Abstract:
:Brassinosteroids are known to promote cell elongation in a wide range of plant species but their effect on cell division has not been as extensively studied. We examined the effect of brassinolide on the kinetics and final division frequencies of regenerating leaf mesophyll protoplasts of Petunia hybrida Vilm v. Comanche. Under optimal auxin and cytokinin conditions, 10-100 nM brassinolide accelerated the time of first cell division by 12 h but had little effect on the final division frequencies after 72-120 h of culture. One micromolar brassinolide showed the same acceleration of first cell division but inhibited the final division frequency by approximately 20%. Under sub-optimal auxin conditions, 10-100 nM brassinolide both accelerated the time of first cell division and dramatically increased the 72- to 120-h final division frequencies. Isolated protoplasts may provide a useful model system to investigate the molecular mechanisms of brassinosteroid action on cell proliferation.
journal_name
Plant Cell Repjournal_title
Plant cell reportsauthors
Oh MH,Clouse SDdoi
10.1007/s002990050510subject
Has Abstractpub_date
1998-09-01 00:00:00pages
921-924issue
12eissn
0721-7714issn
1432-203Xpii
10.1007/s002990050510journal_volume
17pub_type
杂志文章abstract:KEY MESSAGE:A novel rice constitutive promoter (P OsCon1 ) was isolated. The molecular mechanism of the promoter activity was investigated. P OsCon1 could be used as an alternative constitutive promoter for crop transgenic engineering. Monocot constitutive promoter is an important resource for crop transgenic engineeri...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-014-1644-1
更新日期:2014-10-01 00:00:00
abstract:KEY MESSAGE:The Arabidopsis receptor-like cytoplasmic kinase AtRLCK VI_A3 is activated by AtROPs and is involved in trichome branching and pathogen interaction. Receptor-like cytoplasmic kinases (RLCKs) belong to the large superfamily of receptor-like kinases, which are involved in a variety of cellular processes like ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-014-1725-1
更新日期:2015-03-01 00:00:00
abstract::From the in vitro hairy root cultures of a Datura candida hybrid, 19 tropane alkaloids have been identified using capillary gas-liquid chromatography and mass spectrometry. As in the parent plants, scopolamine is the major alkaloid. Two hitherto undescribed alkaloids have been detected and their structure tentatively ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00231559
更新日期:1990-07-01 00:00:00
abstract::Capsella bursa-pastoris (L.) Medic (2n = 4x = 32) is a natural double-low (erucic acid < 1%, glucosinolates < 30 micromol/g) germplasm and shows high degree of resistance to Sclerotinia sclerotiorum. Hybridizations were carried out between two Brassica species viz. B. rapa (2n = 20) and B. napus (2n = 38) as female an...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-007-0392-x
更新日期:2007-10-01 00:00:00
abstract::A series of RAPD markers generated by a single 10-mer primer were analyzed by hybridization to amplified and genomic DNA and by sequencing in two Brassica species. Primer B18 produced different profiles of nine major bands each in both Brassica nigra (B genome) and B. napus (AC genomes). Cloning and sequencing of five...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00232727
更新日期:1995-07-01 00:00:00
abstract:KEY MESSAGE:The first Good Manufacturing Practices production of a purification-free rice-based oral cholera vaccine (MucoRice-CTB) from transgenic plants in a closed cultivation system yielded a product meeting regulatory requirements. Despite our knowledge of their advantages, plant-based vaccines remain unavailable ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-015-1911-9
更新日期:2016-03-01 00:00:00
abstract::DNA transfer into zygotic embryos of Eucalyptus globulus by microprojectile bombardment was studied with two devices: a gunpowder apparatus and a compressed-helium system. Using, as a test, the transient expression of a reporter gene, we optimized the physical and biological conditions of bombardment. Six-day-old cult...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00232737
更新日期:1995-07-01 00:00:00
abstract::A reliable protocol for the transformation of cultivated sunflower (Helianthus annuus L.) has been established, based on microprojectile bombardment of half shoot apices in combination with Agrobacterium tumefaciens coculture. Transgenic shoots have been obtained from 5 inbred lines, although transformation efficienci...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00233766
更新日期:1994-12-01 00:00:00
