Association Mapping of LpCCR1 with Lignin Content and Cell Wall Digestibility of Perennial Ryegrass

2016 ◽  
pp. 219-224
Author(s):  
F. R. D. van Parijs ◽  
T. Ruttink ◽  
G. Haesaert ◽  
I. Roldán-Ruiz ◽  
H. Muylle
Keyword(s):  
Cell Wall ◽  
Association Mapping ◽  
Perennial Ryegrass ◽  
Lignin Content ◽  
Cell Wall Digestibility

scholarly journals Loss of function of folylpolyglutamate synthetase 1 reduces lignin content and improves cell wall digestibility in Arabidopsis

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Avinash C. Srivastava ◽  
Fang Chen ◽  
Tui Ray ◽  
Sivakumar Pattathil ◽  
Maria J. Peña ◽  
...  
Keyword(s):  
Cell Wall ◽  
Lignin Content ◽  
Loss Of Function ◽  
Folylpolyglutamate Synthetase ◽  
Cell Wall Digestibility

scholarly journals Seasonal Differences in Structural and Genetic Control of Digestibility in Perennial Ryegrass

2022 ◽  
Vol 12 ◽  
Author(s):  
Vincent Colas ◽  
Philippe Barre ◽  
Frederik van Parijs ◽  
Lukas Wolters ◽  
Yannick Quitté ◽  
...  
Keyword(s):  
Cell Wall ◽  
Genetic Control ◽  
Perennial Ryegrass ◽  
Lignin Content ◽  
Forage Quality ◽  
Phenotypic Variance ◽  
Quality Traits ◽  
Forage Digestibility ◽  
Cell Wall Biogenesis ◽  
Candidate Gene Association

Perennial ryegrass is an important forage crop in dairy farming, either for grazing or haying purposes. To further optimise the forage use, this study focused on understanding forage digestibility in the two most important cuts of perennial ryegrass, the spring cut at heading and the autumn cut. In a highly diverse collection of 592 Lolium perenne genotypes, the organic matter digestibility (OMD) and underlying traits such as cell wall digestibility (NDFD) and cell wall components (cellulose, hemicellulose, and lignin) were investigated for 2 years. A high genotype × season interaction was found for OMD and NDFD, indicating differences in genetic control of these forage quality traits in spring versus autumn. OMD could be explained by both the quantity of cell wall content (NDF) and the quality of the cell wall content (NDFD). The variability in NDFD in spring was mainly explained by differences in hemicellulose. A 1% increase of the hemicellulose content in the cell wall (HC.NDF) resulted in an increase of 0.81% of NDFD. In autumn, it was mainly explained by the lignin content in the cell wall (ADL.NDF). A 0.1% decrease of ADL.NDF resulted in an increase of 0.41% of NDFD. The seasonal traits were highly heritable and showed a higher variation in autumn versus spring, indicating the potential to select for forage quality in the autumn cut. In a candidate gene association mapping approach, in which 503 genes involved in cell wall biogenesis, plant architecture, and phytohormone biosynthesis and signalling, identified significant quantitative trait loci (QTLs) which could explain from 29 to 52% of the phenotypic variance in the forage quality traits OMD and NDFD, with small effects of each marker taken individually (ranging from 1 to 7%). No identical QTLs were identified between seasons, but within a season, some QTLs were in common between digestibility traits and cell wall composition traits confirming the importance of hemicellulose concentration for spring digestibility and lignin concentration in NDF for autumn digestibility.

Variation in Cell Wall Digestibility of Perennial Ryegrass at Heading Stage

2014 ◽  
pp. 119-124
Author(s):  
Frederik R. D. van Parijs ◽  
C. Van Waes ◽  
E. Van Bockstaele ◽  
G. Haesaert ◽  
I. Roldán-Ruiz ◽  
...  
Keyword(s):  
Cell Wall ◽  
Perennial Ryegrass ◽  
Cell Wall Digestibility ◽  
Heading Stage

LIGNIFICATION AND IN VITRO CELL WALL DIGESTIBILITY OF PLANT PARTS

1969 ◽  
Vol 49 (4) ◽  
pp. 499-504 ◽  
Author(s):  
D. N. Mowat ◽  
M. L. Kwain ◽  
J. E. Winch
Keyword(s):  
Cell Wall ◽  
Chemical Composition ◽  
Cell Walls ◽  
Lignin Content ◽  
Correlation Coefficients ◽  
Cell Wall Digestibility ◽  
Plant Parts ◽  
Two Samples ◽  
Dactylis Glomerata L

