Brachypodium distachyon as a Model Species to Understand Grass Cell Walls

2015 ◽  
pp. 197-217
Author(s):  
Joshua H. Coomey ◽  
Samuel P. Hazen
Keyword(s):  
Cell Walls ◽  
Brachypodium Distachyon ◽  
Model Species

Grass secondary cell walls, Brachypodium distachyon as a model for discovery

2020 ◽  
Vol 227 (6) ◽  
pp. 1649-1667 ◽  
Author(s):  
Joshua H. Coomey ◽  
Richard Sibout ◽  
Samuel P. Hazen
Keyword(s):  
Cell Walls ◽  
Brachypodium Distachyon ◽  
Secondary Cell Walls

scholarly journals The source of inorganic nitrogen has distinct effects on cell wall composition in Brachypodium distachyon

2019 ◽  
Vol 70 (21) ◽  
pp. 6461-6473 ◽  
Author(s):  
Sylwia Głazowska ◽  
Laetitia Baldwin ◽  
Jozef Mravec ◽  
Christian Bukh ◽  
Jonathan U Fangel ◽  
...  
Keyword(s):  
Cell Walls ◽  
Inorganic Nitrogen ◽  
Brachypodium Distachyon ◽  
Crop Model ◽  
Cell Wall Composition ◽  
Type Ii ◽  
Specific Manner ◽  
Type Ii Cell ◽  
Compositional Changes ◽  
Different Sources

Different sources of inorganic nitrogen exert compositional changes on type II cell walls of the grass and crop model Brachypodium distachyon in an organ- and development-specific manner.

scholarly journals Programmed Cell Death in Developing Brachypodium distachyon Grain

2021 ◽  
Vol 22 (16) ◽  
pp. 9086
Author(s):  
Safia Saada ◽  
Charles Ugochukwu Solomon ◽  
Sinéad Drea
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Grain Shape ◽  
Brachypodium Distachyon ◽  
Endosperm Development ◽  
Developmental Sequence ◽  
Model Species ◽  
Processing Enzymes ◽  
Molecular Aspects ◽  
Developing Grains

The normal developmental sequence in a grass grain entails the death of several maternal and filial tissues in a genetically regulated process termed programmed cell death (PCD). The progression and molecular aspects of PCD in developing grains have been reported for domesticated species such as barley, rice, maize and wheat. Here, we report a detailed investigation of PCD in the developing grain of the wild model species Brachypodium distachyon. We detected PCD in developing Brachypodium grains using molecular and histological approaches. We also identified in Brachypodium the orthologs of protease genes known to contribute to grain PCD and surveyed their expression. We found that, similar to cereals, PCD in the Brachypodium nucellus occurs in a centrifugal pattern following anthesis. However, compared to cereals, the rate of post-mortem clearance in the Brachypodium nucellus is slower. However, compared to wheat and barley, mesocarp PCD in Brachypodium proceeds more rapidly in lateral cells. Remarkably, Brachypodium mesocarp PCD is not coordinated with endosperm development. Phylogenetic analysis suggests that barley and wheat possess more vacuolar processing enzymes that drive nucellar PCD compared to Brachypodium and rice. Our expression analysis highlighted putative grain-specific PCD proteases in Brachypodium. Combined with existing knowledge on grain PCD, our study suggests that the rate of nucellar PCD moderates grain size and that the pattern of mesocarp PCD influences grain shape.

scholarly journals Long noncoding RNAs in the model species Brachypodium distachyon

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Concetta De Quattro ◽  
Mario Enrico Pè ◽  
Edoardo Bertolini
Keyword(s):  
Brachypodium Distachyon ◽  
Noncoding Rnas ◽  
Long Noncoding Rnas ◽  
Model Species

scholarly journals Perturbation of Brachypodium distachyon CELLULOSE SYNTHASE A4 or 7 results in abnormal cell walls

2013 ◽  
Vol 13 (1) ◽  
pp. 131 ◽  
Author(s):  
Pubudu P Handakumbura ◽  
Dominick A Matos ◽  
Karen S Osmont ◽  
Michael J Harrington ◽  
Kyuyoung Heo ◽  
...  
Keyword(s):  
Cell Walls ◽  
Brachypodium Distachyon ◽  
Cellulose Synthase ◽  
Abnormal Cell

scholarly journals Publisher Correction: Long noncoding RNAs in the model species Brachypodium distachyon

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Concetta De Quattro ◽  
Mario Enrico Pè ◽  
Edoardo Bertolini
Keyword(s):  
Brachypodium Distachyon ◽  
Noncoding Rnas ◽  
Long Noncoding Rnas ◽  
Model Species

scholarly journals Programmed Cell Death in the Developing Brachypodium distachyon Grain

2019 ◽  
Author(s):  
Safia Saada ◽  
Charles Ugochukwu Solomon ◽  
Sinéad Drea
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Grain Shape ◽  
Brachypodium Distachyon ◽  
Endosperm Development ◽  
List Type ◽  
Developmental Sequence ◽  
Model Species ◽  
Processing Enzymes ◽  
Molecular Aspects

SummaryThe normal developmental sequence in a grass grain entails the death of several maternal and filial tissues in a genetically regulated process termed programmed cell death (PCD). The progression and molecular aspects of PCD in developing grain have been reported for domesticated species like barley, rice, maize and wheat. Here, we report a detailed investigation of PCD in the developing grain of a wild model species, Brachypodium distachyon.We detected PCD in developing Brachypodium grains using molecular and histological approaches. We also identified and surveyed the expression of Brachypodium orthologs of protease genes known to contribute to grain PCD.We found that Brachypodium nucellus degenerates by PCD in a centrifugal pattern following anthesis, although at a slower rate compared to cultivated cereals. Mesocarp PCD was not coordinated with endosperm development. Brachypodium lacks an expansion of vacuolar processing enzymes known for their roles in nucellar PCD.Combined with existing knowledge on grain PCD, our study suggests the importance of rapid nucellar PCD for grain size and that the pattern of mesocarp PCD affects grain shape.

Characterization of the primary cell walls of seedlings of Brachypodium distachyon – A potential model plant for temperate grasses

2010 ◽  
Vol 71 (1) ◽  
pp. 62-69 ◽  
Author(s):  
Ulla Christensen ◽  
Ana Alonso-Simon ◽  
Henrik V. Scheller ◽  
William G.T. Willats ◽  
Jesper Harholt
Keyword(s):  
Cell Walls ◽  
Potential Model ◽  
Brachypodium Distachyon ◽  
Primary Cell ◽  
Model Plant
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