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MetabolomicsDynamic metabolic and transcriptomic profiling reveals the biosynthetic characteristics of hydroxycinnamic acid amides (HCAAs) in sunflower pollen

Sunflower pollen is a natural nutritious food with a long history and multiple functions, however, the main chemical components apart from flavonoids and their biosynthesis processes have not been thoroughly investigated. In this study, seven hydroxycinnamic acid amides (HCAAs) (1-7) abundant in ...

2021-10-15 | MTBLS3075 | MetaboLights
TranscriptomicsTranscription profiling of Arabidopsis cell-sorted, hydrated pollen grains vs those of flowers, leaves, seedlings and siliques
Upon germination, pollen forms a tube that elongates dramatically through female tissues in order to reach and fertilize ovules. While essential for the life cycle of higher plants, the genetic basis underlying most of the process is not well understood. We used Affymetrix Arabidopsis ATH1 Genome Ar...
ORGANISM(S): Arabidopsis thaliana 
2005-06-01 | E-MEXP-285 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of Arabidopsis pollen and semi in vivo- and in vitro-grown pollen tubes.
Pollen tubes extend through pistil tissues and are guided to ovules where they release sperm for fertilization. Although pollen tubes can germinate and elongate in a synthetic medium, their trajectory is random and their growth rates are slower compared to growth in pistil tissues. Furthermore, inte...
ORGANISM(S): Arabidopsis thaliana 
2009-08-15 | E-GEOD-17343 | biostudies-arrayexpress
ProteomicsComprehensive cell-specific protein analysis in early and late pollen development from diploid microsporocytes to pollen tube growth
Pollen development in angiosperms is one of the most important processes controlling plant reproduction and thus productivity. At the same time, pollen development is highly sensitive to environmental fluctuations, including temperature, drought, and nutrition. Therefore, pollen biology is a major f...
ORGANISM(S): Nicotiana tabacum (Common tobacco) 
2023-10-09 | PXD045970 | Pride
Microspores Pollen tubes Development Tobacco Pollen 
TranscriptomicsGene expression in mature pollen and sperm cells versus young seedling as a vegetative sporophyte reference control
Sperm cells represent the male partner that fuses with the egg cell during fertilization in all multi-cellular eukaryotic organisms, and, in flowering plants, is a founder of both embryo and nutritive endosperm. We examined the transcriptome of Oryza sativa ssp. japonica using the Affymetrix 57K ri...
ORGANISM(S): Oryza sativa 
2012-04-29 | E-GEOD-17002 | biostudies-arrayexpress
TranscriptomicsSmall noncoding RNAs in tomato pollen
We used tomato pollen in order to identify pollen stage-specific small non-coding RNAs (sncRNAs) and their target mRNAs. We further deployed elevated temperatures to discern stress responsive sncRNAs. For this purpose high throughput sncRNA-sequencing was performed for three-replicated sncRNAs libra...
ORGANISM(S): Solanum lycopersicum 
2015-08-20 | E-MTAB-3830 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of mature pollen grains from wild type and AtMIKC* MADS-box gene knock-out Arabidopsis plants
Effects of loss-of-function of AtMIKC* MADS-box genes on the mature Arabidopsis pollen transcriptome.
ORGANISM(S): Arabidopsis thaliana 
2007-12-04 | E-MEXP-1138 | biostudies-arrayexpress
TranscriptomicsNutrigenomics in honey bees: the impact of pollen nutrients on bee health
We studied the molecular mechanisms underlying the impact of pollen nutrients on honey bee (Apis mellifera) health and how those nutrients improve resistance to parasites. Using digital gene expression, we determined the changes in gene expression induced by pollen intake in worker bees parasitized ...
ORGANISM(S): Apis mellifera 
2011-11-06 | E-GEOD-25161 | biostudies-arrayexpress
TranscriptomicsGene expression profiling of maize anther and pollen ontogeny
Global gene expression profiles of seven stages representing 29 days of anther development are analyzed using a 44K oligonucleotide array querying ~80% of maize protein-coding genes. Each anther stage expresses ~10,000 constitutive and ~10,000 or more transcripts restricted to one or a few stages. ...
ORGANISM(S): Zea mays 
2010-05-15 | E-GEOD-12579 | biostudies-arrayexpress
ProteomicsThe coupling of transcriptome and proteome adaptation during development and heat stress response of tomato pollen
Pollen development is central for plant reproduction and is assisted by changes of the transcriptome and the proteome. At the same time, pollen is largely heat sensitive, particularly at early developmental stages. To define the changes during development and the response of different stages to elev...
ORGANISM(S): Solanum lycopersicum 
2015-05-15 | PXD008762 | Pride
Pollen development Proteomics Heat stress Transcriptomics 
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