scholarly journals Genetic enhancement of lodging resistance in rice due to the key cell wall polymer lignin, which affects stem characteristics

2018 ◽  
Vol 68 (5) ◽  
pp. 508-515 ◽  
Author(s):  
Sitong Liu ◽  
Yuwei Huang ◽  
Hai Xu ◽  
Minghui Zhao ◽  
Quan Xu ◽  
...  
Keyword(s):  
Cell Wall ◽  
Genetic Enhancement ◽  
Lodging Resistance ◽  
Cell Wall Polymer

scholarly journals Modification of Expansin Protein Abundance in Tomato Fruit Alters Softening and Cell Wall Polymer Metabolism during Ripening

1999 ◽  
Vol 11 (11) ◽  
pp. 2203-2216 ◽  
Author(s):  
David A. Brummell ◽  
Mark H. Harpster ◽  
Pedro M. Civello ◽  
Joseph M. Palys ◽  
Alan B. Bennett ◽  
...  
Keyword(s):  
Cell Wall ◽  
Tomato Fruit ◽  
Protein Abundance ◽  
Cell Wall Polymer

scholarly journals High-Affinity Interaction between the S-Layer Protein SbsC and the Secondary Cell Wall Polymer of Geobacillus stearothermophilus ATCC 12980 Determined by Surface Plasmon Resonance Technology

2007 ◽  
Vol 189 (19) ◽  
pp. 7154-7158 ◽  
Author(s):  
Judith Ferner-Ortner ◽  
Christoph Mader ◽  
Nicola Ilk ◽  
Uwe B. Sleytr ◽  
Eva M. Egelseer
Keyword(s):  
Amino Acids ◽  
Cell Wall ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Secondary Cell Wall ◽  
Geobacillus Stearothermophilus ◽  
Binding Behavior ◽  
Cell Wall Polymer ◽  
Secondary Cell Wall Polymer

ABSTRACT Surface plasmon resonance studies using C-terminal truncation forms of the S-layer protein SbsC (recombinant SbsC consisting of amino acids 31 to 270 [rSbsC31-270] and rSbsC31-443) and the secondary cell wall polymer (SCWP) isolated from Geobacillus stearothermophilus ATCC 12980 confirmed the exclusive responsibility of the N-terminal region comprising amino acids 31 to 270 for SCWP binding. Quantitative analyses indicated binding behavior demonstrating low, medium, and high affinities.

Imaging the dynamic deposition of cell wall polymer in xylem and phloem in Populus × euramericana

Planta ◽  
2018 ◽  
Vol 248 (4) ◽  
pp. 849-858 ◽  
Author(s):  
Kexia Jin ◽  
Xinge Liu ◽  
Kun Wang ◽  
Zehui Jiang ◽  
Genlin Tian ◽  
...  
Keyword(s):  
Cell Wall ◽  
Populus Euramericana ◽  
Cell Wall Polymer

scholarly journals Structural and Functional Analyses of the Secondary Cell Wall Polymer of Bacillus sphaericus CCM 2177 That Serves as an S-Layer-Specific Anchor

1999 ◽  
Vol 181 (24) ◽  
pp. 7643-7646 ◽  
Author(s):  
Nicola Ilk ◽  
Paul Kosma ◽  
Michael Puchberger ◽  
Eva M. Egelseer ◽  
Harald F. Mayer ◽  
...  
Keyword(s):  
Cell Wall ◽  
Hydrofluoric Acid ◽  
Secondary Cell Wall ◽  
Bacillus Sphaericus ◽  
Nuclear Magnetic Resonance Analysis ◽  
Terminal Part ◽  
Resonance Analysis ◽  
Cell Wall Polymer ◽  
Functional Analyses ◽  
Secondary Cell Wall Polymer

ABSTRACT Sacculi of Bacillus sphaericus CCM 2177 contain a secondary cell wall polymer which was completely extracted with 48% hydrofluoric acid. Nuclear magnetic resonance analysis showed that the polymer is composed of repeating units, as follows: →3)-[4,6-O-(1-carboxyethylidene)]∼0.5-β-d-ManpNAc-(1→4)-β-d-GlcpNAc-(1→. The N-terminal part of the S-layer protein carrying S-layer homologous motifs recognizes this polymer as a binding site.

scholarly journals The semi-dwarfing gene Rht-dp from dwarf polish wheat (Triticum polonicum L.) is the "Green Revolution” gene Rht-B1b

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Songyue Chai ◽  
Qin Yao ◽  
Xu Zhang ◽  
Xue Xiao ◽  
Xing Fan ◽  
...  
Keyword(s):  
Cell Wall ◽  
Green Revolution ◽  
Tetraploid Wheat ◽  
Reactive Oxygen ◽  
Cell Wall Structure ◽  
Wall Structure ◽  
Lodging Resistance ◽  
Dwarfing Gene ◽  
Triticum Polonicum ◽  
Grain Number Per Spike