The in vitro cell wall digestibility and chemical composition were determined with a total of 56 forage samples. Two samples each of Dactylis glomerata L., Bromus inermis Leyss., Medicago sativa L., and Lotus corniculatus L. were collected at three maturities. Two samples of Symphtum officinale L. were collected at two maturities. All samples were later separated into leaf and stem portions. Wide variation existed in chemical composition and digestibility. The range in cell wall constituents was 23.9 to 79.8%, in acid detergent fiber 16.9 to 52.3%, and in lignin 3.7 to 19.1%. The in vitro cell wall digestibility varied from 16.6 to 77.5%. Correlation coefficients between lignin content and cell wall digestibility were higher when lignin was expressed as a percentage of dry matter rather than as a percentage of cell walls. In grasses, the relationship between lignin in cell walls and cell wall digestibility was linear. However, cell wall digestibility of legumes and Russian comfrey was not as low as expected from the content of lignin.

Influence of growth temperature on anatomy and in vitro digestibility of maize tissues

1990 ◽  
Vol 114 (2) ◽  
pp. 207-212 ◽  
Author(s):  
J. W. Cone ◽  
F. M. Engels
Keyword(s):  
Cell Wall ◽  
Temperature Regime ◽  
Lignin Content ◽  
Chemical Properties ◽  
Wall Layer ◽  
Cell Diameter ◽  
In Vitro Digestibility ◽  
Cell Wall Digestibility ◽  
Temperature Regimes

SUMMARYTissues of maize grown under different temperature regimes showed remarkable differences in anatomical and chemical properties and in vitro digestibility. A high temperature regime (12 h at 30 °C and 12 h at 24 °C) resulted in decreased cell wall thickness, cell diameter and cell wall yield, doubled lignin content and decreased in vitro digestibility, compared with plants grown under a low temperature regime (12 h at 18 °C and 12 h at 12 °C). A reduction in intensity of staining for lignin was observed in plants grown at 30/24 °C. Cell wall digestibility was thought to be limited by an indigestible cell wall layer between the secondary walls of adjacent cells. The use of lignin staining was of limited value for predicting cell wall digestibility. High temperatures probably affect physiological processes leading to lignin formation and deposition.

The optimal lignin quantification method to breed for an improved cell wall digestibility in perennial ryegrass

2017 ◽  
Vol 73 (1) ◽  
pp. 101-111 ◽  
Author(s):  
F. van Parijs ◽  
C. Van Waes ◽  
B. Vandecasteele ◽  
G. Haesaert ◽  
I. Roldán-Ruiz ◽  
...  
Keyword(s):  
Cell Wall ◽  
Perennial Ryegrass ◽  
Cell Wall Digestibility ◽  
Quantification Method

Silicification of wood-cell walls

1994 ◽  
Vol 52 ◽  
pp. 428-429
Author(s):  
S. E. Keckler ◽  
D. M. Dabbs ◽  
N. Yao ◽  
I. A. Aksay
Keyword(s):  
Electron Microscopy ◽  
Cell Wall ◽  
Cell Walls ◽  
Lignin Content ◽  
Resin Composite ◽  
Middle Lamella ◽  
Cellulose Fibers ◽  
Complex Structures ◽  
Rich Region ◽  
Inorganic Precursors

Cellular organic structures such as wood can be used as scaffolds for the synthesis of complex structures of organic/ceramic nanocomposites. The wood cell is a fiber-reinforced resin composite of cellulose fibers in a lignin matrix. A single cell wall, containing several layers of different fiber orientations and lignin content, is separated from its neighboring wall by the middle lamella, a lignin-rich region. In order to achieve total mineralization, deposition on and in the cell wall must be achieved. Geological fossilization of wood occurs as permineralization (filling the void spaces with mineral) and petrifaction (mineralizing the cell wall as the organic component decays) through infiltration of wood with inorganics after growth. Conversely, living plants can incorporate inorganics into their cells and in some cases into the cell walls during growth. In a recent study, we mimicked geological fossilization by infiltrating inorganic precursors into wood cells in order to enhance the properties of wood. In the current work, we use electron microscopy to examine the structure of silica formed in the cell walls after infiltration of tetraethoxysilane (TEOS).

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