: A bio-ITCLC core for supporting a flexible skin with combined morphing applications

2021 ◽  
Vol 255 ◽  
pp. 112870
Author(s):  
Jiliang Zheng ◽  
Renfu Li ◽  
Zhaojun Xi ◽  
Yichao Li
Keyword(s):  
Cell Walls ◽  
Growth Characteristic ◽  
Leaf Epidermis ◽  
Flexible Skin ◽  
Epidermis Cell

Study of a lightweight self-adaptation multi-morphing skin inspired by mechanics of epidermis cell walls producing the leaf’s unique smooth shape

2021 ◽  
pp. 101574
Author(s):  
Jiliang Zheng ◽  
Xubing Chen ◽  
Yong Sun ◽  
Yuanzhi Luo ◽  
Li Xiao ◽  
...  
Keyword(s):  
Cell Walls ◽  
Self Adaptation ◽  
Epidermis Cell

scholarly journals Micromorphology of endemic Centaurea glaberrima subsp. divergens (Asteraceae)

2022 ◽  
Vol 81 (1) ◽  
Author(s):  
Milan Gavrilović ◽  
Pedja Janaćković
Keyword(s):  
Cell Walls ◽  
Glandular Trichomes ◽  
Pollen Grains ◽  
Involucral Bract ◽  
Epidermal Cells ◽  
Leaf Epidermis ◽  
Abaxial Surface ◽  
Reproductive Structures ◽  
Anomocytic Stomata ◽  
First Time

In this study, the micromorphology of the vegetative and reproductive structures of the endemic Centaurea glaberrima Tausch subsp. divergens (Vis.) Hayek (Asteraceae), using scanning electron microscope (SEM), is presented for the first time. Uniseriate whip-like non-glandular and biseriate glandular trichomes are found on the surface of all aboveground parts (stem, leaves, peduncles, involucral bract). On the adaxial leaf epidermis ribbed thickenings (striation pattern) of outer periclinal cell walls, slightly curved anticlinal cell walls and anomocytic stomata are noticed. Rugose abaxial surface with thorny protuberances of the involucral bract is documented. Corolla is glabrous with longitudinally parallel epidermal cells with distinct straight outline. Isopolar, radially symmetric and tricolporate microechinate pollen grains are seen. Short stylar hairs, without cuticular striations, are present along the outer sides of the style, while the inner sides (abaxial surface) constitute the papillate stigmatic surface. Microcharacters found in cypsela are as follows: slightly ribbed body; rotund base; lateral and concave insertion; short, unicellular curly acute trichomes; smooth epidermis; fine-sulcate ornamentation; rod shaped epidermal cells with short, obtuse end walls and straight anticlinal walls; poorly developed minutely dentate pericarp rim; and dimorphic pappus with bristles of different length and morphology, with pinnules restricted to the margins of the bristles. The results obtained contribute to knowledge about the micromorphology of the studied endemic species and provide features for its better identification. The taxonomic significance of the analyzed characters is discussed. Some well defined microcharacters of the studied species might have taxonomic value

scholarly journals Mutagenic effects of ultraviolet (UV-C) irradiation on the anatomy of three species of Capsicum

2019 ◽  
Vol 54 (2) ◽  
pp. 111-116
Author(s):  
KA Abdul Kareem ◽  
TJ Olobatoke ◽  
AA Abdul Rahaman ◽  
OT Mustapha
Keyword(s):  
Ultraviolet Irradiation ◽  
Cell Walls ◽  
Stomatal Density ◽  
Capsicum Frutescens ◽  
Leaf Epidermis ◽  
Stomatal Index ◽  
Stomatal Size ◽  
Leaf Surfaces ◽  
Mutagenic Effects ◽  
Uv C

UV radiant seedlings of Capsicum annuum, C. Chinenese and Capsicum frutescens were studied anatomically to observe the UV effects on the leaf epidermis, stem and root ultrastructures. While there is a higher percentage of stomatal index in the UV-exposed plants compared to the controlled, unexposed plants, there is no correlation in the stomatal density and stomatal size between the exposed and unexposed plants to the ultraviolet irradiation. There was also no correlation between the stomatal size and the stomatal density in both treatments (exposed and unexposed) in all the plants. Significant differences were observed in the stomatal index on both leaf surfaces between the exposed and controlled plants of C. frutescens and C. annuum. Cell walls of the stem and root wereobserved to be thicker in the UV-exposed plants. Bangladesh J. Sci. Ind. Res.54(2), 111-116, 2019

scholarly journals Micromorphology of Sorbus intermedia Pers. nectary surface in different phases of blooming

2012 ◽  
Vol 59 (1) ◽  
pp. 49-59
Author(s):  
Elżbieta Weryszko-Chmielewska ◽  
Agata Konarska
Keyword(s):  
Flower Development ◽  
Cell Walls ◽  
Guard Cells ◽  
Outer Cell ◽  
Final Phase ◽  
Floral Nectary ◽  
Pollen Release ◽  
Epidermis Cell ◽  
Outer Cell Wall ◽  
Scanning Electron

The structure of floral nectary surface of <i>Sorbus intermedia</i> in different phases of flower development was examined using scanning electron microscopy. Nectaries in <i>S. intermedia</i> flowers represent a receptacle type. The sculpture of cuticule on nectary epidermis and overlaying cells was described. The differences in the size of striaes on the outer cell wall of epidermis during the flower development were stated. Nectarostomata were situated in small hollows. In the buds, they were closed and not fully developed. During pollen release phase, the outer ledges of the guard cells were better developed than at the beginning of blooming. Depressions on nectary epidermis cell walls were observed in the final phase of blooming.

