Glandular trichomes of the leaves in three Doronicum species (Senecioneae, Asteraceae): morphology, histochemistry, and ultrastructure

Muravnik, Lyudmila E.; Kostina, O. V.; Mosina, Anna A.

doi:10.1007/s00709-018-01342-2

Cited by 26 publications

(23 citation statements)

References 66 publications

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“…Such a structure has been described in the cells of various nectary types in many species (e.g. Stpiczyńska 2003;Wist and Davis 2006;Rocha and Machado 2009;Antoń and Kamińska 2015;Weryszko-Chmielewska and Chwil 2016) as well as in other plant glandular structures-osmophores (García et al 2007;Płachno et al 2010;Kowalkowska et al 2012Kowalkowska et al , 2014Kowalkowska et al , 2017Paiva et al 2019), collectors (Tresmondi et al 2017) and trichomes, which produce a lipophilic secretion (Machado et al 2017;Muravnik et al 2019). Interestingly, we found polysaccharide micro-canals in the cuticular layer of the spur papillae.…”

Section: Discussionsupporting

confidence: 67%

Flower nectar trichome structure of carnivorous plants from the genus butterworts Pinguicula L. (Lentibulariaceae)

et al. 2019

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Pinguicula (Lentibulariaceae) is a genus comprising around 96 species of herbaceous, carnivorous plants, which are extremely diverse in flower size, colour and spur length and structure as well as pollination strategy. In Pinguicula, nectar is formed in the flower spur; however, there is a gap in the knowledge about the nectary trichome structure in this genus. Our aim was to compare the nectary trichome structure of various Pinguicula species in order to determine whether there are any differences among the species in this genus. The taxa that were sampled were Pinguicula moctezumae, P. moranensis, P. rectifolia, P. emarginata and P. esseriana. We used light microscopy, histochemistry, scanning and transmission electron microscopy to address those aims. We show a conservative nectary trichome structure and spur anatomy in various Mexican Pinguicula species. The gross structural similarities between the examined species were the spur anatomy, the occurrence of papillae, the architecture of the nectary trichomes and the ultrastructure characters of the trichome cells. However, there were some differences in the spur length, the size of spur trichomes, the occurrence of starch grains in the spur parenchyma and the occurrence of cell wall ingrowths in the terminal cells of the nectary trichomes. Similar nectary capitate trichomes, as are described here, were recorded in the spurs of species from other Lentibulariaceae genera. There are many ultrastructural similarities between the cells of nectary trichomes in Pinguicula and Utricularia.

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Section: Discussionsupporting

confidence: 67%

Flower nectar trichome structure of carnivorous plants from the genus butterworts Pinguicula L. (Lentibulariaceae)

et al. 2019

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“…In addition, such cutinization contributes to the mechanical support of the multicellular head, which develops after completion of cell divisions [19]. In glandular trichomes that do not have a large disc-shaped head, barrier cells are absent, as it was found in Asteraceae family plants [22,23,41]. At the base of the entire multicellular trichome structure, one or more basal cells are located.…”

Section: Structure and Distribution Of The Glandular Trichomesmentioning

confidence: 99%

“…To determine the chemical composition of accumulated substances, methods of histochemistry, immunocytochemistry, and analytical chemistry are usually used. A series of histochemical tests and fluorescent markers reveals the presence of lipids [36,37], terpenes [38,39], sesquiterpene lactones [40,41], flavonoids [23,42], polyphenols [25,43], and alkaloids [18,44]. The activity of the biosynthesis enzymes for secondary metabolites belonging to different classes, as well as the intracellular localization of these enzymes in the glandular trichomes, was demonstrated in studies based on immunofluorescence and immunogold labeling [45][46][47][48].…”

Section: Introductionmentioning

confidence: 99%

The Structural Peculiarities of the Leaf Glandular Trichomes: A Review

Muravnik

2020

Reference Series in Phytochemistry

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Leaf glandular trichomes are multicellular secretory structures that arise from protodermal cells. They are characterized by a diverse form, localization, density, and composition of secreted substances. Formation of the glandular trichomes is caused by the need to protect plants from various biotic and abiotic factors, including herbivorous insects, fungi, pathogens, extensive light, UVB radiation, or high temperature. The main feature of the glandular trichomes is an ability to synthesize and accumulate the various compounds of primary and secondary metabolism. Morphology, development, ultrastructural characteristics of the cells producing the secondary compounds, content of the secretory products, as well as mechanisms of secretion are discussed in this chapter.

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“…Glandular trichomes produce bioactive substances with various properties for pharmaceutical and industrial applications (Kjaer et al 2012;Tozin et al 2017;Chwil and Kostryco 2018;Chwil et al 2013;Mayer et al 2013;Weryszko-Chmielewska and Chwil 2017). Excretion from a periplasmic space of the upper cell layers pass through the cell wall, accumulate in the subcuticular cavity, and rupture it (Muravnik et al 2019). Depending on the function, each morphotype of these glands is characterised by varied responses in the defence of plants against environmental factors (Tozin et al 2017;De Vargas et al 2019).…”

Section: Micromorphologymentioning

confidence: 99%

Histochemical assays of secretory trichomes and the structure and content of mineral nutrients in Rubus idaeus L. leaves

Chwil

Kostryco

2019

Protoplasma

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Leaves of Rubus idaeus are a raw material, ingredients of herbal blend, and a source of antioxidants. There are no data concerning histochemistry of trichomes, and little is known about the leaf structure of this species. The aim of this study was to determine the histochemistry of active compounds and the structure of glandular trichomes, micromorphology, anatomy, and ultrastructure of leaves as well as content of elements. To determine the histochemistry of glandular trichomes, different chemical compounds were used. The leaf structure was analysed using light, scanning, and transmission electron microscopes. The content of elements was determined with atomic absorption spectrometry, and the microanalysis of the epidermis ultrastructure was carried out with a transmission electron microscope equipped with a digital X-ray analyser. In glandular trichomes, polyphenols, terpenes, lipids, proteins, and carbohydrates were identified. The main elements in the ultrastructure of the epidermis were Na, Mo, Se, Ca, and Mg. In dry matter of leaves, K, Mg, Ca, P, and Fe were dominant. Infusions from leaves are safe for health in terms of the Cd and Pb concentrations. Leaves can be a valuable raw material. Non-glandular trichomes prevent clumping of mixed raw materials in herbal mixtures.

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Glandular trichomes of the leaves in three Doronicum species (Senecioneae, Asteraceae): morphology, histochemistry, and ultrastructure

Cited by 26 publications

References 66 publications

Flower nectar trichome structure of carnivorous plants from the genus butterworts Pinguicula L. (Lentibulariaceae)

Flower nectar trichome structure of carnivorous plants from the genus butterworts Pinguicula L. (Lentibulariaceae)

The Structural Peculiarities of the Leaf Glandular Trichomes: A Review

Histochemical assays of secretory trichomes and the structure and content of mineral nutrients in Rubus idaeus L. leaves

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