scholarly journals A comparative anatomical study of the genus Puschkinia Adams in Turkey

2020 ◽  
Vol 79 (1) ◽  
pp. 55-58
Author(s):  
Kadriye Yetişen ◽  
Hasan Yıldırım ◽  
Canan Özdemir

In the study, Puschkinia scilloides Adams, P. bilgineri Yıldırım, and P. peshmenii Rix et B. Mathew were compared anatomically. Although the stem vascular bundles were arranged in two rows in P. peshmenii, they can observed in three rows in P. scilloides and P. bilgineri. In addition, some differences were found, such as the metaxylem number in the root, number of vascular bundles in the scape, presence of raphide crystals, and number of protruding epidermis cells at the tip of the leaf. These differences have been found to be taxonomically useful for distinguishing these species. Moreover, similarities and differences between Puschkinia Adams and the taxonomically closely related Scilla L. section Chionodoxa Boiss. and Scilla bifolia L. taxa were also discussed.

2017 ◽  
Vol 35 (0) ◽  
Author(s):  
H. YILDIRIM ◽  
K. YETISEN ◽  
A. ÖZDEMIR ◽  
C. ÖZDEMIR

ABSTRACT In the present study Scilla luciliae, S. forbesii, S. sardensis, S. siehei, Scilla x allenii and S. bifolia are compared anatomically. Some differences have been found in root, scape, and leaf anatomy of the taxa, and commented. S. luciliae, S. forbesii, S. sardensis and S. siehei have a metaxylem at the center of the root, others have 3-4 number metaxylem. Vascular bundles in two row in S. luciliae and S. forbesii in a single row in S. sardensis, Scilla x allenii and S. bifolia though in three rows in S. siehei. Aerenchyma tissue is present in mesophyll of five taxa leaf except S. sardensis. The anatomical variations in the taxa have been investigated by means of numerical methods (Analysis of variance and Pearson correlation). By the analysis of the investigated taxa from 12 anatomy related characters, it has been also found that the results from numerical analysis of anatomy characters can provide additional evidences, which correspond to the anatomy for the recognition of the taxa.


2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Monick Lima Carvalho ◽  
Cláudia Elena Carneiro

Abstract: The Sapotaceae family is recognized for its economic importance, presenting food, medicinal and timber potential. Pouteria andarahiensis T.D.Penn., popularly known as "massaranduba", is endemic to Chapada Diamantina, Bahia, Brazil, and is currently classified on the IUCN red list as "endangered". Pouteria andarahiensis is little studied, highlighting this work as the first anatomical study for the species. Light microscopy and scanning electron microscopy techniques were used to perform anatomical studies. The species showed characters shared with the family (laticifers and malpiguiaceous trichomes), as well as diagnostic characters and associated with xeromorphy. The data obtained from the leaf architecture can assist in the identification of the species in a vegetative state, while the leaf surface provided unpublished data to the species, indicating the presence of a cuticle with complex ornamentation. Stand out as xeromorphic anatomical features, high stomatal density, high number of trichomes per area, sclerenchymatic columns in the mesophyll and a subepidermal sclerenchyma layer connecting the vascular bundles in the mesophyll.


2021 ◽  
Vol 27 (2) ◽  
Author(s):  
Smita Chaudhari

Plumbago is a traditional medicinal plant in Ayurveda. The paper presents anatomical study of leaf, petiole, stem and root of two species of Plumbago namely P. zeylanica, P. auriculata and, its relevance in discrimination of these two species. Anatomical features of leaf which are of diagnostic value in delimitation of both taxa are outline of T. S.,shape and size of epidermal cells, presence of sclerenchyma surrounding the vascular bundles, number of tannins cells. Characters of taxonomic significance in petiole anatomy are outline of T. S, presence of trichomes, shape and size of epidermal cells, abundance of collenchyma, arrangement and number of vascular bundles, presence of sclerenchyma surrounding vascular bundles, number of tannin cells. The diagnostically useful anatomical features of stem to discriminate both taxa of Plumbago are degree of elevation of stem ridges, occurrence of double layered epidermis, size of epidermal cells, distinctness of endodermis, abundance and distribution of pericyclicsclerenchyama, number of vascular bundles. Anatomical features of taxonomic significance in root are width of cortex and abundance of starch grains in cortex cells, abundance and distribution of pericyclics clerenchyama, amount of vascularization, distribution, diameter and density of vessels, width of medullary ray.


