Abstract:
:The expression of Brazil nut storage albumin genes is highly regulated during seed development. Several sequences in the promoter of one of these genes show homologies with the target sites of the maize O2 bZIP regulatory protein. We therefore asked whether the O2 protein would recognize these promoter sequences. We show that the O2 protein binds to three different sequences (F1, F2 and F3). F1 and F3 are hybrid C/G and A/G boxes, respectively, that are homologous to the O2-binding site of a maize alpha-zein gene. F2 is a new O2-binding sequence related to the O2 target sites of the Coix alpha-coxin, the maize b-32 genes and the AP-1 pseudopalindrome. Molecular modelling showed that an Asn and a Ser in the 02 DNA binding domain make different base-specific contacts with each operator. 5' Promoter deletions of the be2S1 gene showed that the domain containing the O2 target sites F1 and F2 is required for detectable reporter gene expression in transgenic tobacco seeds. Moreover, the homologous coix O2 protein was shown to in situ transactivate the promoter region encompassing the three O2-binding sites F1, F2 and F3. Thus, these sites may be in vivo regulatory sequences mediating activation by bZIP regulatory proteins.
journal_name
Plant Mol Bioljournal_title
Plant molecular biologyauthors
Vincentz M,Leite A,Neshich G,Vriend G,Mattar C,Barros L,Weinberg D,de Almeida ER,de Carvalho MP,Aragão F,Gander ESdoi
10.1023/a:1005874404706subject
Has Abstractpub_date
1997-08-01 00:00:00pages
879-89issue
6eissn
0167-4412issn
1573-5028journal_volume
34pub_type
杂志文章abstract::Plants are capable to de novo synthesize the essential amino acids leucine, isoleucine and valine. Studies in recent years, however, also revealed that plants have the potential to degrade leucine or may be all of the branched-chain amino acids. One of the enzymes participating in both biosynthesis and degradation is ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-004-7533-1
更新日期:2005-01-01 00:00:00
abstract::Using RNA from developing cotyledons and leaves of bean two products were synthesizedin vitro, with Mr 31000 and 31500 which are antigenically related to the subunit of phytoferritin (Mr 26500). The relative abundance of the two products is dependent on the type of tissue from which the RNA was derived. Evidence is pr...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF01578592
更新日期:1983-11-01 00:00:00
abstract::Seed dormancy is an important developmental process that prevents pre-harvest sprouting in many grains and other seeds. Abscisic acid (ABA), a plant hormone, plays a crucial role in regulating dormancy but the underlying molecular regulatory mechanisms are not fully understood. An Arabidopsis zinc-finger gene, MEDIATO...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/B:PLAN.0000028730.10834.e3
更新日期:2004-01-01 00:00:00
abstract::It has been known for more than a decade that increasing the gene copy number does not necessarily lead to increased gene activity. Plants have developed efficient mechanisms such as post-transcriptional gene silencing (PTGS) to regulate abnormal gene expression in a sequence-specific fashion. PTGS of (trans)genes can...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:10.1023/a:1006499832424
更新日期:2000-06-01 00:00:00
abstract::The SELF PRUNING (SP) gene controls the regularity of the vegetative-reproductive switch along the compound shoot of tomato and thus conditions the 'determinate' (sp/sp) and 'indeterminate' (SP_) growth habits of the plant. SP is a developmental regulator which is homologous to CENTRORADIALIS (CEN) from Antirrhinum an...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/b:plan.0000004333.96451.11
更新日期:2003-08-01 00:00:00
abstract::We have cloned, sequenced, and examined the expression of genes from pine trees that appear to encode extracellular class II chitinase. Nucleotide sequence analysis indicates a coding sequence composed of three exons interrupted by two introns at locations identical to those found in other chitinase genes that possess...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005708611020
更新日期:1997-04-01 00:00:00
abstract::Ferulate 5-hydroxylase (F5H) of the monolignol pathway catalyzes the hydroxylation of coniferyl alcohol, coniferaldehyde and ferulic acid to produce 5-hydroxyconiferyl moieties, which lead to the formation of sinapic acid and syringyl (S) lignin monomers. In contrast, guaiacyl (G) lignin, the other major type of ligni...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-020-00991-3
更新日期:2020-06-01 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::The development of an efficient transformation system is a prerequisite for the molecular analysis of gene expression in plants. In crop plants, this development has been hindered by difficulties encountered both in whole plant regeneration from protoplasts and in the general insusceptibility of monocots to Agrobacter...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00039024
更新日期:1988-07-01 00:00:00
abstract::We investigated the spatial and temporal expression patterns of two rice calcium-dependent protein kinases (CDPKs), OsCDPK2 and OSCDPK11, using isoform-specific antisera. Bands of the expected molecular sizes for OsCDPK2 (59 kDa) and OsCDPK11 (61 kDa) were detected on western blots. OsCDPK2 and OsCDPK11 mRNA and prote...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006316422400
更新日期:1999-12-01 00:00:00
abstract::Plant microRNAs (miRNAs) act as negative regulators of gene expression by slicing target transcripts or inhibiting translation. A number of miRNAs play important roles in development. In order to investigate the potential function of miRNAs during male gametogenesis in rice, we obtained both gene and small RNA express...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-012-9898-x
更新日期:2012-09-01 00:00:00
abstract::Rice provides a staple source of energy, protein and other nutrients to half of the world population. Over 90 of the rice seeds consists of starch and protein by dry weight. The quantity and property of starch and protein thus play a dominant role in the yield and quality of rice. The amylase content of starch is a de...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-004-7507-3
更新日期:2005-09-01 00:00:00
abstract::A seedling lethal mutant of Nicotiana plumbaginifolia (sdl-1) was isolated by transposon tagging using a maize Dissociation (Ds) element. The insertion mutation was produced by direct co-transformation of protoplasts with two plasmids: one containing Ds and a second with an Ac transposase gene. sdl-1 seedlings exhibit...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1019851913083
