Abstract:
:Microtubules are thought to be major determinants of plant morphogenesis, through effects on planes of cell division and on directions of differential cell expansion. In differentiation and redifferentiation processes, tubulin expression may prove a useful early indicator of cell activity. We examined the expression and localization of the pea alpha-tubulin gene TubA1 in situ and in transgenic alfalfa (Medicago sativa) to explore its use as a probe for plant development, and as a test case for correct developmental expression between two legume species commonly compared for studies of symbiosis with Rhizobium. The TubA1 mRNA was more abundant in root tips and immature leaves than in other tissues of pea. The promoter of TubA1 was fused to beta-glucuronidase (GUS) to analyze alpha-tubulin expression in transgenic alfalfa. Transient assays indicated that the TubA1 gene is transcribed at moderate levels compared to the cauliflower mosaic virus (CaMV) 35S promoter. Histochemical staining for GUS activity confirmed a correlation between TubA1 expression and cell division in nodules, roots and leaves. TubA1 promoter activity was first detected in the inner cortex of the root between 18 h and 24 h after spot inoculation with Rhizobium meliloti. Expression of a c-myc epitope fused to the carboxy-terminus of TubA1 resulted in an incorporation into the microtubular cytoskeleton, demonstrating the effectiveness of at least one epitope tag in creating functional tubulin fusions.
journal_name
Plant Mol Bioljournal_title
Plant molecular biologyauthors
Stotz HU,Long SRdoi
10.1023/a:1006338401808subject
Has Abstractpub_date
1999-11-01 00:00:00pages
601-14issue
5eissn
0167-4412issn
1573-5028journal_volume
41pub_type
杂志文章abstract::A drought- and abscisic acid (ABA)-inducible gene, His1, was isolated from Lycopersicon pennellii, a drought-resistant relative of cultivated tomato, and the gene structure was defined experimentally. The nucleotide sequence of His1 predicts a protein of 202 amino acid residues, with a significant sequence homology to...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00020112
更新日期:1996-01-01 00:00:00
abstract:KEY MESSAGE:IEF, a novel plasma plasma membrane protein, is important for exine formation in Arabidopsis. Exine, an important part of pollen wall, is crucial for male fertility. The major component of exine is sporopollenin which are synthesized and secreted by tapetum. Although sporopollenin synthesis has been well st...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-020-01114-8
更新日期:2021-01-22 00:00:00
abstract::We have characterized two sets of cDNA clones representing the glutamine synthetase (GS) mRNA in soybean nodules. Using the 3'-untranslated regions of a representative member of each set, as gene member(s) specific probes, we have shown that one set of the GS genes are expressed in a nodule-specific manner, while the ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00028970
更新日期:1993-09-01 00:00:00
abstract::In an attempt to identify domains directly involved in the signal transduction of phytochrome B (phyB), we over-expressed the achromophoric C-terminal half of phyB under control of the CaMV-35S promoter in transgenic Arabidopsis. In three independent transgenic lines, we detected accumulation of the introduced protein...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00040726
更新日期:1996-08-01 00:00:00
abstract::Acyl-ACP thioesterases are involved in regulating chain termination of fatty acid biosynthesis in plant systems. Previously, acyl-ACP thioesterase purified from Brassica napus seed tissue has been shown to have a high preference for hydrolysing oleoyl-ACP. Here, oligonucleotides derived from B. napus oleoyl-ACP thioes...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00021532
更新日期:1993-11-01 00:00:00
abstract::The conserved protein CBF5, initially regarded as a centromere binding protein in yeast and higher plants, was later found within nucleoli and in Cajal bodies of yeast and metazoa. There, it is assumed to be involved in posttranscriptional pseudouridinylation of various RNA species that might be important for RNA proc...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-007-9226-z
更新日期:2007-11-01 00:00:00
abstract::Mitogen-activated protein kinases (MAPKs) constitute one of the most critical signaling components in plants. A typical example is wound-induced protein kinase (WIPK), which functions during pathogen responses in tobacco plants (Nicotiana tabacum). Searching for direct down-stream components, we previously isolated a ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-007-9240-1