2021 ◽  
Vol 948 (1) ◽  
pp. 012014
Author(s):  
Trimanto ◽  
L Hapsari

Abstract Alpinia warburgii is a species of the Zingiberaceae family native to Sulawesi. This study aims to characterize the plant morphology; analyze the anatomical structure, histochemical localization, and secretory cell structure of the rhizome; also discuss the potential and conservation effort of the species. Anatomical study and histochemical tests were observed microscopically using the fresh preparation method and wet mounted slide. Histochemical tests carried out include starch, protein, lipid, tannin, alkaloid, and flavonoid. This study is considered the first report of histochemical tests on A. warburgii. The main morphological characteristics of A. warburgii are perennial herbaceous; inflorescence terminal and raceme; flowers white, labellum obovate with red lines in the middle, and flanked by light green edges; fruit globose, green when young and yellow when ripe. The rhizome anatomical structure comprises the epidermis, endodermis, hypodermis, parenchyma, cortex, and vascular bundles, classified as closed collateral type. Histochemical tests showed positive localization for starch, protein, alkaloids, flavonoids, and tannins. The density of flavonoids secretory cells is higher than tannins and alkaloids, which indicates its potential as medicine to be associated with antioxidant, antimicrobial, antiinflammation, and anticancer. In addition to in-situ, ex-situ conservation effort through propagation is also important to maintain the species.


2018 ◽  
Vol 27 (1) ◽  
pp. 69-74
Author(s):  
Kishwar Jahan Shethi ◽  
Mabia Khanam Doty ◽  
Saima Jahan Liza ◽  
Parveen Rashid

Recent investigation on the root, stem, leaf and petiole anatomy of Momordica charantia L. completed the detailed anatomical study of the genus Momordica from Bangladesh. Root has tetrach vascular bundles where thick patches of sclerenchyma cells encompassed the vessel cells. Five angular ridges and furrows are visible through stem transverse section typical to Cucurbitaceae. Total nine open, bicollateral fibro-vascular bundles are observed in stem crosssection where three large are in the center and others each are under the ridges. Midrib of the leaf is characterized by several double and scarcely seated stalkless globular cystoliths in the lower epidermis. Configuration of petiole is octagonal in shape with eight ridges where seven fibro vascular bundles situated as a ring. Stem and leaf has multicellular, unisireate blunt ended conical shaped trichomes where petiole has similar trichomes with both blunt and pointed head. Dhaka Univ. J. Biol. Sci. 27(1): 69-74, 2018 (January)


1998 ◽  
Vol 11 (6) ◽  
pp. 729 ◽  
Author(s):  
Stephen P. Teo ◽  
Noorma Wati Haron

On the basis of a comparative anatomical study of the leaf lamina and petiole of six genera of Icacinaceae in West Malaysia, these genera can be classified into four closely knit groups by virtue of their many shared characters: Group I comprises Cantleya, Gomphandra and Stemonurus whereas Groups II and III are made up of Gonocaryum and Sarcostigma, respectively. The climber genus Iodes is classified into Group IV. Taxonomically useful characters include the shape of the vascular bundles in both the midrib and petiole, the presence of funnel-shaped palisade cells, foliar sclereids, tannin crystals, hypodermis layer and accessory or wing bundles in the petiole. A key to the genera and the descriptions of each species and variety based on anatomy are given. Phylogenetic relationship among the genera are also discussed based on the study with data supplemented from other taxonomic sources.


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2929
Author(s):  
Letícia P. Poli ◽  
Lívia G. Temponi ◽  
Alessandra I. Coan

Introduction and AimsAnthuriumis the largest genus of Araceae, with 950 species distributed in the neotropics. Despite the great diversity of the genus, the knowledge of its floral vasculature is based on observations in only two species, viz.A. denudatumandA. lhotzkyanum, with remarkable variation in vascular carpellary supply: carpels are either vascularized by ventral bundles alone or by reduced dorsal bundles in addition to the ventral ones. Our main objective is to test this peculiar variation through a detailed anatomical study of the floral vasculature in taxa belonging to some sections ofAnthuriumdesignated as monophyletic groups in recent phylogenies.MethodsWe compare the floral vasculature of 20 neotropical species belonging to distinct sections ofAnthurium, using both light and confocal laser scanning microscopies.ResultsThe number and position of vascular bundles are constant within the tepals and stamens, regardless of the species and sections studied. However, the gynoecium vasculature exhibits variation between species belonging to the same or different sections. Our results reveal two patterns of vasculature: carpels vascularized by synlateral bundles alone (Pattern A) and carpels vascularized by both dorsal and synlateral bundles (Pattern B). Pattern A is shared by the majority of species studied here and corroborates the previous data in the literature. Pattern B occurs in three species:A. affine(Anthuriumsect. PachyneuriumseriesPachyneurium),A. obtusumandA. scandens(Anthuriumsect.Tetraspermium), described here for the first time for the genus.ConclusionsThe variation in the supply to the carpels inAnthuriumis corroborated here. However, our results in addition to those from the available literature suggest the existence of three patterns (A, B and C) of carpellary vasculature. Based on the recent phylogeny ofAnthuriumit is possible to notice that the three patterns of carpellary vasculature occur in representatives of Clade B and deserve to be investigated in a larger number of species. Pattern A could be a plesiomorphy for the genus and the occurrence of dorsal bundles could be a derived character. Our data contributes to the taxonomy and to the understanding of the floral evolution of the largest neotropical genus of Araceae.