Leaf epidermal characters of Brazilian species of Solanum section Torva as taxonomic evidence

Botany ◽  
2012 ◽  
Vol 90 (9) ◽  
pp. 806-814 ◽  
Author(s):  
Kiriaki Nurit-Silva ◽  
Rafael Costa-Silva ◽  
Ionaldo J.L.D. Basílio ◽  
Maria de Fátima Agra
Keyword(s):  
Cell Walls ◽  
Wave Pattern ◽  
Morphological Characters ◽  
Epidermal Cells ◽  
Leaf Epidermis ◽  
Taxonomic Significance ◽  
Abaxial Surface ◽  
Solanum Torvum ◽  
Different Types ◽  
Additional Support

To evaluate their taxonomic significance, the yet unknown epidermal characters of the leaves of 10 species of Solanum section Torva Nees (Solanaceae) from Brazil were determined using light and scanning electron microscopy. Our results indicated that the leaf epidermis showed epidermal cells of straight to wavy outlines. The curved pattern of anticlinal cell walls was predominant on the adaxial surface, and the wave pattern was predominant on the abaxial surface. Leaves are amphistomatic in six species ( Solanum acutilobum Dunal, Solanum bonariense L., Solanum guaraniticum A. St.-Hil., Solanum metrobotryon Dunal, Solanum scuticum M. Nee, and Solanum torvum Sw.) and hypostomatic in four species ( Solanum adspersum Witasek, Solanum paniculatum L., Solanum subumbellatum Vell., and Solanum variabile Mart.). Four different types of stomata (anisocytic, anomocytic, paracytic, and diacytic) were recognized, with the anisocytic type predominant on adaxial and abaxial surfaces. The combination of some micro-morphological characters such as density, distribution and type of stellate trichomes, the anticlinal walls of epidermal cells, and also the type and distribution of stomata proved to be the most useful and distinctive characters for the separation of species. This set of characters also may help as additional support in quality control of species having medicinal importance.

scholarly journals DEFECTIVE KERNEL1 (DEK1) Regulates Cell Walls in the Leaf Epidermis

2016 ◽  
Vol 172 (4) ◽  
pp. 2204-2218 ◽  
Author(s):  
Dhika Amanda ◽  
Monika S. Doblin ◽  
Roberta Galletti ◽  
Antony Bacic ◽  
Gwyneth C. Ingram ◽  
...  
Keyword(s):  
Cell Walls ◽  
Leaf Epidermis

scholarly journals A preliminary leaf epidermal and pollen morphology of some West African species of Desplatsia Bocq

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Emmanuel O. Shokefun ◽  
Abiodun E. Ayodele ◽  
Emuobosa A. Orijemie
Keyword(s):  
Cell Walls ◽  
Pollen Morphology ◽  
Glandular Trichomes ◽  
Pollen Grains ◽  
West African ◽  
Leaf Epidermis ◽  
Tropical Africa ◽  
African Species ◽  
Pollen Characters ◽  
Stomata Size

Desplatsia is a genus made up of about four to eight species which are mostly trees native to tropical Africa. The leaf and pollen characters of three West African species of Desplatsia were investigated using light microscopy. The study was aimed at investigating the leaf epidermis and pollen morphology of the species to further enhance the understanding of the taxonomic relationships in the genus. The epidermal cells were isodiametric, polygonal to irregular with straight, curved to wavy anticlinal cell walls. The species were hypostomatic with anisocytic and staurocytic stomata types. The adaxial and abaxial walls of Desplatsia chrysochlamywere characterised by three-celled head multicellular glandular trichomes with highest number of cells and stomata and striated adaxial surface. The four-armed branched and stellate trichomes with the largest stomata size of 19.5 µm × 15.6 µm distinguished D. dewevrei from D. subericarpa in which the largest cells, lowest number of stomata and size were recorded. The pollen grains were medium in size 26.5 µm–47.5 µm, tricolporate with long colpi. However, the subprolate, baculate exine surface, small ora and lumen width separated D. chrysochlamy from D. dewevrei and D. subericarpa in which prolate, perforated exine surface and colpi margo were recorded. A key is provided for the identification of the species. Therefore, the ora size, lumen width, number of epidermal cell and stomata are additional taxonomic characters that can be used for species delimitation in the genus.

Sign in / Sign up

Export Citation Format

Share Document