Abstract:
BACKGROUND:Transcription factor HaDREB2 was identified in sunflower (Helianthus annuus L.) as a drought-responsive element-binding factor 2 (DREB2) with unique properties. HaDREB2 and the sunflower Heat Shock Factor A9 (HaHSFA9) co-activated the Hahsp17.6G1 promoter in sunflower embryos. Both factors could be involved in transcriptional co-activation of additional small heat stress protein (sHSP) promoters, and thus contribute to the HaHSFA9-mediated enhancement of longevity and basal thermotolerance of seeds. RESULTS:We found that overexpression of HaDREB2 in seeds did not enhance longevity. This was deduced from assays of basal thermotolerance and controlled seed-deterioration, which were performed with transgenic tobacco. Furthermore, the constitutive overexpression of HaDREB2 did not increase thermotolerance in seedlings or result in the accumulation of HSPs at normal growth temperatures. In contrast, when HaDREB2 and HaHSFA9 were conjointly overexpressed in seeds, we observed positive effects on seed longevity, beyond those observed with overexpression of HaHSFA9 alone. Such additional effects are accompanied by a subtle enhancement of the accumulation of subsets of sHSPs belonging to the CI and CII cytosolic classes. CONCLUSION:Our results reveal the functional interdependency of HaDREB2 and HaHSFA9 in seeds. HaDREB2 differs from other previously characterized DREB2 factors in plants in terms of its unique functional interaction with the seed-specific HaHSFA9 factor. No functional interaction between HaDREB2 and HaHSFA9 was observed when both factors were conjointly overexpressed in vegetative tissues. We therefore suggest that additional, seed-specific factors, or protein modifications, could be required for the functional interaction between HaDREB2 and HaHSFA9.
journal_name
BMC Plant Bioljournal_title
BMC plant biologyauthors
Almoguera C,Prieto-Dapena P,Díaz-Martín J,Espinosa JM,Carranco R,Jordano Jdoi
10.1186/1471-2229-9-75subject
Has Abstractpub_date
2009-06-19 00:00:00pages
75issn
1471-2229pii
1471-2229-9-75journal_volume
9pub_type
杂志文章abstract:BACKGROUND:Leaves are determinate organs; hence, precise control of cell proliferation and post-mitotic cell expansion is essential for their growth. A defect in cell proliferation often triggers enhanced post-mitotic cell expansion in leaves. This phenomenon is referred to as 'compensation'. Several lines of evidence ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-13-143
更新日期:2013-09-28 00:00:00
abstract:BACKGROUND:A molecular-level understanding of the loss of CURVY1 (CVY1) gene expression (which encodes a member of the receptor-like protein kinase family) was investigated to gain insights into the mechanisms controlling cell morphogenesis and development in Arabidopsis thaliana. RESULTS:Using a reverse genetic and c...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-014-0221-7
更新日期:2014-08-27 00:00:00
abstract:BACKGROUND:Guar, Cyamopsis tetragonoloba (L.) Taub, is a member of the Leguminosae (Fabaceae) family and is economically the most important of the four species in the genus. The endosperm of guar seed is a rich source of mucilage or gum, which forms a viscous gel in cold water, and is used as an emulsifier, thickener a...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-7-62
更新日期:2007-11-23 00:00:00
abstract:BACKGROUND:The normal growth of Rehmannia glutinosa, a widely used medicinal plant in China, is severely disturbed by replant disease. The formation of replant disease commonly involves interactions among plants, allelochemicals and microbes; however, these relationships remain largely unclear. As a result, no effectiv...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-017-1060-0
更新日期:2017-07-10 00:00:00
abstract:BACKGROUND:Sesame (Sesamum indicum L., 2n = 2x = 26) is an important oilseed crop with high oil content but small seed size. To reveal the genetic loci of the quantitative seed-related traits, we constructed a high-density single nucleotide polymorphism (SNP) linkage map of an F2 population by using specific length amp...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-2172-5
更新日期:2019-12-27 00:00:00
abstract:BACKGROUND:Flax (Linum usitatissimum L.) is an economically important fiber and oil crop that has been grown for thousands of years. The genome has been recently sequenced and transcriptomics are providing information on candidate genes potentially related to agronomically-important traits. In order to accelerate funct...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-13-159
更新日期:2013-10-15 00:00:00
abstract:BACKGROUND:Sugar beet is a highly salt-tolerant crop. However, its ability to withstand high salinity is reduced compared to sea beet, a wild ancestor of all beet crops. The aim of this study was to investigate transcriptional patterns associated with physiological, cytological and biochemical mechanisms involved in sa...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-1661-x