1987 ◽  
Vol 9 (9) ◽  
pp. 129
Author(s):  
Amélia Moema Veiga Lopes ◽  
Maria Helena Cechella Achutti ◽  
Thereza Grassiolli ◽  
Sérgio Augusto de Loreto Bordignon

Leaves of odorous plants (sample A) and no odorous ones (sample B), showing diverse habits and growing in different habitats were studied. Clarified leaves were used for the blade architecture study and sections of alive and fixed leaves for the anatomical study. The determination of occupied area by epidermal cells, stomata and trichomes according to the stereological method was done. The structure of leaves is dorsiventral. They are amphistomatic with anomocytic stomata. The trichomes are simples conical, simple filiforme and biseriate vesicular glandular types. The venation is acrodromous. The vascular bundles have a collateral arrangement. The bundle sheath of the small vascular bundles located in the mesophyll is parenchymatic. The vessel members have simple perforation plates. Schizogenous secretory canals accompany the primary veins and sometimes the secondary veins. The collenchyma is present beneath the epidermis of the larger veins. The biseriate vesicular glandular trichomes differentiation, subtype α (sample A) and subtype β (sample B) and features frequent in sun (sample A) and shade leaves (sample B) are structural variation showed by these leaves.


Author(s):  
Khazal Dibba Wadi - Zeinab Nasrallah Salman

The current study is a comparative anatomical study of Diplotaxis spp DC species of the Brassicaceae which are growing in Diyala province { Diplotaxis acris (Fossk.) Boiss. Diplotaxis erucoid (L.) DC, Diplotaxis harra (Forssk) Boiss}. The anatomical study included the dissection of the stems, the petioles and the leaf blade. The results of the present study showed that the anatomical characteristics have a great taxonomic significance, which helps in isolation and diagnosis, through the many variations shown by the anatomical characteristics of the studied species. The stem showed significant anatomical properties in terms of the shape of the cross section. D.rucoid was characterized as having ribbed stems and was characterized by the presence of collenchyma cells at the corners of the ribs to give support and attribution as well as flexibility in motion. D.harra also characterized epidermis cells as rectangular. The cortex also varied in the species of cells, the number of rows of chlorenchyma and paranchyma, and the number and distribution of vascular bundles, the number of arms of wood and the number of vessels in each arm. The variances included the cross section of the leafblade and the shape of the cross-section was important in isolation and diagnosis. It also varied in thickness, epidermis, vascular forms, numbers, distribution, cortex thickness and layers. The leaves were Monoficial in type D.harra It is also characterized by its lack of sponge cells while the two species of D. acris and D. erucoid were Bificial. The vertical sections of leaves, especially the mesophyll, varied widely, in the thickness of blade, dermis, epidermis ,forms of the central vascular bundles and the preparation of the arms and elements. All these qualities have contributed as an addition of distinctive qualities to each important species in its isolation and diagnosis.


2015 ◽  
Vol 43 (1) ◽  
pp. 47-52
Author(s):  
Lavinia M. RUS ◽  
Irina I. IELCIU ◽  
Ramona PĂLTINEAN ◽  
Laurian VLASE ◽  
Cristina ŞTEFĂNESCU ◽  
...  

The purpose of this study consisted in the identification of the macroscopic and microscopic characters of the vegetative and reproductive organs of Bryonia alba L., by the analysis of vegetal material, both integral and as powder. Optical microscopy was used to reveal the anatomical structure of the vegetative (root, stem, tendrils, leaves) and reproductive (ovary, male flower petals) organs. Histo-anatomical details were highlighted by coloration with an original combination of reagents for the double coloration of cellulose and lignin. Scanning electronic microscopy (SEM) and stereomicroscopy led to the elucidation of the structure of tector and secretory trichomes on the inferior epidermis of the leaf. Micrographic analysis of the powder obtained from aerial parts revealed segments of each organ (e.g. stomata, trichomes) and confirmed furthermore the results obtained by the histo-anatomical studies. Sections achieved through vegetative organs reveal typical anatomical structures: a transition to the secondary structure for the root, a typical dicotyledons’ structure with bicollateral vascular bundles for the stem, a bifacial structure of the leaf and stem-like structures for the tendrils and petioles, which prove they are metamorphosis of the stem. Anatomical structure of reproductive organs was performed hereby for the first time and revealed a typical anatomical structure for the 3-lodged ovary and a leaf-like structure of the male flower petal. Some of the results obtained confirm existing data from the scientific literature and additional information have been provided, outlining features that were not previously reported, such as SEM analysis of the leaf trichomes and histo-anatomical structure of the reproductive organs.


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