Abstract:
:Gibberellins (GAs) are important plant growth regulators, regulating many plant developmental processes, including seed germination, root and stem elongation, rosette expansion, floral induction and anther development. The diverse effects of GAs on plant development make it critical to maintain an appropriate endogenous GA level and a fine-tuned GA signalling. Some global regulators in GA signalling have been identified but little is known about genes specifically involved in local implementation of GA signalling. Here we report that the Arabidopsis thaliana SBP-box gene SQUAMOSA-PROMOTER-BINDING-PROTEIN-LIKE8 (SPL8) acts as a local regulator in a subset of GA-dependent developmental processes. Previous knowledge holds that SPL8 is involved in reproductive development as deduced from its loss-of-function phenotype (Unte et al. (2003) Plant Cell 15:1009-1019). We now determined that constitutive overexpression of SPL8 affects fertility due to non-dehiscent anthers, likely resulting from a constitutive GA response, suggesting a positive role of SPL8 in GA-mediated anther development. On the other hand, SPL8 gain- and loss-of-function mutants showed opposite responses to GA and its biosynthetic inhibitor paclobutrazol (PAC) with respect to seed germination and root elongation during the seedling stage. Genes involved in GA biosynthesis and signalling are transcriptionally affected by altered SPL8 expression. Our study uncovered a tissue-dependent regulatory role for SPL8 in the response to GA signalling in plant development.
journal_name
Plant Mol Bioljournal_title
Plant molecular biologyauthors
Zhang Y,Schwarz S,Saedler H,Huijser Pdoi
10.1007/s11103-006-9099-6subject
Has Abstractpub_date
2007-02-01 00:00:00pages
429-39issue
3eissn
0167-4412issn
1573-5028journal_volume
63pub_type
杂志文章abstract::Complementary DNA clones encoding acidic and basic isoforms of the class III chitinase were isolated from Nicotiana tabacum. The clones share ca. 65% identity, are equally homologous to the class III chitinases from cucumber and Arabidopsis, and are members of small gene families in tobacco. An acidic class III chitin...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00027070
更新日期:1992-08-01 00:00:00
abstract:KEY MESSAGE:Two OsDGAT1 genes showed the ability to restore TAG and LB synthesis in yeast H1246. Alterations in the N-terminal region of OsDGAT1-1 gene revealed its regulatory role in gene function. Accumulation of triacylglycerol (TAG) or oil in vegetative tissues has emerged as a promising approach to meet the global...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-020-01085-w
更新日期:2020-10-21 00:00:00
abstract::The synthesis, modification, and breakdown of carbohydrates is one of the most fundamentally important reactions in nature. The structural and functional diversity of glycosides is mirrored by a vast array of enzymes involved in their synthesis (glycosyltransferases), modification (carbohydrate esterases) and breakdow...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::Deepwater rice can grow in the regions of Southeast Asia that are flooded during the monsoon season because it has several adaptations allowing it to survive under flooded conditions. One such adaptation is the ability for rapid internode elongation upon partial submergence to maintain its foliage above the rising flo...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/b:plan.0000009693.26740.c3
更新日期:1997-01-01 00:00:00
abstract::Many studies in both animal and plant systems have shown that matrix attachment regions (MARs) can increase the expression of flanking transgenes. However, our previous studies revealed no effect of the chicken lysozyme MARs (chiMARs) on transgene expression in the first generation transgenic Arabidopsis thaliana plan...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-006-9107-x
更新日期:2007-03-01 00:00:00
abstract::A three-dimensional model of curculin, a sweet-tasting and taste-modifying protein from the fruits of Curculigo latifolia, was built from the X-ray coordinates of GNA, a mannose-binding lectin from snowdrop (Galanthus nivalis). The three mannose-binding sites present in GNA were found in curculin but are devoid of man...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005704616565
更新日期:1997-03-01 00:00:00
abstract::A partial cDNA clone (PSnir) encoding the C-terminal region of nitrite reductase was isolated from a lambda gt11 library of the gymnosperm Pimus sylvestris (L.). Nucleotide sequence analysis showed that PSnir contains a reading frame encoding 105 amino acid residues. The amino acid sequence revealed a homology to NiR ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00043873
更新日期:1994-06-01 00:00:00
