scholarly journals COBRA-LIKE2, a Member of the Glycosylphosphatidylinositol-Anchored COBRA-LIKE Family, Plays a Role in Cellulose Deposition in Arabidopsis Seed Coat Mucilage Secretory Cells,

2015 ◽  
Vol 167 (3) ◽  
pp. 711-724 ◽  
Author(s):  
Daniela Ben-Tov ◽  
Yael Abraham ◽  
Shira Stav ◽  
Kevin Thompson ◽  
Ann Loraine ◽  
...  
Keyword(s):  
Seed Coat ◽  
Secretory Cells ◽  
Arabidopsis Seed ◽  
Cellulose Deposition ◽  
Seed Coat Mucilage

Galactoglucomannan structure of Arabidopsis seed‐coat mucilage in GDP ‐mannose synthesis impaired mutants

2021 ◽  
Author(s):  
Naho Nishigaki ◽  
Yoshihisa Yoshimi ◽  
Hiroaki Kuki ◽  
Tadashi Kunieda ◽  
Ikuko Hara‐Nishimura ◽  
...  
Keyword(s):  
Seed Coat ◽  
Arabidopsis Seed ◽  
Seed Coat Mucilage

scholarly journals GALACTURONOSYLTRANSFERASE-LIKE5 Is Involved in the Production of Arabidopsis Seed Coat Mucilage

2013 ◽  
Vol 163 (3) ◽  
pp. 1203-1217 ◽  
Author(s):  
Yingzhen Kong ◽  
Gongke Zhou ◽  
Ashraf A. Abdeen ◽  
James Schafhauser ◽  
Beth Richardson ◽  
...  
Keyword(s):  
Seed Coat ◽  
Arabidopsis Seed ◽  
Seed Coat Mucilage

scholarly journals Identification and Characterization of Arabidopsis Seed Coat Mucilage Proteins

2016 ◽  
Vol 173 (2) ◽  
pp. 1059-1074 ◽  
Author(s):  
Allen Yi-Lun Tsai ◽  
Tadashi Kunieda ◽  
Jason Rogalski ◽  
Leonard J. Foster ◽  
Brian E. Ellis ◽  
...  
Keyword(s):  
Seed Coat ◽  
Arabidopsis Seed ◽  
Seed Coat Mucilage ◽  
Identification And Characterization

scholarly journals Integument-Specific Transcriptional Regulation in the Mid-Stage of Flax Seed Development Influences the Release of Mucilage and the Seed Oil Content

Cells ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2677
Author(s):  
Fabien Miart ◽  
Jean-Xavier Fontaine ◽  
Gaëlle Mongelard ◽  
Christopher Wattier ◽  
Michelle Lequart ◽  
...  
Keyword(s):  
Seed Development ◽  
Seed Coat ◽  
Seed Oil ◽  
Recombinant Inbred Lines ◽  
Secretory Cells ◽  
Seed Oil Content ◽  
Linum Usitatissimum L ◽  
Oil Synthesis ◽  
Spatio Temporal ◽  
Seed Coat Mucilage

Flax (Linum usitatissimum L.) seed oil, which accumulates in the embryo, and mucilage, which is synthesized in the seed coat, are of great economic importance for food, pharmaceutical as well as chemical industries. Theories on the link between oil and mucilage production in seeds consist in the spatio-temporal competition of both compounds for photosynthates during the very early stages of seed development. In this study, we demonstrate a positive relationship between seed oil production and seed coat mucilage extrusion in the agronomic model, flax. Three recombinant inbred lines were selected for low, medium and high mucilage and seed oil contents. Metabolite and transcript profiling (1H NMR and DNA oligo-microarrays) was performed on the seeds during seed development. These analyses showed main changes in the seed coat transcriptome during the mid-phase of seed development (25 Days Post-Anthesis), once the mucilage biosynthesis and modification processes are thought to be finished. These transcriptome changes comprised genes that are putatively involved in mucilage chemical modification and oil synthesis, as well as gibberellic acid (GA) metabolism. The results of this integrative biology approach suggest that transcriptional regulations of seed oil and fatty acid (FA) metabolism could occur in the seed coat during the mid-stage of seed development, once the seed coat carbon supplies have been used for mucilage biosynthesis and mechanochemical properties of the mucilage secretory cells.

scholarly journals INTEGUMENT-SPECIFIC TRANSCRIPTIONAL REGULATION IN THE MID-STAGE OF FLAX SEED DEVELOPMENT INFLUENCES THE RELEASE OF MUCILAGE AND THE SEED OIL CONTENT

2021 ◽  
Author(s):  
Fabien Miart ◽  
Jean-Xavier Fontaine ◽  
Gaëlle Mongelard ◽  
Christopher Wattier ◽  
Michelle Lequart-Pillon ◽  
...  
Keyword(s):  
Seed Development ◽  
Seed Coat ◽  
Seed Oil ◽  
Recombinant Inbred Lines ◽  
Secretory Cells ◽  
Seed Oil Content ◽  
Oil Synthesis ◽  
Great Economic Importance ◽  
Spatio Temporal ◽  
Seed Coat Mucilage