更新日期:2007-12-01 00:00:00
abstract::A cDNA with sequence similarity to isocitrate lyase (ICL) genes was isolated from the unicellular eukaryotic green alga Chlamydomonas reinhardtii as a light-induced mRNA in the carotenoid biosynthetic mutant strain FN68. The 416 amino acid open reading frame shows significant sequence similarity to isocitrate lyases o...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005728411921
更新日期:1997-02-01 00:00:00
abstract::Leaves develop as flat lateral organs from the indeterminate shoot apical meristem. The establishment of polarity along three-dimensional axes, proximal-distal, medial-lateral, and adaxial-abaxial axes, is crucial for the growth of normal leaves. The mutations of ASYMMETRIC LEAVES1 (AS1) and AS2 of Arabidopsis thalian...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-012-9929-7
更新日期:2012-08-01 00:00:00
abstract::The nucleotide sequence of a cDNA prepared from poly(A)+ RNA from Lycopersicon esculentum fruit codes for a protein, M(r) 20,812, with features representative of the protein core of arabinogalactan proteins. The deduced amino acid sequence resembles that of peptides of arabinogalactan proteins isolated from carrot and...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00020254
更新日期:1995-05-01 00:00:00
abstract::Young pine seedlings respond to environmental stress by induced synthesis of pinosylvin, a stilbene phytoalexin. Heartwood of pine trees is characterized by a high content of pinosylvin. The formation of pinosylvin from cinnamoyl-CoA and three molecules malonyl-CoA catalysed by pinosylvin synthase is typical of the ge...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006163030646
更新日期:1999-01-01 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::As a highly active plant viral promoter that is able to function in a wide variety of cell types, the cauliflower mosaic virus (CaMV) 35S promoter has the potential for harboring a plant enhancer element. We tested this possibility and demonstrated that a 338 base pair fragment isolated from the region upstream of the...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00027403
更新日期:1988-05-01 00:00:00
abstract::Despite the presence in nature of many functional gene families that contain several to many highly similar sequences, the presence of identical DNA sequence repeats is widely thought to predispose transgene inserts to homology dependent gene silencing (HDGS). The induction of transcriptional gene silencing (TGS) by R...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-005-5101-y
更新日期:2005-06-01 00:00:00
abstract::We describe the isolation and characterization of maize cDNAs that are transcribed from a small gene family and encode a novel group of receptor-like kinases (RLKs). The distinctive extracellular domain of these novel RLKs includes a unique number and arrangement of leucine-rich repeats (LRRs), a proline-rich region (...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006012530241
更新日期:1998-07-01 00:00:00
abstract::Homospermidine synthase is the first specific enzyme in the biosynthesis of pyrrolizidine alkaloids. Whereas the substrates putrescine and spermidine are part of the highly dynamic polyamine pool of plants, the product homospermidine is incorporated exclusively into the necine base moiety of pyrrolizidine alkaloids. R...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-009-9514-x
更新日期:2009-09-01 00:00:00
abstract:KEY MESSAGE:This review contains functional roles of MYB transcription factors in the transcriptional regulation of anthocyanin biosynthesis in horticultural plants. This review describes potential uses of MYB TFs as tools for metabolic engineering for anthocyanin production. Anthocyanins (ranging from red to blue) are...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:10.1007/s11103-018-0771-4
更新日期:2018-09-01 00:00:00
abstract::The chloroplast psbB operon includes five genes encoding photosystem II and cytochrome b 6 /f complex components. The psbN gene is located on the opposite strand. PsbN is localized in the thylakoid and is present even in the dark, although its level increases upon illumination and then decreases. However, the translat...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-014-0248-z
更新日期:2014-12-01 00:00:00
abstract::A clone encoding a proline-rich protein (ZmPRP) has been obtained from maize root by differential screening of a maturing elongation root cDNA library. The amino acid sequence deduced from the full-length cDNA contains a putative signal peptide and a highly repetitive sequence containing the PEPK motif, indicating tha...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006129703262
