Abstract:
:Arabidopsis accessions are either winter-annuals, which require cold winter temperatures for spring flowering, or rapid-cycling summer annuals. Typically, winter annual accessions have functional FRIGIDA (FRI) and FRIGIDA-LIKE 1 (FRL1) proteins that promote high expression of FLOWERING LOCUS C (FLC), which prevents flowering until after winter. In contrast, many rapid-cycling accessions have low FLC levels because FRI is inactive. Using biochemical, functional and bioinformatic approaches, we show that FRI and FRL1 contain a stable, central domain that is conserved across the FRI superfamily. This core domain is monomeric in solution and primarily alpha-helical. We analysed the ability of several FRI deletion constructs to function in Arabidopsis plants. Our findings suggest that the C-terminus, which is predicted to be disordered, is required for FRI to promote FLC expression and may mediate protein:protein interactions. The contribution of the FRI N-terminus appears to be limited, as constructs missing these residues retained significant activity when expressed at high levels. The important N- and C-terminal regions differ between members of the FRI superfamily and sequence analysis identified five FRI families with distinct expression patterns in Arabidopsis, suggesting the families have separate biological roles.
journal_name
Plant Mol Bioljournal_title
Plant molecular biologyauthors
Risk JM,Laurie RE,Macknight RC,Day CLdoi
10.1007/s11103-010-9635-2subject
Has Abstractpub_date
2010-07-01 00:00:00pages
493-505issue
4-5eissn
0167-4412issn
1573-5028journal_volume
73pub_type
杂志文章abstract::Plant isoprenoids are derived from two independent pathways, the cytosolic mevalonate pathway and the plastid methylerythritol 4-phosphate (MEP) pathway. We used green fluorescent fusion protein assays to demonstrate that the Arabidopsis MEP pathway enzymes are localized to the chloroplast. We have also characterized ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-008-9297-5
更新日期:2008-04-01 00:00:00
abstract::We present evidence for a unique covalent modification of a nuclear-encoded precursor protein targeted to plant mitochondria. We investigated the early events of in vitro import for the mitochondrial precursor of the ATP synthase F1beta subunit from Nicotiana plumbaginifolia (pF1beta) into plant mitochondria. When pF1...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006375123496
更新日期:1999-11-01 00:00:00
abstract::The Arabidopsis ga1 mutant has very low levels of endogenous, active gibberellins and thus has an extreme dwarf phenotype; application of GA3 induces stem elongation and flower development. To test the hypothesis that GA action in this system involves changes in gene expression, we have cloned mRNAs whose abundance ch...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00023557
更新日期:1994-02-01 00:00:00
abstract::An approximately 247-kb genomic region from FF genome of wild rice Oryza brachyantha, possessing the smallest Oryza genome, was compared to the orthologous approximately 450-kb region from AA genome, O. sativa L. ssp. japonica. 37 of 38 genes in the orthologous regions are shared between japonica and O. brachyantha. A...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-007-9178-3
更新日期:2007-07-01 00:00:00
abstract::To elucidate the evolutionary relationship between the Spermatophyta, Pteridophyta and Bryophyta, we cloned a fragment of chloroplast DNA from the fern Angiopteris lygodiifolia (Pteridophyta) and determined its nucleotide sequence. The fragment contained the atpB, rbcL, trnR-CCG, dedB and psaI genes. Comparisons of th...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00018458
更新日期:1992-01-01 00:00:00
abstract::Members of the plant-specific GRAS family of putative transcription factors are involved in various aspects of plant development. SCARECROW (SCR) is a member of this protein family and plays a significant role in the radial patterning of both roots and shoots. However, little is known about the regulation of SCR expre...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-004-0892-9
更新日期:2004-05-01 00:00:00
abstract:KEY MESSAGE:This study provides the first genetic evidence for the role of PP2A in tuberization, demonstrating that the catalytic subunit StPP2Ac2b positively modulates tuber induction, and that its function is related to the regulation of gibberellic acid metabolism. The results contribute to a better understanding of...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-016-0555-7
更新日期:2017-02-01 00:00:00