ABSTRACTFlax (Linum usitatissimum L.) seed oil, which accumulates in the embryo, and mucilage, which is synthesized in the seed coat, are of great economic importance for food, pharmaceutical as well as chemical industries. Theories on the link between oil and mucilage production in seeds consist in the spatio-temporal competition of both compounds for photosynthates during the very early stages of seed development. In this study, we demonstrate a positive relationship between seed oil production and seed coat mucilage extrusion in the agronomic model, flax. Three recombinant inbred lines were selected for low, medium and high mucilage and seed oil contents. Metabolite and transcript profiling (1H NMR and DNA oligo-microarrays) was performed on the seeds during seed development. These analyses showed main changes in the seed coat transcriptome during the mid-phase of seed development (25 Days Post-Anthesis), once the mucilage biosynthesis and modification processes are thought to be finished. These transcriptome changes comprised genes that are putatively involved in mucilage chemical modification and oil synthesis, as well as gibberellic acid (GA) metabolism. The results of these integrative biology approach, suggest that transcriptional regulations of seed oil and fatty acid (FA) metabolism could occur in the seed coat during the mid-stage of seed development, once the seed coat carbon supplies have been used for mucilage biosynthesis and mechanochemical properties of the mucilage secretory cells.

KNAT7 regulates xylan biosynthesis in Arabidopsis seed-coat mucilage

2020 ◽  
Vol 71 (14) ◽  
pp. 4125-4139
Author(s):  
Yiping Wang ◽  
Yan Xu ◽  
Shengqiang Pei ◽  
Mingmin Lu ◽  
Yingzhen Kong ◽  
...  
Keyword(s):  
Plant Cell ◽  
Seed Coat ◽  
Cell Walls ◽  
Wall Structure ◽  
Plant Cell Walls ◽  
Arabidopsis Seed ◽  
Ideal System ◽  
Xylan Biosynthesis ◽  
Seed Coat Mucilage ◽  
Seed Mucilage

Abstract As a major hemicellulose component of plant cell walls, xylans play a determining role in maintaining the wall structure. However, the mechanisms of transcriptional regulation of xylan biosynthesis remain largely unknown. Arabidopsis seed mucilage represents an ideal system for studying polysaccharide biosynthesis and modifications of plant cell walls. Here, we identify KNOTTED ARABIDOPSIS THALIANA 7 (KNAT7) as a positive transcriptional regulator of xylan biosynthesis in seed mucilage. The xylan content was significantly reduced in the mucilage of the knat7-3 mutant and this was accompanied by significantly reduced expression of the xylan biosynthesis-related genes IRREGULAR XYLEM 14 (IRX14) and MUCILAGE MODIFIED 5/MUCILAGE-RELATED 21 (MUM5/MUCI21). Electrophoretic mobility shift assays, yeast one-hybrid assays, and chromatin immunoprecipitation with quantitative PCR verified the direct binding of KNAT7 to the KNOTTED1 (KN1) binding site [KBS,TGACAG(G/C)T] in the promoters of IRX7, IRX14, and MUM5/MUCI21 in vitro, in vivo, and in planta. Furthermore, KNAT7 directly activated the expression of IRX14 and MUM5/MUCI21 in transactivation assays in mesophyll protoplasts, and overexpression of IRX14 or MUM5/MUCI21 in knat7-3 partially rescued the defects in mucilage adherence. Taken together, our results indicate that KNAT7 positively regulates xylan biosynthesis in seed-coat mucilage via direct activation of the expression of IRX14 and MUM5/MUCI21.

Tubby-like Protein 2 regulates homogalacturonan biosynthesis in Arabidopsis seed coat mucilage

2019 ◽  
Vol 99 (4-5) ◽  
pp. 421-436 ◽  
Author(s):  
Meng Wang ◽  
Zongchang Xu ◽  
Rana Imtiaz Ahmed ◽  
Yiping Wang ◽  
Ruibo Hu ◽  
...  
Keyword(s):  
Seed Coat ◽  
Arabidopsis Seed ◽  
Seed Coat Mucilage

scholarly journals SALT-OVERLY SENSITIVE5 Mediates Arabidopsis Seed Coat Mucilage Adherence and Organization through Pectins

2014 ◽  
Vol 165 (3) ◽  
pp. 991-1004 ◽  
Author(s):  
Jonathan S. Griffiths ◽  
Allen Yi-Lun Tsai ◽  
Hui Xue ◽  
Cătălin Voiniciuc ◽  
Krešimir Šola ◽  
...  
Keyword(s):  
Seed Coat ◽  
Arabidopsis Seed ◽  
Seed Coat Mucilage
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