abstract::To develop an alternative genetic transformation system that is not dependent on an antibiotic selection strategy, the phosphomannose isomerase gene (pmi) system was evaluated for producing transgenic plants of chickpea (Cicer arietinum L.). A shoot morphogenesis protocol based on the thidiazuron (TDZ)-induced shoot m...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-009-0766-3
更新日期:2009-11-01 00:00:00
abstract::High-frequency bud break and multiple shoots were induced in apical shoot buds and nodal explants ofMorus cathayana, M. lhou andM. serrata on Murashige and Skoog (MS) medium containing 0.5-1.0 mg/l 6-benzylaminopurine (BAP). Addition of gibberellic acid (0.4 mg/l) along with BAP induced faster bud break both in apical...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF01092774
更新日期:1997-04-01 00:00:00
abstract::RNA interference (RNAi) is a sequence-specific, posttranscriptional gene silencing (PTGS) process in plants that is mediated by dsRNA homologous to the silenced gene(s). In this study, we report an efficient method to produce dsRNA using a bacterial expression system. Two fragments of the Sugarcane Mosaic Virus (SCMV)...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-010-0911-z
更新日期:2010-11-01 00:00:00
abstract::Ginger (Zingiber officinale Rosc.) is prone to photoinhibition under intense sunlight. Excessive light can be dissipated by the xanthophyll cycle, where violaxanthin de-epoxidase (VDE) plays a critical role in protecting the photosynthesis apparatus from the damage of excessive light. We isolated ~2.0 kb of ginger VDE...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-012-1254-8
更新日期:2012-08-01 00:00:00
abstract::The effects of cytokinins on the different branches of the indole alkaloid pathway were investigated in Catharanthus roseus cell cultures. Addition of zeatin to a 2,4-dichlorophenoxyacetic acid-containing medium decreased tryptamine levels and increased the bioconversion of secologanin to ajmalicine. Zeatin also enhan...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00233425
更新日期:1993-10-01 00:00:00
abstract::Embryogenic cell suspension cultures of garlic (Allium sativum L.) were initiated in liquid medium from friable embryogenic tissue. The optimal parameters for culture maintenance were: (1) an initial cell density of 1-4% (v/v); (2) medium renewal every 14 days and subculturing every 28 days; (3) a low 2,4-dichlorophen...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-005-0937-9
更新日期:2005-08-01 00:00:00
abstract::We have assessed the capacity of cultured protoplasts from two tissue sources of several commercially-grown broccoli cultivars to regenerate plants. A procedure that employs hypocotyl protoplasts and a culture medium with a high NAA:2,4-D auxin ratio was developed. The procedure permits highly efficient formation of c...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00232858
更新日期:1990-10-01 00:00:00
abstract::The cauliflower mosaic virus 35S (35S) and the enhanced 35S (E35S) promoters fused with maize alcohol dehydrogenase (Adh1) intron1 or maize shrunken locus (sh1) intronl along with maize Adh1 and rice actin (Act1) promoters fused to their respective first introns were tested for transient expression of the E.coli β-glu...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00236096
更新日期:1993-07-01 00:00:00
abstract::The interconversion between 5 to 8-membered cycloalkanones and the corresponding cycloalkanols by a cell suspension culture of Nicotiana tabacum was studied. It was found that the interconversion is at equilibrium and the balance in the equilibrium depends on the number of carbon atoms in the carbocyclic ring of the s...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00270167
更新日期:1983-04-01 00:00:00
abstract::In this opinion article, we briefly review the status of crop biotechnology research-with emphasis on the development of GM crops-in Jamaica and Venezuela. We focus on the transgenic papayas developed for both countries, and examine the factors hindering not only the development and application of this biotechnologica...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-010-0988-4
更新日期:2011-05-01 00:00:00
abstract::Protoplasts isolated from mesophyll cells of Eruca sativa Lam., cultured on suitable medium, underwent sustained cell divisions to form calli. The plating efficiency was found to be 0.4%. The protoplast-derived calli subsequently produced plantlets through organogenesis (15.71%) and somatic embryogenesis (11.25%). Reg...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00272790
更新日期:1987-12-01 00:00:00