更新日期:2002-10-01 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::Unicellular algae grow well under limiting CO2 conditions, aided by a carbon concentrating mechanism (CCM). In C. reinhardtii, this mechanism is inducible and is present only in cells grown under low CO2 conditions. We constructed a cDNA library from cells adapting to low CO2, and screened the library for cDNAs specif...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00021807
更新日期:1996-05-01 00:00:00
abstract::Sugarcane (Saccharum spp. hybrids) is a major feedstock for commercial bioethanol production. The recent integration of conversion technologies that utilize lignocellulosic sugarcane residues as well as sucrose from stem internodes has elevated bioethanol yields. RNAi suppression of lignin biosynthetic enzymes is a su...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-016-0527-y
更新日期:2016-11-01 00:00:00
abstract::Cosmid binary vectors for the introduction of DNA into plant cells have been constructed. These vectors are derived from the replicon of the broad host range plasmid pRK2 and contain the T-DNA border regions between which have been placed a chimaeric gene conferring resistance to kanamycin in plant cells. Appropriate ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00015678
更新日期:1985-05-01 00:00:00
abstract::Dehiscence of oilseed rape pods, commonly known as pod shatter, is a process of agronomic importance that results in seed loss causing yield reductions and carry-over of the crop into the following growing season. In an effort to understand the mechanisms underlying this developmental event, the changes in gene expres...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00040589
更新日期:1994-01-01 00:00:00
abstract:KEY MESSAGE:Our study firstly elaborated the underlying mechanism of endogenous CH4-induced abiotic tolerance, along with an alteration of ABA sensitivity by mimicking the endogenous CH4 production in MtMCR transgenic Arabidopsis. Endogenous methane (CH4) production and/or emission have been ubiquitously observed in st...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-019-00914-x
更新日期:2019-11-01 00:00:00
abstract::A MADS-box gene was isolated using the suppressive subtractive hybridization library between early-flowering mutant and wild-type trifoliate orange (Poncirus trifoliata L. Raf.). This gene is highly homologous with Arabidopsis SHORT VEGETATIVE PHASE (SVP). Based on real-time PCR and in situ hybridization during bud di...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-010-9660-1
更新日期:2010-09-01 00:00:00
abstract::The location on the wheat chloroplast DNA map and the nucleotide sequences of the genes coding for tRNA GCC (Gly) (trnG-GCC), tRNA GUC (Asp) (trnD-GUC) and tRNA GCA (Cys) (trnC-GCA) have been determined. These three genes are located in the large single copy region of the chloroplast genome, about half-way between one...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF02418249
更新日期:1985-09-01 00:00:00
abstract::The rice blast resistance gene Pib is a member of the nucleotide binding site (NBS) and leucine-rich repeat (LRR) class of plant disease resistance (R) genes and belongs to a small gene family. We describe here the isolation and characterization of a Pib homologue (PibH8), and extensive investigation of the expression...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1012457113700
更新日期:2001-11-01 00:00:00
abstract::Micropropagated shoots of three forest tree species, poplar (Populus tremula x P. alba), wild cherry (Prunus avium L.) and walnut (Juglans nigra x J. regia), were inoculated each with six different wild-type Agrobacterium strains. Poplar and wild cherry developed tumors that grew hormone-independently, whereas on waln...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00040638
更新日期:1991-09-01 00:00:00
abstract::Tomato golden mosaic virus (TGMV), a member of the geminivirus group, has a genome consisting of two DNA molecules designated the A and B components. Both are required for infectivity in healthy plants, although the former has been shown to replicate independently in transgenic plants containing tandem direct repeats ...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00017993
更新日期:1987-11-01 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::Polyphenol oxidases (PPOs) catalyze the oxidation of ortho-diphenols to the corresponding quinones (EC 1.10.3.1). In plants PPOs appear in gene families, and the corresponding isoenzymes are located to the thylakoid lumen of chloroplasts. Although plant PPOs are often discussed with regard to their role in defense rea...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-012-9943-9
更新日期:2012-09-01 00:00:00
abstract::Salicylic acid (SA) is known to play an important role in the interaction between plant and micro-organisms, both symbiotic and pathogen. In particular, high levels of SA block nodule formation and mycorrhizal colonization in plants. A mutant of Lotus japonicus, named Ljsym4-2, was characterized as unable to establish...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-009-9585-8
更新日期:2010-03-01 00:00:00
abstract::StCDPK1 is a calcium dependent protein kinase expressed in tuberizing potato stolons and in sprouting tubers. StCDPK1 genomic sequence contains eight exons and seven introns, the gene structure is similar to Arabidopsis, rice and wheat CDPKs belonging to subgroup IIa. There is one copy of the gene per genome and it is...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-009-9462-5
更新日期:2009-05-01 00:00:00
abstract::The major phytoalexin in alfalfa is the isoflavonoid (-)-medicarpin (or 6aR, 11aR)-medicarpin. Isoflavone reductase (IFR), the penultimate enzyme in medicarpin biosynthesis, is responsible for introducing one of two chiral centers in (-)-medicarpin. We have isolated a 1.18 kb alfalfa cDNA (pIFRalf1) which, when expres...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00037051
更新日期:1991-10-01 00:00:00
abstract::Analysis of genes controlling flowering time (heading date) contributes to our understanding of fundamental principles of plant development and is of practical importance because of the effects of flowering time on plant adaptation and crop yield. This review discusses the extent to which plants may share common genet...
journal_title:Plant molecular biology
pub_type: 杂志文章,评审
doi:
更新日期:1997-09-01 00:00:00