Results 21 to 30 of about 15,792 (223)
Xylem Parenchyma—Role and Relevance in Wood Functioning in Trees
Woody plants are characterised by a highly complex vascular system, wherein the secondary xylem (wood) is responsible for the axial transport of water and various substances.
Aleksandra Słupianek +2 more
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Xylem versus phloem in secondary growth: a balancing act mediated by gibberellins [PDF]
This article comments on: Ben-Targem M, Ripper D, Bayer M, Ragni L. 2021. Auxin and gibberellin signaling cross-talk promotes hypocotyl xylem expansion and cambium homeostasis. Journal of Experimental Botany 72, 3647–3660.
Carlsbecker, Annelie, Augstein, Frauke
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Pectin is a major component of plant cell walls, and the structure of pectin impacts on the properties of wood. Although we know that pectate lyase (PL, EC 4.2.2.2) has a major influence on the structure of pectin, our knowledge of Pectate lyase-like ...
Yun Bai +6 more
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Role of Cytokinin in Differentiation of Secondary Xylem Fibers [PDF]
The differentiation of secondary xylem fibers was studied in cultured hypocotyl segments of Helianthus annuus L. It is shown that cytokinin is both a limiting and controlling factor in the early stages of fiber differentiation. In the absence of kinetin or zeatin, there was no fiber differentiation. However, cytokinin could induce fiber differentiation
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THE DEVELOPMENT OF THE SECONDARY WALL OF THE XYLEM IN ACER PSEUDOPLATANUS [PDF]
The development of the spirally thickened xylem element from a cambium initial of sycamore Acer pseudoplatanus has been traced by means of electron microscopy. The narrow elongated cambial initial undergoes considerable expansion in all dimensions. The cytoplasm at this stage is distributed in a thin skin between the cell wall and a large vacuole.
F B, WOODING, D H, NORTHCOTE
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The present study focuses on the cambium and the anatomy of secondary tissues (xylem – wood and phloem) of Siberian poplar (Populus sibirica) and Siberian elm (Ulmus pumila) grown in a plantation in the semi-arid Mongolian steppe.
Anastazija Dimitrova +8 more
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Arabidopsis NAC domain proteins, VND1 to VND5, are transcriptional regulators of secondary wall biosynthesis in vessels. [PDF]
One of the most prominent features of xylem conducting cells is the deposition of secondary walls. In Arabidopsis, secondary wall biosynthesis in the xylem conducting cells, vessels, has been shown to be regulated by two VASCULAR-RELATED NAC-DOMAIN (VND)
Jianli Zhou, Ruiqin Zhong, Zheng-Hua Ye
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EFFECT OF 2,6-DICHLOROBENZONITRILE (DCB) ON SECONDARY WALL DEPOSITION AND LIGNIFICATION IN THE STEM OF HIBISCUS CANNABINUS L. [PDF]
Light and electron microscopic studies were carried out on the secondary xylem of actively growing shoots of Hibiscus cannabinus treated with cellulose synthesis inhibitor 2,6-dichlorobenzonitrile (DCB). Treatment with 20µM DCB induced differentiation of
PRAMOD Sivan, KARUMANCHI Sambasiva Rao
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Molecular mechanisms for vascular development and secondary cell wall formation
Vascular tissues are important for transporting water and nutrients throughout the plant and as physical support of upright growth. The primary constituents of vascular tissues, xylem and phloem, are derived from the meristematic vascular procambium and ...
Jung Hyun eYang +2 more
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A Small Guanosine Triphosphate Binding Protein PagRabE1b Promotes Xylem Development in Poplar
Rab GTPases are the subfamily of the small guanosine triphosphate (GTP)-binding proteins which participated in the regulation of various biological processes. Recent studies have found that plant Rabs play some specific functions.
Ying-Li Liu +8 more
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