Abstract Background The wheat dwarfing gene increases lodging resistance, the grain number per spike and harvest index. Dwarf Polish wheat (Triticum polonicum L., 2n = 4x = 28, AABB, DPW), initially collected from Tulufan, Xinjiang, China, carries a semi-dwarfing gene Rht-dp on chromosome 4BS. However, Rht-dp and its dwarfing mechanism are unknown. Results Homologous cloning and mapping revealed that Rht-dp is the ‘Green Revolution’ gene Rht-B1b. A haplotype analysis in 59 tetraploid wheat accessions showed that Rht-B1b was only present in T. polonicum. Transcriptomic analysis of two pairs of near-isogenic lines (NILs) of DPW × Tall Polish wheat (Triticum polonicum L., 2n = 4x = 28, AABB, TPW) revealed 41 differentially expressed genes (DEGs) as potential dwarfism-related genes. Among them, 28 functionally annotated DEGs were classed into five sub-groups: hormone-related signalling transduction genes, transcription factor genes, cell wall structure-related genes, reactive oxygen-related genes, and nitrogen regulation-related genes. Conclusions These results indicated that Rht-dp is Rht-B1b, which regulates pathways related to hormones, reactive oxygen species, and nitrogen assimilation to modify the cell wall structure, and then limits cell wall loosening and inhibits cell elongation, thereby causing dwarfism in DPW.

Chemical and ultrastructural studies on the distribution of sporopolleninlike biopolymers in six genera of lichen phycobionts

1985 ◽  
Vol 63 (12) ◽  
pp. 2221-2230 ◽  
Author(s):  
Ueli Brunner ◽  
Rosmarie Honegger
Keyword(s):  
Cell Wall ◽  
Cell Walls ◽  
Resistant Cell ◽  
Wall Layer ◽  
Conclusive Evidence ◽  
The Other ◽  
Chemical Methods ◽  
Ultrastructural Studies ◽  
Cell Wall Polymer ◽  
Infrared Absorption Spectra

Cell walls of cultured lichen phycobionts of the genera Coccomyxa, Elliptochloris, Myrmecia, Pseudochlorella, Trebouxia, and Trentepohlia were investigated with cytological and chemical methods with regard to the presence or absence of trilaminar sheaths and (or) resistant biopolymers. Trilaminar cell wall layers occurred in Coccomyxa, Elliptochloris, Myrmecia, and (less distinctly) Pseudochlorella species. A biopolymer highly resistant to nonoxidative degradation by phosphoric acid occurred only in the isolated and vigorously extracted cell walls of Coccomyxa and Elliptochloris species. The walls of all the other phycobionts, including Myrmecia and Pseudochlorella, were totally degraded, showing that a trilaminar wall layer is not conclusive evidence for the presence of a resistant cell wall polymer. The infrared absorption spectra of the degradation-resistant cell wall polymer of Coccomyxa and Elliptochloris species were not fully identical with those of natural sporopollenins. When the widely used, but chemically less appropriate acetolysis method was applied to either entire cells or isolated but not fully extracted cell walls of Coccomyxa, Elliptochloris, Myrmecia, Pseudochlorella, Trebouxia, and Trentepohlia species, they all yielded acetolysis-resistant residues whose infrared spectra resembled natural sporopollenin.

scholarly journals The semi-dwarfing gene Rht-dp from dwarf Polish wheat (Triticum polonicum L.) is the “Green Revolution” gene Rht-B1b

2020 ◽  
Author(s):  
Songyue Chai ◽  
Qin Yao ◽  
Xu Zhang ◽  
Xue Xiao ◽  
Xing Fan ◽  
...  
Keyword(s):  
Cell Wall ◽  
Green Revolution ◽  
Reactive Oxygen ◽  
Cell Wall Structure ◽  
Wall Structure ◽  
Lodging Resistance ◽  
Dwarfing Gene ◽  
Triticum Polonicum ◽  
Grain Number Per Spike ◽  
Transcription Factor Genes

Abstract Background The wheat dwarfing gene improves lodging resistance, and increases the grain number per spike and harvest index. Dwarf polish wheat (Triticum polonicum L., 2n = 4x = 28, AABB, DPW), initially collected from Tulufan, Xinjiang, China, carries a semi-dwarfing gene Rht-dp on chromosome 4BS. However, Rht-dp and its dwarfing mechanism are unknown. Results Homologous cloning and fine mapping revealed that Rht-dp is the ‘Green Revolution’ gene Rht-B1b. A haplotype analysis showed that Rht-B1b was only present in T. polonicum. Transcriptomic analysis of two pairs of near-isogenic lines (NILs) of DPW × TPW revealed 41 differentially expressed genes (DEGs) as potential dwarfism-related genes. Among them, 28 functionally annotated DEGs were classed into five sub-groups: hormone-related signalling transduction genes, transcription factor genes, cell wall structure-related genes, reactive oxygen-related genes, and nitrogen regulation-related genes. Conclusions These results indicated that Rht-dp is Rht-B1b, which regulates pathways related to hormones, reactive oxygen species, and nitrogen assimilation to modify the cell wall structure, and then limits cell wall loosening and inhibits cell elongation, thereby causing dwarfism in DPW.

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