A5014674234- Plant Molecular Biology Research
- Plant Reproductive Biology
- Genetic Syndromes and Imprinting
- Photosynthetic Processes and Mechanisms
- Plant nutrient uptake and metabolism
- Chromosomal and Genetic Variations
- Plant tissue culture and regeneration
- Epigenetics and DNA Methylation
- Plant Taxonomy and Phylogenetics
- Seed Germination and Physiology
- Biochemical and Structural Characterization
- Genetic Mapping and Diversity in Plants and Animals
- Plant Parasitism and Resistance
- Agricultural and Food Sciences
- Plant-Microbe Interactions and Immunity
- Plant Diversity and Evolution
- Mitochondrial Function and Pathology
- Antimicrobial Peptides and Activities
- Plant and animal studies
- Plant biochemistry and biosynthesis
- Growth and nutrition in plants
- Plant Gene Expression Analysis
- Soybean genetics and cultivation
- Coffee research and impacts
- Polysaccharides and Plant Cell Walls
Oxford University Press (United Kingdom)
2017-2021
University of Oxford
2003-2014
University of Warwick
2013
ING Direct
2012
Science Oxford
2008
University of Florida
2007
Iowa State University
2007
Biogemma (France)
2007
Universität Hamburg
2005
University of Florence
2000
Growth of the maize (Zea mays) endosperm is tightly regulated by maternal zygotic and sporophytic genes, some which are subject to a parent-of-origin effect. We report here novel gene, maternally expressed gene1 (meg1), shows expression pattern during early stages development but biallelic at later stages. Interestingly, stable reporter fusion containing meg1 promoter exhibits similar expression. exclusively in basal transfer region endosperm. Further, we show that putatively processed MEG1...
Plant embryogenesis initiates with the establishment of an apical-basal axis; however, molecular mechanisms accompanying this early event remain unclear. Here, we show that a small cysteine-rich peptide family is required for formation zygotic basal cell lineage and proembryo patterning in Arabidopsis. EMBRYO SURROUNDING FACTOR 1 (ESF1) peptides accumulate before fertilization central gametes thereafter embryo-surrounding endosperm cells. Biochemical structural analyses revealed cleavage...
Abstract The pentatricopeptide repeat (PPR) family represents one of the largest gene families in plants, with >440 members annotated Arabidopsis thaliana. PPR proteins are thought to have a major role regulation posttranscriptional processes organelles. Recent studies shown that play an essential, nonredundant during embryogenesis. Here, we demonstrate mutations empty pericarp4 (emp4), maize (Zea mays) PPR-encoding gene, confer seed-lethal phenotype. Mutant endosperms severely...
Abstract Viviparous1 (Vp1) encodes a B3 domain-containing transcription factor that is key regulator of seed maturation in maize (Zea mays). However, the mechanisms Vp1 regulation are not well understood. To examine physiological factors may regulate expression, transcript levels were monitored maturing embryos placed culture under different conditions. Expression decreased after hormone-free medium, but was induced by salinity or osmotic stress. Application exogenous abscisic acid (ABA)...
Plant genomes contain several hundred defensin-like (DEFL) genes that encode short cysteine-rich proteins resembling defensins, which are well known antimicrobial polypeptides. Little is about the expression patterns or functions of many DEFLs because most were discovered recently and hence not represented on standard microarrays. We designed a custom Affymetrix chip consisting probe sets for 317 684 from Arabidopsis thaliana Medicago truncatula, respectively cataloging DEFL in variety plant...
Cereal endosperm tissues account for most of the world's calorific intake, yet regulation monocot seed development remains poorly understood. The maize originates with a series free-nuclear divisions, followed by cellularisation and subsequent formation range functional cellular domains. We describe isolation characterisation mutation that induces aberrant globular embryo morphology, globby1-1 (glo1-1). Our data indicate glo1-1 plays role in nuclear division cytokinesis developing seed....
The analysis of cell type-specific gene expression is an essential step in understanding certain biological processes during plant development, such as differentiation. Although methods for isolating specific types have been established, the application cDNA subtraction to small populations isolated direct identification or differentially expressed transcripts has not yet reported. As a first genes between maize egg cells and central cells, we manually these cell, applied...
In angiosperms, double fertilization of an egg cell and a central with two sperm cells results in the formation seed containing diploid embryo triploid endosperm. The extent to which sac controls postfertilization events is unknown. novel gametophytic maternal-effect maize mutation, baseless1 (bsl1) affects development within sac, frequently by altering position polar nuclei. Despite this irregularity, as efficient wild type. spatial expression basal endosperm-specific transcripts altered...
The results of wide- or interploidy crosses in angiosperms are unpredictable and often lead to seed abortion. consequences reciprocal have been explored maize detail, focusing on alterations tissue domains the endosperm, changes endosperm-specific gene expression.Following between diploid tetraploid lines, development endosperm was studied using GUS reporter expression resulting kernels investigated semi-quantitative RT-PCR endosperms isolated at different stages development.Reciprocal...