Abstract:
:Quantitative real-time polymerase chain reaction (PCR) assays were designed that enabled the zygosity of transgenes in soybean [Glycine max (L.) Merrill] and peanut (Arachis hypogaea L.) to be determined. The two zygosity assays, based on TaqMan technology that uses a fluorogenic probe which hybridizes to a PCR target sequence flanked by primers, were both accurate and reproducible in the determination of the number of transgenes present in a cell line. In the first assay, in which TaqMan assays were performed on increasing amounts of a plasmid containing the transgene of interest, a linear relationship between the level of fluorescence and the template amount was produced. Using the resultant linear relationships as standard curves, we were able to determine the zygosity of both soybeans segregating for the cry1Ac transgene and that of a T1 peanut segregating for the hph transgene. In the second assay, a relative determination of copy number (referred to as comparative Ct) was performed on transgenic soybeans by comparing the amplification efficiency of the transgene of interest to that of an endogenous gene in a multiplexed PCR reaction. Both methods proved to be sufficiently sensitive to differentiate between homozygotes and hemizygotes. These assays have numerous potential applications in plant genetic engineering and tissue culture, including the hastening of the identification of transgenic tissue, selecting transformation events with a low number of transgenes and the monitoring of the transmission of transgenes in subsequent crosses.
journal_name
Plant Cell Repjournal_title
Plant cell reportsauthors
Schmidt M,Parrott Wdoi
10.1007/s002990100326subject
Has Abstractpub_date
2001-07-01 00:00:00pages
422-428issue
5eissn
0721-7714issn
1432-203Xjournal_volume
20pub_type
杂志文章abstract:KEY MESSAGE:Our data present H 2 S in a new role, serving as a multi-faceted transducer to different response mechanisms during NO-induced acquisition of tolerance to flooding-induced hypoxia in maize seedling roots. Nitric oxide (NO), serving as a secondary messenger, modulates physiological processes in plants. Recen...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-016-2037-4
更新日期:2016-11-01 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::Innovations in plant breeding like genome editing methods raised questions about the adequacy of established regulatory policies for plant breeding and biotechnology in view of these new breeding methods and the resulting products. Most countries follow the principle approach that only those plants will be regulated u...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-019-02482-2
更新日期:2020-01-01 00:00:00
abstract::Embryogenic cell suspension cultures were established from Triticum aestivum X Leymus angustus F1 hybrids, using compact nodular calli derived from inflorescence segments. Calli originating from leaf segments did not give rise to stable cell suspensions. Growth measurements of the cell suspensions revealed that they c...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00235258
更新日期:1992-03-01 00:00:00
abstract::A method has been devised which allows the rapid production of fine suspension cultures of small aggregate size from suspension cultures of large average aggregate size, such as those of Capsicum frutescens. The method, which uses a Waring blender for aseptic homogenisation of cultures, has also been shown to be effec...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00269538
更新日期:1988-10-01 00:00:00
abstract::The steroidal hormone brassinosteroids (BRs) play important roles in plant growth and development. Genetic, genomic and proteomic studies in Arabidopsis have identified major BR signaling components and elucidated the signal transduction pathway from the cell surface receptor kinase BRI1 to the BES1/BZR1 family of tra...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-013-1438-x
更新日期:2013-07-01 00:00:00
abstract:KEY MESSAGE:Rice and chickpea GDPD s are transcriptionally influenced by mineral deficiencies; especially, by phosphate starvation and CaGDP1 encodes an active glycerophosphodiester phosphodiesterase enzyme. Glycerophosphodiester phosphodiesterases (GDPDs) are enzymes involved in the degradation of glycerophosphodieste...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-016-1984-0
更新日期:2016-08-01 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::Callus cultures of Vitis labruscana cv. Concord were initiated from both immature fruit and petiole tissue. Analysis revealed that the acid hydrolyzable precursors to β-damascenone, a compound important to the flavor of most grape species, were present in both callus types. Light and increased sucrose concentration we...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00231971
更新日期:1994-05-01 00:00:00
abstract::Protoplasts were isolated from embryogenic callus ofAbies alba L. which originated from immature seeds. The protoplasts were immobilized in alginate beads in order to follow the development of single protoplasts.Surrounding culture medium was modified from Kao and Michayluk (1975). After cell wall regeneration subsequ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00716854
更新日期:1989-02-01 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::Diuraphis noxia (Russian wheat aphid, RWA) is a major pest on wheat in South Africa and most other wheat growing countries. Being a probing-sucking insect, RWAs insert their stylets into the phloem sieve elements and feed on the phloem sap. This feeding causes necrotic lesions in resistant varieties, or decoloration o...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-005-0001-9
更新日期:2006-02-01 00:00:00
abstract::This article describes conditions to optimize the yield of viable protoplasts from callus tissue of Asparagus densiflorus cv. Sprengeri and their subsequent regeneration into plantlets. Callus tissue was initiated by culturing spear sections (5-7 mm) on Murashige and Skoog (MS) medium supplemented with 0.8% (wt/vol) B...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990050364
更新日期:1997-12-01 00:00:00
abstract::Ma bamboo (Dendrocalamus latiflorus Munro) belongs to Dendrocalamus genus, Bambusease tribe, Bambusoideae subfamily, Poaceae family. It is a representative species of clumping bamboo, and a principal commercial species for various construction purposes using mature culms and for human consumption using young shoots. A...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-011-1112-0
更新日期:2011-11-01 00:00:00
abstract::Tomato has a relatively short growth cycle (fruit ready to pick within 65-85 days from planting) and a relatively high yield (the average for globe tomatoes is 3-9 kg fruit per plant rising to as much as 40 kg fruit per plant). Tomatoes also produce large amounts of important primary and secondary metabolites which ca...
