Foliar micromorphology, ultrastructure, and histochemical analysis of Barleria albostellata C.B. Clarke

Gangaram, Serisha; Naidoo, Yougasphree; Dewir, Yaser Hassan

doi:10.1016/j.sajb.2020.09.001

Cited by 5 publications

(10 citation statements)

References 71 publications

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“…The multi-angular-dendritic branched trichomes had a stem length of 554.10 ± 92.27 mm and a width of 28.55 ± 2.48 mm. Due to the longer length of glandular trichomes and their proximity to 8 glandular trichomes, it is likely that these structures may provide physical protection for glandular trichomes (Gangaram, 2020).…”

Section: Results Results Resultsmentioning

confidence: 99%

Anatomical and morphological structure of the leaf of the genus Malus spp.

Goncharovska

Szot

2023

Not Sci Biol

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The article describes changes in the structure, leaves, (including mesophyll structure, structure of the midrib, distribution of stomata, and the number of vascular bundles) in Malus during the growing season (from June to August) under the influence of prolonged drought. The leaves anatomy and morphology were investigated by methods of light and scanning electron microscopy. The study was carried out on four representatives of the genus Malus: M. niedzwetzkyana Borkh., M. baccata ‘Pendula’, M. domestica ‘Eliza Rathke’, M. domestica ‘Renet Simirenko’. The influence of drought on the size of the mesophyll of the leaf plate and the number of stomata along the stretch from June to August was studied. The cell circumference of the sclerenchyma ranged from μm in 27.33 (M. niedzwetzkyana) to 81.92 μm (in M. domestica ‘Elise Rathke’). The number of stomata varied from 214.0 units in (M. domestica ‘Renet Simirenko’) to 304.0 units in (M. baccata ‘Pendula’), length from 11.6 μm (M. baccata ‘Pendula’) to 28.63 μm (M. domestica ‘Elise Rathke’), width from 9.4 μm (M. domestica ‘Elise Rathke’) up to 21.8 μm (M. domestica ‘Elise Rathke’) μm. The length of the trichomes varied from 409.92 μm (M. domestica ‘Renet Simirenko’) to 745.09 μm (M. niedzwetzkyana). Also, the anocytic stomatal type, the number, different stomata and trichomes, the presence of wax on the cuticle, and the found druses of calcium oxalate in M. baccata ‘Pendula’, can be important for systematic phylogeny. Thanks to these studies, it is possible to suggest physiological adaptability of apple trees to prolonged drought, as well as to identify more resistant phenotypes for the breeding process to develop resistant cultivars.

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Section: Results Results Resultsmentioning

confidence: 99%

Anatomical and morphological structure of the leaf of the genus Malus spp.

Goncharovska

Szot

2023

Not Sci Biol

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“…Semi-thin (0.5–2 µm) and ultra-thin sections of leaf material of approximately 110 nm were prepared also for light microscopy. These sections were then mounted onto glass slides, stained with 0.05% aqueous solution of toluidine blue-O dissolved in 0.1% sodium carbonate at pH 11.1 [ 22 ], and observed using an Eclipse 80i light microscope (Nikon, Japan) [ 23 ].…”

Section: Methodsmentioning

confidence: 99%

The Micromorphology and Histochemistry of Foliar Mixed Indumentum of Leucas lavandulaefolia (Lamiaceae)

Naidoo

Dladla

Dewir

et al. 2021

Plants

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Leucas lavandulaefolia Sm. (Lamiaceae) is an important medicinal plant with a broad spectrum of pharmacological activities. This study aimed at characterizing the morphology, distribution, and chemical composition of the secretions of trichomes at different developmental stages on the leaves of L. lavandulaefolia, using light and electron microscopy. Morphological observations revealed the presence of bicellular non-glandular, glandular peltate, and capitate trichomes on both adaxial and abaxial leaf surfaces. The density of both non-glandular and glandular trichomes decreased with the progression of leaf development. Heads of peltate and short-stalked capitate trichomes were between 20.78–42.80 µm and 14.98–18.93 µm at different developmental stages. Furthermore, long-stalked capitate trichomes were rare and infrequent. Leaf sections revealed the presence of important secondary metabolites in glandular trichomes, i.e., terpenoids. This study represents the first report on the morphology and histochemistry of trichomes of L. lavandulaefolia; therefore, there is a great scope for further research in this field.

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“…Dendroid glandular trichomes are very rarely described in the literature, but they are not found only in Lamiaceae species; Gangaram et al [50] describe a similar type of trichome in Barleria albostellata C.B. Clarke and Ahmad [51] describe them in Dyschoriste vagans (Wight) Kuntze, from the Acanthaceae family, a family related to the Lamiaceae, both belonging to the Lamiales order [52].…”

Section: Type C4mentioning

confidence: 99%

Glandular Trichomes and Essential Oils Variability in Species of the Genus Phlomis L.: A Review

Gostin,

Blidar

2024

Plants

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The genus Phlomis is one of the largest genera in the Lamiaceae family and includes species used since ancient times in traditional medicine, as flavoring for food and as fragrance in cosmetics. The secretory structures (represented by glandular trichomes) as well as the essential oils produced by them constitute the subject of this review. While representatives of this genus are not typically regarded as large producers of essential oils compared to other species of the Lamiaceae family, the components identified in their essential oils and their biological properties necessitate more investigation of this genus. A comprehensive analysis of the specialized literature was conducted for each of the 93 currently accepted species to identify all the results obtained by researchers regarding the secretory structures and essential oils of this genus up to the present time. Glandular trichomes, still insufficiently studied, present morphological peculiarities that differentiate this genus within the family: they are of two categories: capitate (with a wide distribution in this genus) and dendroid. The peltate trichomes, characteristic of many species of this family, are absent. The essential oils from the species of the genus Phlomis have been much more widely studied than the secretory structures. They show considerable variability depending on the species and the environmental conditions.

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Foliar micromorphology, ultrastructure, and histochemical analysis of Barleria albostellata C.B. Clarke

Cited by 5 publications

References 71 publications

Anatomical and morphological structure of the leaf of the genus Malus spp.

Anatomical and morphological structure of the leaf of the genus Malus spp.

The Micromorphology and Histochemistry of Foliar Mixed Indumentum of Leucas lavandulaefolia (Lamiaceae)

Glandular Trichomes and Essential Oils Variability in Species of the Genus Phlomis L.: A Review

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