abstract::Dobzhansky stated that nothing in biology makes sense except in the light of evolution. A close corollary, and the central theme of this paper, is that everything makes a lot more sense in the light of phylogeny. Systematics is in the midst of a renaissance, heralded by the widespread application of new analytical app...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:
更新日期:2000-01-01 00:00:00
abstract::The treatment of barley aleurone layers with gibberellic acid (GA3) results in the synthesis of two groups of α-amylase isozymes. Addition of abscisic acid (ABA) at the same time as GA3 inhibited the synthesis of both groups of isozymes. However, midcourse ABA addition (12 h or later after GA3) had a more inhibitory e...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00016430
更新日期:1987-01-01 00:00:00
abstract::We have previously shown that the expression of SmCP which encodes Solanum melongena cysteine proteinase is ethylene-inducible and is under circadian control. To understand the regulation of SmCP, a 1.34-kb SmCP 5'-flanking region and its deletion derivatives were analyzed for cis-elements using GUS and luc fusions an...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-005-0954-7
更新日期:2005-03-01 00:00:00
abstract::Protein folding in vivo is mediated by an array of proteins that act either as 'foldases' or 'molecular chaperones'. Foldases include protein disulfide isomerase and peptidyl prolyl isomerase, which catalyze the rearrangement of disulfide bonds or isomerization of peptide bonds around Pro residues, respectively. Molec...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:10.1007/BF00039383
更新日期:1996-10-01 00:00:00
abstract::Maize and tomato cDNA clones have been hybridized in Southern blotting experiments to plant genomic DNA prepared from different lines to detect restriction fragment polymorphisms (RFPs). In maize we have found that a high degree of genetic variability is present, even among domestic inbred lines. Most randomly chosen ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00020093
更新日期:1985-03-01 00:00:00
abstract:KEY MESSAGE:This manuscript describes the functions of an Argonaute protein named AGO17 in rice. AGO17 is required for the development of rice reproductive tissues. Argonaute (AGO) proteins are a well-conserved multigene family of regulators mediating gene silencing across eukaryotes. Monocot plants have additional mem...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-020-01071-2
更新日期:2021-01-01 00:00:00
abstract::The identification of some nodule-specific host proteins (nodulins) from common bean (Phaseolus vulgaris L.), a tropical ureide-transporting legume, is described. Particularly, the existence and developmental expression of several abundant nodule-specific transcripts of P. vulgaris are shown, including leghemoglobin, ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00020530
更新日期:1987-11-01 00:00:00
abstract::We isolated a rice cDNA encoding nucleoside diphosphate kinase (NDK, EC 2.7.4.6). The deduced amino acid sequence of the rice NDK shows highest homology to spinach NDK-I. The rice NDK gene exhibits a strong codon bias (73.8% GC) in the third position of the codon. DNA blot analysis indicated that at least single NDK g...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00021824
更新日期:1993-12-01 00:00:00
abstract::The chrysanthemum is one of popular flowers in the world and a host for several viruses. So far, molecular interaction studies between the chrysanthemum and viruses are limited. In this study, we carried out a transcriptome analysis of chrysanthemum in response to three different viruses including Cucumber mosaic viru...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-015-0317-y
更新日期:2015-06-01 00:00:00
abstract::Iron uptake and translocation in plants are important processes for both plant and human nutrition, whereas relatively little is known about the molecular mechanisms of iron transport within the plant body. Several reports have shown that yellow stripe 1 (YS1) and YS1-like (YSL) transporters mediate metal-phytosiderop...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-009-9500-3
更新日期:2009-08-01 00:00:00
abstract::In a search for plant genes expressed during early symbiotic interactions between Medicago sativa and Rhizobium meliloti, we have isolated and characterized two alfalfa genes which have strong sequence similarity to members of the Enod12 gene family of Pisum sativum. The M. sativa genes, MsEnod12A and B, encode putati...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019952
更新日期:1993-01-01 00:00:00
abstract::The gene encoding nitrite reductase (nir) from the cyanobacterium Synechococcus sp. PCC 7942 has been identified and sequenced. This gene comprises 1536 nucleotides and would encode a polypeptide of 56,506 Da that shows similarity to nitrite reductase from higher plants and to the sulfite reductase hemoprotein from en...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00023618
