ArticleJournal of experimental botany2015
Metabolic and transcriptional transitions in barley glumes reveal a role as transitory resource buffers during endosperm filling.
Article in Journal of experimental botany, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 38 citations in OpenAlex.
- Contributions of glume and awn to photosynthesis,Heliyon · 2023Article
- Frost tolerance in apricot (Prunus armeniaca L.) receptacle and pistil organs: how is the relationship among amino acids, minerals, and cell death points?International journal of biometeorology · 2021Article
- The Structure of the Barley Husk Influences Its Resistance to Mechanical Stress.Frontiers in plant science · 2020Article
- Whole Genome Scan Reveals Molecular Signatures of Divergence and Selection Related to Important Traits in Durum Wheat Germplasm.Frontiers in genetics · 2020Article
- Review
- Transcriptional Dynamics of Grain Development in Barley (International journal of molecular sciences · 2019Article
- Changes in nitrogen availability lead to a reprogramming of pyruvate metabolism.BMC plant biology · 2018Article
- Article
- Grain yield and quality responses of wheat expressing a barley sucrose transporter to combined climate change factors.Journal of experimental botany · 2017Article
- Global transcriptome analysis and identification of genes involved in nutrients accumulation during seed development of rice tartary buckwheat (Fagopyrum Tararicum).Scientific reports · 2017Article
- Down-regulation of the sucrose transporters HvSUT1 and HvSUT2 affects sucrose homeostasis along its delivery path in barley grains.Journal of experimental botany · 2017Article
- Transcriptomic response of durum wheat to nitrogen starvation.Scientific reports · 2017Article
- Barley plants over-expressing the NAC transcription factor gene HvNAC005 show stunting and delay in development combined with early senescence.Journal of experimental botany · 2016Article
- Increasing abscisic acid levels by immunomodulation in barley grains induces precocious maturation without changing grain composition.Journal of experimental botany · 2016Article
- Hormone-mediated growth dynamics of the barley pericarp as revealed by magnetic resonance imaging and transcript profiling.Journal of experimental botany · 2015Article
- Transcriptome profiling of wheat glumes in wild emmer, hulled landraces and modern cultivars.BMC genomics · 2015Article
- Staying Alive or Going to Die During Terminal Senescence-An Enigma Surrounding Yield Stability.Frontiers in plant science · 2015Review
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During grain filling in barley (Hordeum vulgare L. cv. Barke) reserves are remobilized from vegetative organs. Glumes represent the vegetative tissues closest to grains, senesce late, and are involved in the conversion of assimilates. To analyse glume development and metabolism related to grain filling, parallel transcript and metabolite profiling in glumes and endosperm were performed, showing that glume metabolism and development adjusts to changing grain demands, reflected by specific signatures of metabolite and transcript abundances. Before high endosperm sink strength is established by storage product accumulation, glumes form early, intermediary sink organs, shifting then to remobilizing and exporting source organs. Metabolic and transcriptional transitions occur at two phases: first, at the onset of endosperm filling, as a consequence of endosperm sink activity and assimilate depletion in endosperm and vascular tissues; second, at late grain filling, by developmental ageing and senescence. Regulation of and transition between phases are probably governed by specific NAC and WRKY transcription factors, and both abscisic and jasmonic acid, and are accompanied by changed expression of specific nitrogen transporters. Expression and metabolite profiling suggest glume-specific mechanisms of assimilate conversion and translocation. In summary, grain filling and endosperm sink strength coordinate phase changes in glumes via metabolic, hormonal, and transcriptional control. This study provides a comprehensive view of barley glume development and metabolism, and identifies candidate genes and associated pathways, potentially important for breeding improved grain traits.
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