scholarly journals Transcriptomics at Maize Embryo/Endosperm Interfaces Identifies a Transcriptionally Distinct Endosperm Subdomain Adjacent to the Embryo Scutellum

2020 ◽  
Vol 32 (4) ◽  
pp. 833-852 ◽  
Author(s):  
Nicolas M. Doll ◽  
Jeremy Just ◽  
Véronique Brunaud ◽  
José Caïus ◽  
Aurélie Grimault ◽  
...  
Keyword(s):  
Maize Embryo

scholarly journals Культура ізольованих зернівок як біотехнологічна система дорощування зиготичних зародків кукурудзи in vitro

2010 ◽  
Vol 1 (2) ◽  
pp. 49-57
Author(s):  
Е. V. Lyapustina
Keyword(s):  
Nutrient Medium ◽  
Internal State ◽  
Starch Accumulation ◽  
Globular Stage ◽  
Maize Embryo ◽  
Full Maturity

The investigation established the possibility of production of maize embryo in culture of isolated caryopsis on artificial nutrient medium in vitro conditions from a zygote / proembryo and globular stage up to the full maturity. It was determined that the cultivation of caryopsis on artificial nutrient medium provides the accumulation of starch in endosperm. The internal state of cultured caryopsis can be considered as a marker of embryo upgrowing and starch accumulation in endosperm, irrespective of the genotype. The genotype, the age of cultured caryopsis and concentration of sucrose influence on the development of endosperm, accumulation of starch in endosperm and embryo upgrowing from the zygote / proembryo and globular stage.

scholarly journals Sequence of Reactivation of Ribonucleic Acid Synthesis during Early Germination of the Maize Embryo

1976 ◽  
Vol 57 (4) ◽  
pp. 632-639 ◽  
Author(s):  
Claude Van De Walle ◽  
Georges Bernier ◽  
Roger Deltour ◽  
Raymond Bronchart
Keyword(s):  
Ribonucleic Acid ◽  
Acid Synthesis ◽  
Early Germination ◽  
Maize Embryo

Developmental profiles of the maize embryo-lethal mutants dek22 and dek23

1986 ◽  
Vol 77 (2) ◽  
pp. 83-92 ◽  
Author(s):  
Janice K. Clark ◽  
William F. Sheridan
Keyword(s):  
Developmental Profiles ◽  
Maize Embryo

scholarly journals Accumulation of cell wall hydroxyproline-rich glycoprotein mRNA is an early event in maize embryo cell differentiation.

1992 ◽  
Vol 89 (6) ◽  
pp. 2414-2418 ◽  
Author(s):  
L. Ruiz-Avila ◽  
S. R. Burgess ◽  
V. Stiefel ◽  
M. D. Ludevid ◽  
P. Puigdomenech
Keyword(s):  
Cell Wall ◽  
Cell Differentiation ◽  
Embryo Cell ◽  
Early Event ◽  
Maize Embryo

scholarly journals A Unique Adenosine Diphosphoglucose Pyrophosphorylase Associated with Maize Embryo Tissue

1971 ◽  
Vol 47 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Jack Preiss ◽  
Claudia Lammel ◽  
Annemiek Sabraw
Keyword(s):  
Embryo Tissue ◽  
Maize Embryo

A novel technique for the partial isolation of maize embryo sacs and subsequent regeneration of plants

1999 ◽  
Vol 35 (4) ◽  
pp. 320-325 ◽  
Author(s):  
J. D. Laurie ◽  
G. Zhang ◽  
L. E. McGann ◽  
W. J. Gordon-Kamm ◽  
D. D. Cass
Keyword(s):  
Novel Technique ◽  
Maize Embryo ◽  
Partial Isolation ◽  
Subsequent Regeneration

Preparation of an antibody against a maize DNA polymerase holoenzyme: identification of the polymerase catalytic subunit

1994 ◽  
Vol 72 (6) ◽  
pp. 818-822 ◽  
Author(s):  
P. Coello-Coutiño ◽  
E. García-Ramírez ◽  
J. M. Vázquez-Ramos
Keyword(s):  
Molecular Weight ◽  
Catalytic Activity ◽  
Molecular Mass ◽  
Key Words ◽  
Dna Polymerase ◽  
Dna Polymerases ◽  
Deae Cellulose ◽  
Key Words Dna ◽  
Embryo Axes ◽  
Maize Embryo

Three different DNA polymerase activities can be separated from germinating maize axes through DEAE – cellulose chromatography. Of these, DNA polymerase 2 appears to be a replicative-type enzyme composed of several subunits. An antibody has been developed against the DNA polymerase 2 multisubunit complex, which mainly recognizes a polypeptide of molecular weight around 90 kDa. Polypeptides of molecular mass of 83, 70, 60, 55, 45, and 24 kDa are also recognized. Activity gels showed that the 90-kDa polypeptide possesses catalytic activity. DNA polymerases 1 and 3 are not recognized by the antibody and their activities are not reduced. However, DNA polymerase 2 activity is reduced by 70%. The nature of the different DNA polymerase accompanying subunits is discussed. Key words: DNA polymerases, maize embryo axes.

Mutational analysis of morphogenesis of the maize embryo

1993 ◽  
Vol 3 (2) ◽  
pp. 347-358 ◽  
Author(s):  
William F. Sheridan ◽  
Janice K. Clark
Keyword(s):  
Mutational Analysis ◽  
Maize Embryo

scholarly journals Gene Expression Variation Explains Maize Seed Germination Heterosis

2021 ◽  
Author(s):  
Jiong Wan ◽  
Qiyue Wang ◽  
Jiawen Zhao ◽  
Kuntai Dang ◽  
Zhanyong Guo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Seed Germination ◽  
Metabolic Pathways ◽  
Expression Patterns ◽  
Parental Line ◽  
Gene Expression Variation ◽  
Maize Seed ◽  
Expression Variation ◽  
Reciprocal Crossing ◽  
Maize Embryo

Abstract BackgroundHeterosis has been extensively utilization in plant breeding, however, the underlying molecular mechanism remain largely elusive. Maize (Zea mays), which exhibits strong heterosis, is an ideal material for studying heterosis.ResultsIn this study, there is a faster imbibition and development in reciprocal crossing Zhengdan958 hybrids than in their parent lines during seed germination. To investigate the mechanism of heterosis of maize germination, comparative transcriptomic analyses was conducted between reciprocal crossing hybrids and their parental lines. The gene expression patterns showed that 1324 (47.27%) and 1592 (66.44%) of the different expression genes between hybrids and either parental line display parental dominance up or higher levels in Zhengdan958 and Zhengdan958 reciprocal-cross, respectively. Notably, these genes were mainly enriched in metabolic pathways, including carbon metabolism, glycolysis/gluconeogenesis, protein processing in endoplasmic reticulum, etc.ConclusionOur results provide evidence for the higher expression level genes in hybrid involved in metabolic pathways acting as main contributors to maize seed germinating heterosis. These findings provide new insights into the gene expression variation of maize embryo and improve the understanding of maize seed germination heterosis.

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