更新日期:1999-03-01 00:00:00
abstract::Using a 2,4-dichlorophenoxyacetic acid (2,4-D)-dependent tobacco cell-suspension culture we analyzed early hormone-induced molecular events preceding cell division. By differential screening of a cDNA library to mRNAs derived from hormone-starved cells treated with 2,4-D for 4 h, seven non-cross hybridizing cDNA clone...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00016152
更新日期:1987-03-01 00:00:00
abstract::We have compared physical and genetic maps of the region around the legJ gene in pea. In this vicinity there are four B-type legumin genes, arranged as two close pairs. The detection of a recombination event within this gene cluster allows the orientation of this group of genes within the surrounding linkage group to ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00038999
更新日期:1993-04-01 00:00:00
abstract::Previous study showed that the magnesium-protoporphyrin IX chelatase H subunit (CHLH/ABAR) positively regulates abscisic acid (ABA) signaling. Here, we investigated the functions of a CHLH/ABAR interaction protein, the chloroplast co-chaperonin 20 (CPN20) in ABA signaling in Arabidopsis thaliana. We showed that down-e...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-013-0082-8
更新日期:2013-10-01 00:00:00
abstract::As a first step toward elucidating the in vivo function of plant bZIP proteins and their related G-box cis elements, we have introduced a dominant negative inhibitor of G-box-dependent transcriptional activation into tobacco plants by transforming them with a truncated EmBP-1 gene (deltaEmBP) containing the DNA bindin...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006081009173
更新日期:1998-11-01 00:00:00
abstract::A 7.4 kb segment of a Euglena nuclear gene encoding a portion of the polyprotein precursor to the light-harvesting chlorophyll a/b-binding protein of photosystem II (LHCPII) has been isolated and sequenced. Nine exons can be assembled into a continuous open reading frame encoding 113 amino acids of the C-terminus of a...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00034956
更新日期:1992-01-01 00:00:00
abstract::We report the isolation and characterisation of a wound-induced cDNA designated AoPR1 from a suspension of mesophyll cells that had been mechanically isolated from cladodes of light-grown Asparagus officinalis seedlings by grinding in a mortar and pestle. The transcript abundance is up-regulated following cell separat...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00026782
更新日期:1992-07-01 00:00:00
abstract::WRKY transcription factors are involved in various biological processes, such as development, metabolism and responses to stress. However, their exact roles in abiotic stress tolerance are largely unknown. Here, we demonstrated a working model for the function of a WRKY gene (ThWRKY4) from Tamarix hispida in the stres...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-013-0063-y
更新日期:2013-07-01 00:00:00
abstract::DNA methylation plays an important role in the gene-silencing network of higher eukaryotes. We have analyzed the 21.5-kb maintenance methyltransferase (M-MTase) gene, met1, of the multicellular green alga Volvox carteri. The met1 transcript was detected only during the period when DNA replication and cell division are...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-006-9091-1
更新日期:2007-02-01 00:00:00
abstract::Starch-branching enzymes (SBE) alter starch structure by breaking an alpha-1,4 linkage and attaching the reducing end of the new chain to a glucan chain by an alpha 1,6 bond. In maize, three isoforms of SBE have been identified. In order to examine the function of the SBEI isoform, a reverse-genetics PCR-based screen ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1013335217744
更新日期:2002-02-01 00:00:00
abstract::Plants respond to phosphate (Pi) deficiency through adaptive mechanisms involving several morphological, biochemical and molecular changes. In this study, we have characterized the structure and expression of a tomato (Lycopersicon esculentum L.) phosphate starvation-induced gene (TPSI1). A 3.5 kb genomic fragment con...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005729309569
更新日期:1997-03-01 00:00:00
abstract::Two distinct cDNAs for 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) were obtained from a glyphosate-tolerant tobacco cell line. The cDNAs were 89% identical and the predicted sequences of the mature proteins were greater than 83% identical with EPSPS proteins from other plants. Tobacco EPSPS proteins were more ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00028730
更新日期:1991-12-01 00:00:00