更新日期:1993-03-01 00:00:00
abstract::GRAS proteins belong to a plant-specific transcription factor family. Currently, 33 GRAS members including a putative expressed pseudogene have been identified in the Arabidopsis genome. With a reverse genetic approach, we have constructed a "phenome-ready unimutant collection" of the GRAS genes in Arabidopsis thalian...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-008-9345-1
更新日期:2008-08-01 00:00:00
abstract::Mitochondrial maturation during imbibition of rice embryos follows the transition of unstructured double membrane bound pro-mitochondria to the typical cristae-rich mitochondrial structures observed in mature plant cells. During the first 48 h following imbibition, an ordered increase in the abundance of transcripts e...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-005-3688-7
更新日期:2006-01-01 00:00:00
abstract::cDNA clones were isolated and sequenced that encode two related but distinct rice cyclophilins, Cyp1 and Cyp2. The predicted amino acid sequences of each are 72% identical to human T-cell cyclophilin. Genomic DNA gel blot analysis suggests cyclophilins in rice are encoded by a small, 6-10-member gene family. Both Cyp1...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00028878
更新日期:1994-08-01 00:00:00
abstract::The High Mobility Group (HMG) proteins of vertebrate animals have been the subject of intensive study because of evidence that they may be structural proteins of transcriptionally active chromatin. Organisms other than vertebrate animals have chromatin proteins which meet the operational criteria of salt extractabilit...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00015875
更新日期:1987-09-01 00:00:00
abstract::A new cytoplasmic male sterile sunflower, CMS3 [44], was characterised in relation to the Petiolaris (PET1) cytoplasmic male-sterile sunflower, CMS89 [25]. Southern blot analysis showed that the mitochondrial genome of CMS3 contains unique rearrangements in at least five loci (atp6, atp9, atpA, nad1 + 5 and coxIII) co...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019495
更新日期:1994-12-01 00:00:00
abstract::This study describes the expression of a sucrose carrier at various developmental stages in Ricinus communis. A partial-length cDNA clone, RcSUT1, was isolated by RT-PCR from Ricinus seedling RNA. This is almost identical to a sucrose carrier cDNA, Rscr1, which has previously been isolated by library screening. Howeve...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006040306581
更新日期:1998-10-01 00:00:00
abstract::Co-suppression of host genes and 35S transgenes encoding nitrate reductase was previously reported in transgenic tobacco plants (Nicotiana tabacum cv. Paraguay or Burley) using either a full-length cDNA or fragments devoid of the 3' and/or 5' UTR. Co-suppression was previously shown to affect a limited fraction of the...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019126
更新日期:1995-10-01 00:00:00
abstract::This is the first report to describe the detailed analysis of TATA sequence requirements for the initiation of transcription for RNA polymerase II in a plant in vitro transcription system. We examined the transcriptional activities associated with 24 promoters, including wild-type (TATATATA), and the 21 point and two ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006056128129
更新日期:1998-12-01 00:00:00
abstract::The LfKCS45 gene with a high sequence similarity to known 3-ketoacyl-CoA synthases of the membrane-bound fatty acid elongase was isolated from Lesquerella fendleri. The LfKCS45 gene has a 1464 bp open reading frame without introns, and is predicted to encode a polypeptide of 487 amino acids with an estimated molecular...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-004-6235-z
更新日期:2004-12-01 00:00:00
abstract::Two S-adenosylmethionine synthetase (SAMS) cDNAs, PcSAMS1 and PcSAMS2, have been identified in Pinus contorta. We found that the two genes are differentially expressed during root development. Thus, PcSAMS1 is preferentially expressed in roots and exhibits a specific expression pattern in the meristem at the onset of ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1010637012528
更新日期:2001-06-01 00:00:00
abstract::To analyse experimentally the correlation between transgene silencing and the presence of an inverted repeat in transgenic Arabidopsis thaliana plants, expression of the beta-glucuronidase (gus) gene was studied when present as a convergently transcribed inverted repeat or as a single copy in otherwise isogenic lines....
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1010614522706
更新日期:2001-07-01 00:00:00