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Programmed Cell Death In Wheat Starchy Endosperm During Kernel Development

Yifang Chen, Jun Zhang, P. Xie, W. Zhou, Jian-min Chen, Cunxu Wei
Published 2012 · Biology

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Wheat starchy endosperm is fated to die prior to seed maturation. To reveal the death process of wheat starchy endosperm, morphological variations of the nucleus, the breakage of nuclear DNA, the activities of enzymes related to starch synthesis and antioxidization, and grain weight were investigated. Results showed that wheat starchy endosperm death consisted of two main steps: Nucleus degeneration and subsequent denucleated cell development. Nucleus degeneration showed deformation, chromatin condensation, nuclear envelope disruption, and nuclear residue formation from the degenerative nucleus, which were typical features of programmed cell death (PCD), along with starchy endosperm development. Evans blue staining indicated that starchy endosperm cell death occurred asynchronously among the starchy endosperm cells with initiation points randomly distributed in the endosperm tissue. Enzymes related to starch synthesis and anti-oxidization showed high activities and grain weight increased during nucleus degeneration and denucleated cell development stages. These results suggested that the death of wheat starchy endosperm is a special form of PCD.   Key words: Wheat, starchy endosperm cell, programmed cell death, endosperm development, nucleus degeneration, denucleated cell development.
This paper references
Cell fate specification in the cereal endosperm.
P. Becraft (2001)
Programmed cell death: a way of life for plants.
J. Greenberg (1996)
Update on Reactive Oxygen Species in Plant Cell Death Reactive Oxygen Species in Plant Cell Death 1
F. Breusegem (2006)
Apoptosis: The Molecular Basis of Cell Death
L. D. Tomei (1991)
Diurnal Changes in Activities of Related Enzymes to Starch Synthesis in Grains of Winter Wheat
Jiang Dong (2004)
The Developmental Biology of Cereal Endosperm
R. Brown (2007)
Programmed cell death : a way of life for plants . P . Natl . Acad . Sci
JT Greenberg (1996)
Specific patterns of cortical and endoplasmic microtubules associated with cell growth and tissue differentiation in roots of maize (Zea mays L.)
F. Baluška (1992)
J. Greenberg (1997)
Chromatin cleavage in apoptosis: Association with condensed chromatin morphology and dependence on macromolecular synthesis
A. Wyllie (1984)
The sex determination process in maize.
S. Dellaporta (1994)
Carbohydrate Metabolism in the Developing Endosperm of Rice Grains
Y. Nakamura (1989)
Programmed cell death in plant - pathogen interactions . Annu . Rev . Plant Physiol . Plant Mol . Biol
JT Greenberg (1997)
The expression of different superoxide dismutase forms is cell-type dependent in olive (Olea europaea L.) leaves.
F. Corpas (2006)
In Situ Detection of nDNA Fragmentation during the Differentiation of Tracheary Elements in Higher Plants
R. Mittler (1995)
Programmed cell death during endosperm development
T. E. Young (2004)
ENDOSPERM DEVELOPMENT: Cellularization and Cell Fate Specification.
O. Olsen (2001)
Reactive oxygen species in plant cell death . Plant Physiol
RC Brown (2006)
Apoptosis II: The Molecular Basis of Apoptosis in Disease
L. D. Tomei (1994)
Analysis of programmed cell death in wheat endosperm reveals differences in endosperm development between cereals
T. E. Young (2004)
Tracheary element differentiation uses a novel mechanism coordinating programmed cell death and secondary cell wall synthesis
Groover (1999)
Regulation of aleurone development in cereal grains.
P. Becraft (2011)
Ethylene-Mediated Programmed Cell Death during Maize Endosperm Development of Wild-Type and shrunken2 Genotypes
T. E. Young (1997)
Ultraviolet-B- and Ozone-Induced Biochemical Changes in Antioxidant Enzymes of Arabidopsis thaliana
M. Rao (1996)
Programmed Cell Death in Plants.
R. Pennell (1997)
Nuclear Endosperm Development in Cereals and Arabidopsis thaliana
O. Olsen (2004)
Megaspore Abortion: A Consequence of Selective Apoptosis?
P. R. Bell (1996)

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