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. 2020 Nov 12;252(6):102. doi: 10.1007/s00425-020-03513-z

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 6 — Ultrastructural traits of immature glandular trichomes of Hartweg's locust (TEM). a–c Trichomes in the initial stage of development. d Cells with a prominent nucleus with nucleoli, plastids, mitochondria, and small vacuoles with flocculent precipitates of tannins (black arrows). e Fragment of a cell with a vacuole with an electron-dense deposit of tannin near the tonoplast (double arrows) and cytoplasm with mitochondria and plastids. f Visible plastids in the cytoplasm and plasmodesmata (arrowheads) in the cell walls. g Apical fragment of a trichome with a thin cuticle on the surface. h Visible plastids with starch grains, mitochondria, ER profiles, and plasmodesmata (arrowhead) in the cell walls. i Visible plastids with starch grains and thylakoids (white arrows). j Visible plastids with starch grains, ER profiles, and Golgi apparatus with vesicles; Va vacuoles, Nu nucleus, Nc nucleoli, Pl plastids, Sg starch grains, Mi mitochondria, Pl plasmodesmata, Cw cell walls, Cu cuticle, ER endoplasmic reticulum, Is intercellular space, Go Golgi apparatus. Scale bars = 10 µm (b, c), 5 µm (a), 2 µm (d), 1 µm (e, f, h), 500 nm (g), 200 nm (i, j)