abstract::Glycinebetaine is an important osmoprotectant in bacteria, plants, and animals, but only little information is available on the synthesis of glycinebetaine in tree plants. Among four mangrove species, glycinebetaine could be detected only in Avicennia marina. Pinitol was the main osmoprotectant in the other three spec...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006497113323
更新日期:2001-02-01 00:00:00
abstract::In the post-genomic era, many useful tools have been developed to accelerate the investigation of gene functions. Fluorescent proteins have been widely used as protein tags for studying the subcellular localization of proteins in plants. Several fluorescent organelle marker lines have been generated in dicot plants; h...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-015-0397-8
更新日期:2016-01-01 00:00:00
abstract::Recent studies with dicot plants reveal that floral organ development is controlled by a group of regulatory factors containing the MADS domain. In this study, we have isolated and characterized a cDNA clone from rice, OsMADS1, which encodes a MADS-domain-containing protein. The OsMADS1 amino acid sequence shows 56.2%...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00013751
更新日期:1994-10-01 00:00:00
abstract::High molecular weight double-stranded (ds) RNAs have been detected in apparently virus-free French (common) bean Phaseolus vulgaris cv. Black Turtle Soup (BTS). Several other bean cultivars were free of detectable high molecular weight dsRNAs. The dsRNAs have been partially characterized and have homology to the BTS g...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00017873
更新日期:1985-01-01 00:00:00
abstract::Phaseolin is a glycoprotein that constitutes the major storage protein in bean seeds. The phaseolin gene promoters function in a seed-specific manner. In an attempt to understand if events following transcription of the gene also contribute to the seed-specific accumulation of the phaseolin protein, we studied the eff...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00040527
更新日期:1992-09-01 00:00:00
abstract::Eukaryotes express several cytoplasmic HSP70 genes, and their encoded proteins participate in diverse cellular processes. Three cDNAs encoding highly expressed cytoplasmic HSP70 homologues from Pisum sativum were cloned and characterized. They were designated PsHSP71.2, PsHSC71.0, and PsHSP70b. These HSP70 genes have ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019312
更新日期:1995-02-01 00:00:00
abstract::Plant infections with cassava latent virus (CLV) were mediated by the Ti plasmid of Agrobacterium tumefaciens containing either monomeric or dimeric copies of the virus genome. The CLV DNAs caused typical symptoms when they were inoculated in Agrobacterium strains C58, LBA4404 and a virE mutant A1026, but not other Ag...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019520
更新日期:1988-11-01 00:00:00
abstract::By differential screening of a cDNA library of two-week-old rice seedlings cDNA clones were obtained, corresponding to shoot-specific mRNAs. By sequence analysis two of these clones were found to be rbcS cDNA clones. The mRNA corresponding to a third cDNA clone (COS5) displayed an expression pattern similar to the exp...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019157
更新日期:1990-09-01 00:00:00
abstract::We have isolated and analysed a 2 kb region of the mitochondrial genome of Arabidopsis thaliana (Columbia) showing a high level of nucleotide identity with the mitochondrial (mt) rps14 small-subunit ribosomal protein gene from Oenothera berteriana and Vicia faba, as well as with an open reading frame (ORF) located ups...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00028903
更新日期:1992-12-01 00:00:00
abstract::The phytohormone abscisic acid is probably present in all higher plants. This hormone is necessary for regulation of several events during seed development and for the response to environmental stresses such as desiccation, salt and cold. An important part of the physiological response to abscisic acid is achieved thr...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:10.1023/a:1006058700720
更新日期:1998-06-01 00:00:00
abstract::A mutant exhibiting conditional male sterility, in which fertility was restored under conditions of high humidity, was identified in T-DNA tagged lines of Arabidopsis thaliana. Scanning electron microscopy (SEM) demonstrated that the pollen surface was almost smooth and the reticulate pattern not prominent. Thus, the ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/B:PLAN.0000009269.97773.70
更新日期:2003-09-01 00:00:00
abstract::Higher-plant, green and red algal chloroplasts are surrounded by a double membrane envelope. The glaucocystophyte plastid (cyanelle) has retained a prokaryotic cell wall between the two envelope membranes. The complex chloroplasts of Euglena and dinoflagellates are surrounded by three membranes while the complex chlor...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:
更新日期:1998-09-01 00:00:00
abstract::The first step in the routing of newly synthesized proteins into the secretory pathway is the binding of the nascent signal sequence to the signal recognition particle. The mammalian signal recognition particle is a complex consisting of 6 proteins and a single 7S RNA molecule. Signal recognition particle-like complex...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00042359
更新日期:1993-12-01 00:00:00
abstract::Repetitive DNA sequences were detected directly on somatic metaphase chromosome spreads from soybean root tips using fluorescent in situ hybridization. Methods to spread the forty small metaphase chromosomes substantially free of cellular material were developed using protoplasts. The specific DNA probe was a 1.05 kb ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00036810
更新日期:1991-07-01 00:00:00
abstract::SAUR-AC1 is a small-auxin-up-RNA (SAUR) gene of Arabidopsis. Here we demonstrate that the SAUR-AC1 promoter region induces accumulation of a reporter transcript upon treatment with auxin and is preferentially active in elongating hypocotyls and certain other organs and tissues of transgenic Arabidopsis and tobacco pla...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005875300606
更新日期:1997-07-01 00:00:00
abstract::Primer extension was used to characterize alpha-amylase mRNAs from aleurone tissue of barley (Hordeum vulgare L. cv. Himalaya) grains. Two synthetic oligonucleotides, specific for the low-pI and high-pI alpha-amylase groups, were used as primers for synthesis of cDNA from total RNA preparations. Between them, these tw...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00023427
更新日期:1991-04-01 00:00:00
abstract::Lectin receptor-like kinases (LecRLKs) are members of RLK family composed of lectin-like extracellular recognition domain, transmembrane domain and cytoplasmic kinase domain. LecRLKs are plasma membrane proteins believed to be involved in signal transduction. However, most of the members of the protein family even in ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-015-0319-9
更新日期:2015-05-01 00:00:00
abstract::We have sequenced a plastid gene cluster from the unicellular red alga Cyanidium caldarium which is located downstream from the psbA gene and contains, in the following order, genes for a beta-allophycocyanin-like protein (apcB'), a putative 9.5 kDa allophycocyanin linker protein (apcL9.5) and a putative 29 kDa phycoc...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00014494
更新日期:1992-10-01 00:00:00
abstract::The transcription factor ABA-Insensitive5 (ABI5) is a key regulator of ABA signaling and stress response in Arabidopsis seeds and seedlings. Potential ABI5-interacting proteins were identified by a yeast two-hybrid screen; the most prevalent interactors were a family of four highly conserved plant-specific proteins wi...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-008-9344-2
更新日期:2008-08-01 00:00:00
abstract::Sugar is an important resource for energy generation and developmental regulation in plants, and sucrose starvation causes enormous changes in cellular morphology, enzyme activities and gene expression. Genome-wide gene expression profiling provides a comprehensive knowledge of gene expression under nutrient depletion...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-006-9100-4
更新日期:2007-03-01 00:00:00
abstract::Glyoxalase II is part of the glutathione-dependent glyoxalase detoxification system. In addition to its role in the detoxification of cytotoxic 2-oxo-aldehydes, specifically methylglyoxal, it has been suggested that the glyoxalase system may also play a role in controlling cell differentiation and proliferation. Durin...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005891123344
更新日期:1997-11-01 00:00:00
abstract::Porphobilinogen deaminase (PBG deaminase) is an early enzyme of the pathway for chlorophyll and heme synthesis. Using degenerate oligonucleotide primers, based on amino acid sequence data for purified PBG deaminase from pea, a fragment was amplified from Arabidopsis genomic DNA by PCR, and then used to isolate both a ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00028854
更新日期:1994-11-01 00:00:00
abstract::A vector has been designed that contains a truncated CaMV (cauliflower mosaic virus) 35S promoter fused to a receptor gene encoding beta-glucuronidase (GUS), placed adjacent to the left border sequence of an Agrobacterium vector. In potato plants transformed with this vector, different patterns of transcription were d...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00020557
更新日期:1991-02-01 00:00:00