Microtubules, cell wall deposition and the determination of plant cell shape

Nature ◽  
1979 ◽  
Vol 278 (5700) ◽  
pp. 167-168 ◽  
Author(s):  
HARVEY J. MARCHANT
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Cell Shape ◽  
Wall Deposition ◽  
Cell Wall Deposition

scholarly journals Membrane-associated xylanase-like protein OsXYN1 is required for normal cell wall deposition and plant development in rice

2020 ◽  
Vol 71 (16) ◽  
pp. 4797-4811 ◽  
Author(s):  
Bin Tu ◽  
Tao Zhang ◽  
Yuping Wang ◽  
Li Hu ◽  
Jin Li ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Growth ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Mutant Cell ◽  
Middle Lamella ◽  
Wall Deposition ◽  
Physiological Analysis ◽  
Cell Wall Deposition ◽  
Gh10 Family

Abstract The rice (Oryza sativa) genome encodes 37 putative β-1,4-xylanase proteins, but none of them has been characterized at the genetic level. In this work, we report the isolation of slim stem (ss) mutants with pleiotropic defects, including dwarfism, leaf tip necrosis, and withered and rolled leaves under strong sunlight. Map-based cloning of the ss1 mutant identified the candidate gene as OsXyn1 (LOC_03g47010), which encodes a xylanase-like protein belonging to the glycoside hydrolase 10 (GH10) family. OsXyn1 was found to be widely expressed, especially in young tissues. Subcellular localization analysis showed that OsXyn1 encodes a membrane-associated protein. Physiological analysis of ss1 and the allelic ss2 mutant revealed that water uptake was partially compromised in these mutants. Consistently, the plant cell wall of the mutants exhibited middle lamella abnormalities or deficiencies. Immunogold assays revealed an unconfined distribution of xylan in the mutant cell walls, which may have contributed to a slower rate of plant cell wall biosynthesis and delayed plant growth. Additionally, water deficiency caused abscisic acid accumulation and triggered drought responses in the mutants. The findings that OsXyn1 is involved in plant cell wall deposition and the regulation of plant growth and development help to shed light on the functions of the rice GH10 family.

Diffuse growth, a new pattern of cell wall deposition for the Rhodophyta

Phycologia ◽  
1990 ◽  
Vol 29 (1) ◽  
pp. 98-102 ◽  
Author(s):  
D. J. Garbary ◽  
D. J. Belliveau
Keyword(s):  
Cell Wall ◽  
Wall Deposition ◽  
Diffuse Growth ◽  
Cell Wall Deposition

scholarly journals The Apical Actin Fringe Contributes to Localized Cell Wall Deposition and Polarized Growth in the Lily Pollen Tube

2014 ◽  
Vol 166 (1) ◽  
pp. 139-151 ◽  
Author(s):  
Caleb M. Rounds ◽  
Peter K. Hepler ◽  
Lawrence J. Winship
Keyword(s):  
Cell Wall ◽  
Pollen Tube ◽  
Polarized Growth ◽  
Lily Pollen ◽  
Wall Deposition ◽  
Cell Wall Deposition
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