abstract::A cDNA clone encoding an ADP-ribosylation factor from potato (Solanum tuberosum L.) was isolated. The nucleotide and deduced amino acid sequences show high homology to known ADP-ribosylation factor sequences from Arabidopsis, yeast, cow and man. In northern blot experiments, all tissues analysed showed expression of t...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00233786
更新日期:1994-12-01 00:00:00
abstract::Cell suspension cultures of bean (Phaseolus vulgaris) cv. Imuna accumulated isoflavonoid phytoalexins on exposure to elicitor from the phytopathogenic fungus Colletotrichum lindemuthianum (CL). This was preceeded by rapid increases in the activities of phenylalanine ammonia-lyase (PAL) and chalcone synthase (CHS). How...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00269060
更新日期:1989-12-01 00:00:00
abstract::In maize, Mutator transposable elements are either active or silenced within the genome. In response to environmental stress, silenced Mutator elements could be reactivated, leading to changes in genome structure and gene function. However, there is no direct experimental evidence linking environmental stress and Muta...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-010-0922-9
更新日期:2010-12-01 00:00:00
abstract::Callus cultures and cell suspension cultures derived from Ginkgo biloba L. leaves produced ginkgolidc B. In cell suspension cultures, the production reached a maximum by the 13th day of subculture and followed by a sharp decrease. The medium of Murashige and Skoog induced the highest ginkgolide B content in cultures w...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00232783
更新日期:1995-05-01 00:00:00
abstract::Hairy root culture of Ginseng (Panax ginseng) was established after roots were induced on callus following infection with Agrobacterium rhizogenes. The transformed cultures of ginseng could be subcultured as an axenic root culture in the absence of phytohormones, and grew with extensive lateral branches more rapidly t...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00272780
更新日期:1987-12-01 00:00:00
abstract::Genetic transformation of arctic bramble (Rubus arcticus L.) was achieved utilizing a Ti-plasmid vector system of Agrobacterium tumefaciens. Internodal stem segments were inoculated with Agrobacterium strain EHA101 carrying a T-DNA with the CaMV 35 S promoter-gus-int marker gene from which β-glucuronidase (GUS) is exp...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990050491
更新日期:1998-07-01 00:00:00
abstract::Approximately 10(6) protoplast-derived cell colonies of sainfoin were stressed with streptomycin and two resistant colonies were recovered. Plants regenerated from these colonies could be recallused on streptomycin-containing medium three years after growth in the absence of the antibiotic.Ultrastructural studies show...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00269636
更新日期:1986-12-01 00:00:00
abstract:: Somatic embryogenesis and whole plant regeneration were achieved in callus cultures derived from immature zygotic embryos of Acacia mangium. Embryogenic callus was induced on MS medium containing combinations of TDZ (1-2 mg/l), IAA (0.25-2 mg/l) and a mixture of amino acids. Globular embryos developed on embryogenic ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990000288
更新日期:2001-01-01 00:00:00
abstract::Eukaryotes use the ubiquitin-proteasome system to control the abundance of regulatory proteins such as cell-cycle proteins and transcription factors. Over 5% of the Arabidopsis genome encodes for proteins with an apparent functional homology to components of the ubiquitin-proteasome system. This suggests that ubiquiti...
journal_title:Plant cell reports
pub_type: 杂志文章,评审
doi:10.1007/s00299-004-0858-z
更新日期:2004-11-01 00:00:00
abstract::Methods of shoot and plant development from cotyledon explants of the tomato cultivar 'Bonner Beste' and its mutant chloronerva are described. Cotyledon mesophyll protoplasts of the mutant chloronerva have been isolated and cultured, and induced to regenerate shoots and plants. By grafting regenerated shoots of the ch...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00270102
更新日期:1983-08-01 00:00:00
abstract:: The potential of ultrasonic standing waves for trapping suspended particles was utilized successfully for differential size fractionation of plant somatic embryos. In a flow-through resonator equipped with a 200-kHz piezoceramic transducer, embryos of different sizes corresponding to different developmental stages co...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990000234
更新日期:2000-11-01 00:00:00