scholarly journals THE ANATOMICAL CHARACTERS OF Ampelocissus (Vitaceae) IN SUMATRA

2020 ◽  
Vol 7 (2) ◽  
pp. 182-193
Author(s):  
Syadwina Hamama Dalimunthe ◽  
Tatik Chikmawati ◽  
Elizabeth A. Widjaja
Keyword(s):  
Calcium Oxalate ◽  
Epidermal Cell ◽  
Species Concept ◽  
Anatomical Study ◽  
Cell Number ◽  
Calcium Oxalate Crystals ◽  
Oxalate Crystals ◽  
Adaxial Epidermal Cell ◽  
Anatomical Characters ◽  
Cell Thickness

The revision of Ampelocissus was performed by observing the anatomical character of Ampelocissus leaves. The leaves were collected from 33 collection numbers of Herbarium Bogoriense (BO) and four collection numbers from Sumatra exploration. The purpose of this study is to update the information of diversity and to support species concept delimitation of Ampelocissus based on the anatomical study, especially on the sterile plant. Anatomical characters were observed on nine species and one variety of Sumatran Ampelocissus. Ampelocissus species is varied by the anatomical characters, i.e.: shape of the anticlinal wall of abaxial and adaxial epidermal cell, number of palisade layers, upper epidermal cell thickness, leaf thickness, presence of papillae on stomata neighboring cell, type, and shape of calcium oxalate crystals, also stomata position. The cluster analysis of Ampelocissus in Sumatra based on 16 anatomical characters showed the coefficient similarity in the range of 0.48 - 0.81. The research showed that the leaf anatomical characters can be used as additional characters to distinguish the species of Ampelocissus. Keywords: calcium oxalate crystals, diversity, papillae, similarity coefficient, species concept   ABSTRAK Ciri Anatomi Ampelocissus (Vitaceae) di Sumatera Revisi Ampelocissus dilakukan dengan mengamati ciri anatomi daun dari marga Ampelocissus. Sebanyak 33 nomor koleksi Herbarium Bogoriense (BO) dan empat nomor koleksi hasil eksplorasi di Sumatera digunakan. Penelitian ini bertujuan untuk memperbarui informasi mengenai keanekaragaman dan mendukung konsep jenis Ampelocissus berdasarkan ciri anatomi, terutama pada tumbuhan steril. Studi anatomi dilakukan pada sembilan jenis dan satu varietas Ampelocissus di Sumatera. Jenis-jenis Ampelocissus di Sumatera bervariasi pada ciri anatomi yaitu bentuk dinding antilkinal sel epidermis pada bagian abaksial dan adaksial, jumlah lapisan jaringan tiang, ketebalan sel epidermis atas, ketebalan daun, kehadiran papila, jenis dan bentuk kristal kalsium oksalat, serta posisi stomata terhadap sel epidermis pada bagian abaksial daun. Analisis pengelompokan Ampelocissus di Sumatera menggunakan 16 ciri antomi dan menghasilkan fenogram dengan koefisien kemiripan 0,48 - 0,81. Ciri anatomi daun dapat digunakan sebagai ciri tambahan yang memiliki nilai taksonomi dalam membedakan jenis-jenis Ampelocissus di Sumatera.

scholarly journals The anatomical structure peculiarities of various species of the genus Salsola L.

2020 ◽  
Vol 19 (2) ◽  
pp. 146-154
Author(s):  
B. B. Osmonali ◽  
N. Z. Akhtaeva ◽  
P. V. Vesselova ◽  
G. M. Kudabayeva ◽  
N. V. Kurbatova
Keyword(s):  
Characteristic Feature ◽  
Calcium Oxalate ◽  
Leaf Blade ◽  
Anatomical Study ◽  
Anatomical Structure ◽  
Calcium Oxalate Crystals ◽  
Oxalate Crystals

The features of the anatomical structure of Salsola arbuscula Pall., S. tragus L., S. paulsenii Litv. are presented. It is noted that the leaf blades of the studied species belong to the salsoloid type. The mesophyll of the leaf is centric. The hypoderma plays the role of the water-bearing parenchyma. In the water-bearing parenchyma of S. tragus and S.paulsenii calcium oxalate crystals have been found. In the central part of the leaf there is a single conducting beam of thecollateral type in all species. A characteristic feature in the anatomical study of the stem of S. tragus is the peculiarity ofthe collenchyma, which lies only in the area of protrusions and forms up to 7 layers of cells. The general features of theorganization of the studied species are the similarity in the succulent structure of the leaf blade, which causes large-cellwater-bearing parenchyma and the rounded shape of the cells in the three studied species of saltwort.

scholarly journals Studiul anatomic comparativ al frunzelor speciei Lycium barbarum L.

