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Stellate trichomes in Solanaceae.2a to 2d. While 2e revealed Spine-like trichome in S. nigrum Linn. 2f: Glandular trichome in Solanaceae. 2g to 2r: Simple uniseriate trichomes in Solanaceae.
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Context 1
... foliar epidermis possessed spine-like uniseriate trichomes, (figure 2e which signified a kind of oil secretory function which gave the leaves and stems glossary outlook. (Figure 2q). The presence of tapering trichomes was also discovered in Schwenckia, (see figure 3g). ...
Context 2
... showed tricellular glandular trichome with bulge ends. (Figures 2h and 3v). Plate 6c: Physalis angulata Linn. ...
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... Trikoma tersebut terdiri atas sel tangkai dan sel kepala (Gambar 3). Trikoma merupakan salah satu ciri yang digunakan sebagai karakter diagnositik untuk mengidentifikasi tumbuhan pada tingkat spesies dan genus (Wahua & Edwin-Wosu, 2016). Jenis, ukuran, dan kelimpahan trikoma berfungsi sebagai karakter taksonomi yang penting (Bar & Shtein, 2019). ...
Physalis angulata is a member of the Solanaceae which can be used as a medicinal plant. The aim of this study was to identify the secretory structure of the leaves and stems of P. angulata. Histological studies of the secretory structure of the leaves and stems of P. angulata were carried out. P. angulata has a secretory structure in the form of trichomes. The trichomes are multicellular capitate gland trichomes consisting of stalk cells and head cells. The trichomes are distributed in the epidermis of the leaves and stems. The size of the head and stalk cells of the trichomes varies. The highest density of trichomes was found in the epidermis of the stem.
... The glandular trichomes in Solanaceae, as the type VI trichomes of tomato, can produce exudates containing toxic acyl sugars, which is known to provide high level of resistance against a few phytophagous arthropods (Wahua and Edwin-Wosu 2016). Among the glandular trichomes of Solanaceae, presence of amphipathic sugar esters in primitive tomato Lycopersicon pennellii and potato Solanum berthaultii species, and of diterpenoid cembratriene-ol in tobacco Nicotiana tabacum are linked to insect and pest resistance (Goffreda et al. 1990, Steffens and Walters 1990, Wang et al. 2001. ...
Solanaceous plants are ubiquitous and are able to colonize degraded, abandoned and metal polluted habitats. Members of the family have evolved interesting extrinsic and intrinsic traits to combat the metal toxicity in multiple ways. Indumentum constituted mostly of trichome layer provides structural defense for both biotic stress (herbivory, oviposition, microbial pathogenesis) and abiotic stress (like drought, heat, freezing, photooxidation and UV radiation). Plants with heavy metal tolerance can accumulate toxic heavy metals in their trichomes as a part of their elemental defense detoxification strategy. Apart from the canonical functions, trichomes support ion and metal homeostasis, including the sequestration, compartmentalization, accumulation and excretion of heavy metals in many ways. The trichomes in Solanaceae are known to have a key role in the detoxification of Cd, Ni, Pb and Zn. Expressed sequence tag (EST)‐based large‐scale gene analysis in tobacco has indicated that trichomes are biologically active and stress–responsive structures. Trichome secretions and exudates also play an active role in metal detoxification process. Given that trichomes provide chemical defense from heavy metal stresses in the form of sequestration and extrusion, the plants having trichomes have potential role in remediation of contaminated soils. Solanaceae trichomes can serve as important model tissues that can be modified to attenuate metal toxicity, serve as environmental indicators and enhance phytoremediation potential of the family.