更新日期:2019-02-06 00:00:00
abstract:BACKGROUND:Cytokinin Response Factors (CRFs) are a small subset of AP2/ERF transcription factor genes shown in Arabidopsis to regulate leaf development as part of the cytokinin signal transduction pathway. This study examines the phylogenetic distribution of CRF genes in other plant species, and attempts to identify th...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-10-74
更新日期:2010-04-26 00:00:00
abstract:BACKGROUND:In plants, eIF4E translation initiation factors and their eIFiso4E isoforms are essential susceptibility factors for many RNA viruses, including potyviruses. Mutations altering these factors are a major source of resistance to the viruses. The eIF4E allelic series is associated with specific resistance spect...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-14-67
更新日期:2014-03-19 00:00:00
abstract:BACKGROUND:Herbivory imposes an important selective pressure on plants. In Arabidopsis thaliana leaf trichomes provide a key defense against insect herbivory; however, trichome production incurs a fitness cost in the absence of herbivory. Previous work on A. thaliana has shown an increase in trichome density in respons...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-14-119
更新日期:2014-05-05 00:00:00
abstract:BACKGROUND:The development of transgenic plants as a production platform for biomass-degrading enzymes is a promising tool for an economically feasible allocation of enzymes processing lignocellulose. Previous research has already identified a major limitation of in planta production such as interference with the struc...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0443-3
更新日期:2015-02-13 00:00:00
abstract:BACKGROUND:The ornamental crop Calluna vulgaris is of increasing importance to the horticultural industry in the northern hemisphere due to a flower organ mutation: the flowers of the 'bud-flowering' phenotype remain closed i.e. as buds throughout the total flowering period and thereby maintain more colorful flowers fo...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-9-148
更新日期:2009-12-14 00:00:00
abstract:BACKGROUND:The ubiquitous signaling molecule melatonin (N-acetyl-5-methoxytryptamine) (MT) plays vital roles in plant development and stress tolerance. Selenium (Se) may be phytotoxic at high concentrations. Interactions between MT and Se (IV) stress in higher plants are poorly understood. The aim of this study was to ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-2110-6
更新日期:2019-11-21 00:00:00
abstract:BACKGROUND:Arabidopsis ovules comprise four morphologically distinct parts: the nucellus, which contains the embryo sac, two integuments that become the seed coat, and the funiculus that anchors the ovule within the carpel. Analysis of developmental mutants has shown that ovule morphogenesis relies on tightly regulated...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-9-29
更新日期:2009-03-16 00:00:00
abstract:BACKGROUND:A positive relationship between genome size and intron length is observed across eukaryotes including Angiosperms plants, indicating a co-evolution of genome size and gene structure. Conifers have very large genomes and longer introns on average than most plants, but impacts of their large genome and longer ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-14-95
更新日期:2014-04-16 00:00:00
abstract:BACKGROUND:Chickpea (Cicer arietinum L.) is the second most important grain legume cultivated by resource poor farmers in South Asia and Sub-Saharan Africa. In order to harness the untapped genetic potential available for chickpea improvement, we re-sequenced 35 chickpea genotypes representing parental lines of 16 mapp...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0690-3
更新日期:2016-01-27 00:00:00
abstract:BACKGROUND:Modern agriculture strives to sustainably manage fertilizer for both economic and environmental reasons. The monitoring of any nutritional (phosphorus, nitrogen, potassium) deficiency in growing plants is a challenge for precision farming technology. A study was carried out on three species of popular crops,...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02807-4
更新日期:2021-01-07 00:00:00
abstract:BACKGROUND:Callose (beta-1,3 glucan) separates developing pollen grains, preventing their underlying walls (exine) from fusing. The pollen tubes that transport sperm to female gametes also contain callose, both in their walls as well as in the plugs that segment growing tubes. Mutations in CalS5, one of several Arabido...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-5-22
更新日期:2005-10-07 00:00:00