2021 ◽  
Vol XII (2(21)) ◽  
Author(s):  
Maria Tabara (Gorceag) ◽  
◽  
Nina Ciorchina ◽  
Mariana Trofim ◽  
Alina Cutcovschii-Muştuc ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Anatomical Study ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
Calcium Oxalate Crystals ◽  
Lycium Barbarum ◽  
Anatomical Structures ◽  
Republic Of Moldova ◽  
Oxalate Crystals ◽  
The Republic

A study has been carried out on the anatomical structures of the species Lycium barbarum L. and of the goji varieties from the collection of the National Botanical Garden (I) “Alexandru Ciubotaru”, grown under the pedo-climatic conditions of the Republic of Moldova. The comparative anatomical study was performed on a complex of anatomical indices: cuticle type, bristles, stomata, calcium oxalate crystals.

An SEM study of raphide crystal initials in the leaves of vitis (grape)

1995 ◽  
Vol 53 ◽  
pp. 984-985
Author(s):  
H. J. Arnott ◽  
M. A. Webb ◽  
L. E. Lopez
Keyword(s):  
Calcium Oxalate ◽  
Water Soluble ◽  
Calcium Oxalate Crystals ◽  
Calcium Oxalate Crystal ◽  
Oxalate Crystals ◽  
Large Numbers ◽  
Sem Study ◽  
The Matrix ◽  
Crystal Cells ◽  
Crystal Idioblast

Many papers have been published on the structure of calcium oxalate crystals in plants, however, few deal with the early development of crystals. Large numbers of idioblastic calcium oxalate crystal cells are found in the leaves of Vitis mustangensis, V. labrusca and V. vulpina. A crystal idioblast, or raphide cell, will produce 150-300 needle-like calcium oxalate crystals within a central vacuole. Each raphide crystal is autonomous, having been produced in a separate membrane-defined crystal chamber; the idioblast''s crystal complement is collectively embedded in a water soluble glycoprotein matrix which fills the vacuole. The crystals are twins, each having a pointed and a bidentate end (Fig 1); when mature they are about 0.5-1.2 μn in diameter and 30-70 μm in length. Crystal bundles, i.e., crystals and their matrix, can be isolated from leaves using 100% ETOH. If the bundles are treated with H2O the matrix surrounding the crystals rapidly disperses.

Oxalic acid and calcium oxalate produced by Leucostoma cincta and L. persoonii in culture and in peach bark tissues

1987 ◽  
Vol 65 (9) ◽  
pp. 1952-1956 ◽  
Author(s):  
J. A. Traquair
Keyword(s):  
Oxalic Acid ◽  
Calcium Oxalate ◽  
Crystal Morphology ◽  
Culture Media ◽  
Positive Staining ◽  
Acid Solutions ◽  
Calcium Oxalate Crystals ◽  
Oxalate Crystals ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes

Oxalic acid and crystals of calcium oxalate were produced during growth of Leucostoma cincta and L. persoonii on potato dextrose agar and in peach bark tissues. The identification of calcium oxalate was based on solubility characteristics, the results of KMnO4 titration, positive staining with silver nitrate – dithiooxamide, and crystal morphology as observed with light and scanning electron microscopes. Oxalic acid was detected by gas chromatography. This is the first report of oxalic acid production by both Leucostoma species causing peach canker. Calcium oxalate crystals observed on or near hyphae in culture were similar to crystals in artificially inoculated peach bark tissues. Addition of oxalic acid solutions alone to inner bark tissues caused maceration and necrosis. These results indicate a role for oxalic acid in the early stages of pathogenesis by Leucostoma spp. Tetragonal (bipyramidal) and prismatic calcium oxalate crystals formed on bark wounds treated with oxalic acid solutions were similar to those observed in infected tissues and in culture media amended with oxalic acid.

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