abstract:BACKGROUND:Transcription factors GATAs are involved in plant developmental processes and respond to environmental stresses through binding DNA regulatory regions to regulate their downstream genes. However, little information on the GATA genes in Brassica napus is available. The release of the reference genome of B. na...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02752-2
更新日期:2020-12-04 00:00:00
abstract:BACKGROUND:The RAD21 cohesin plays, besides its well-recognised role in chromatid cohesion, a role in DNA double strand break (dsb) repair. In Arabidopsis there are three RAD21 paralog genes (AtRAD21.1, AtRAD21.2 and AtRAD21.3), yet only AtRAD21.1 has been shown to be required for DNA dsb damage repair. Further investi...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-014-0353-9
更新日期:2014-12-16 00:00:00
abstract:BACKGROUND:Maize bsd2 (bundle sheath defective2) is a classical C4 mutant with defective C4 photosynthesis, accompanied with reduced accumulation of Rubisco (ribulose bisphosphate carboxylase oxygenase) and aberrant mature chloroplast morphology in the bundle sheath (BS) cells. However, as a hypothetical chloroplast ch...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-2219-7
更新日期:2020-01-09 00:00:00
abstract:BACKGROUND:Nitrogen is one basic element of amino acids and grain protein in wheat. In field experiments, wheat plants were subjected to different timing of nitrogen topdressing treatments: at the stages of emergence of the top fifth leaf (TL5), top third leaf (TL3) and top first leaf (TL1) to test the regulatory effec...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-018-1563-3
更新日期:2018-12-13 00:00:00
abstract:BACKGROUND:DNA ligase enzymes catalyse the joining of adjacent polynucleotides and as such play important roles in DNA replication and repair pathways. Eukaryotes possess multiple DNA ligases with distinct roles in DNA metabolism, with clear differences in the functions of DNA ligase orthologues between animals, yeast ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-9-79
更新日期:2009-06-26 00:00:00
abstract:BACKGROUND:Bacterial blight of rice, caused by Xanthomonas oryzae pv. oryzae (Xoo), is a devastating rice disease in Southeast Asia and West Africa. OsSWEET14, encoding a sugar transporter, is known to be a major susceptible gene of bacterial blight targeted by four different transcription activator-like (TAL) effector...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02524-y
更新日期:2020-07-03 00:00:00
abstract:BACKGROUND:Homeodomain-leucine zipper (HD-ZIP) transcription factors play important roles in the growth, development and stress responses of plants, including (presumably) physic nut (Jatropha curcas), which has high drought and salinity tolerance. However, although physic nut's genome has been released, there is littl...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-1920-x
更新日期:2019-07-08 00:00:00
abstract:BACKGROUND:Isoprenylcysteine methylesterases (ICME) demethylate prenylated protein in eukaryotic cell. Until now, knowledge about their molecular information, localization and expression pattern is largely unavailable in plant species. One ICME in Arabidopsis, encoded by At5g15860, has been identified recently. Over-ex...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-10-212
更新日期:2010-09-27 00:00:00
abstract:BACKGROUND:Grapes (Vitis vinifera L.) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to the onset of ripening of nonclimacteric fruits is not fully understood which is further complicated in grapes due to seasonal and cultivar specific var...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-11-149
更新日期:2011-11-02 00:00:00
abstract:BACKGROUND:Verticillium spp. are major pathogens of dicotyledonous plants such as cotton, tomato, olive or oilseed rape. Verticillium symptoms are often ambiguous and influenced by development and environment. The aim of the present study was to define disease and resistance traits of the complex Verticillium longispor...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-10-235
更新日期:2010-11-02 00:00:00
abstract:BACKGROUND:For most cruciferous plants, which are known as important crops and a number of weeds, hybrid breeding is hampered by the unavailability of a pollination control system. Male sterility induced by a gametocide can be useful for the utilization of plant heterosis. RESULTS:The gametocidal effect of sulfonylure...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-017-1019-1
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:The peanut (Arachis hypogaea) is an important crop cultivated worldwide for oil production and food sources. Its complex genetic architecture (e.g., the large and tetraploid genome possibly due to unique cross of wild diploid relatives and subsequent chromosome duplication: 2n = 4x = 40, AABB, 2800 Mb) prese...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-12-94
更新日期:2012-06-19 00:00:00