journal_title:Plant cell reports
pub_type: 杂志文章,评审
doi:10.1007/s00299-018-2283-8
更新日期:2018-10-01 00:00:00
abstract::An endo-pectate lyase (PL; EC 4.2.2.2), originally cloned fiom the phytopathogenic bacterium Erwinia chrysanthemi EC16, was expressed in recA (-) E. coli strain DK1, purified to a single band by isoelectric focusing and used to induce berberine production in established plant suspension cultures of Thalictrum minus L....
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00233776
更新日期:1994-12-01 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::The expression of green fluorescent protein (GFP) and its inheritance were studied in transgenic oat ( Avena sativa L.) plants transformed with a synthetic green fluorescent protein gene [sgfp(S65T)] driven by a rice actin promoter. In vitro shoot meristematic cultures (SMCs) induced from shoot apices of germinating m...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-002-0542-0
更新日期:2003-01-01 00:00:00
abstract::Diarrheal diseases caused by Vibrio cholerae and enterotoxigenic Escherichia coli (ETEC) are worldwide health problems that might be prevented with vaccines based on edible plants expressing the B subunit from either the cholera toxin (CTB) or the E. coli heat labile toxin (LTB). In this work we analyzed the immunity ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-007-0439-z
更新日期:2008-01-01 00:00:00
abstract::Most infections of plant roots are initiated in the region of elongation; the mechanism for this tissue-specific localization pattern is unknown. In alfalfa expressing PsUGT1 antisense mRNA under the control of the cauliflower mosaic virus (CaMV) 35S promoter, the cell cycle in roots is completed in 48 h instead of 24...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-004-0787-x
更新日期:2004-07-01 00:00:00
abstract::The sequences of the 3' untranslated region (UTR) of the manganese superoxide dismutase (MnSOD) genes in wheat (Triticum aestivum) were found to be quite variable with different predicted thermostabilities. The degradation rates of the 3' UTR variants and the coding region were measured following exposure to endogenou...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-005-0046-9
更新日期:2006-03-01 00:00:00
abstract::The growth of Distichlis spicata suspension cultures in LS medium without NaCl was inhibited 54% by 2 mM proline. In medium containing 260 mM NaCl, 10 mM proline inhibited growth by only 22%. The uptake and metabolism of 10 mM L-[1-(13)C] proline was followed by (13)C NMR and ninhydrin analyses of suspensions cultured...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00269924
更新日期:1988-08-01 00:00:00
abstract::The parameters for optimal regeneration of seven commercial strawberry cultivars were tested using a range of explants and culture conditions. Efficient levels of regeneration--those needed to carry out transformation experiments--with the cultivars Calypso, Pegasus, Bolero, Tango and Emily were achieved with leaf dis...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-002-0530-4
更新日期:2003-01-01 00:00:00
abstract::Phenylalanine ammonia-lyase (PAL) activity, contents of phenolic acids and ethylene production during the lag-phase, and contents of phenolic acids at the late exponential phase, showed significant differences in embryogenic (EC) and non-embryogenic (NEC) suspension cultures of Medicago sativa L. Maximum PAL activity ...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00232569
更新日期:1991-08-01 00:00:00
abstract:KEY MESSAGE:By comparing series full-length cDNA libraries stressed and control, the dynamic process of salt stress response in Upland cotton was studied, and reactive oxygen species and gibberellins signaling pathways were proposed. The Upland cotton is the most important fiber plant with highly salt tolerance. Howeve...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-015-1761-5
更新日期:2015-06-01 00:00:00
abstract::5-Deoxy-(iso)flavonoids are biosynthesized from 6'-deoxychalcone (isoliquiritigenin). The coaction of a reductase with chalcone synthase (CHS) has been established in soybean cells to be responsible for the synthesis of 6'-deoxychalcone. Western blot analysis of crude extracts from cultured cells of Glycyrrhiza echina...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00241936
更新日期:1993-01-01 00:00:00
abstract::Haploid plants were regenerated from cultured unfertilized ovaries of Hordeum vulgare L. (barley). Optimal response was obtained by the addition of 0.6 μM 4-chloro-2-methylphenoxyacetic acid (MCPA), 2.8 μM indole-3-acetic acid (IAA) and 4.4 μM 6-benzyladenine (BA) in the N6 medium. Further increase in the rate of call...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00239094
更新日期:1993-01-01 00:00:00
abstract::Most perennial plants must pass through a long juvenile phase of vegetative development before they are capable of flowering. We have developed a method specifying inflorescence proliferation to bypass juvenility and maintain the adult phase. Bamboo ( Bambusa edulis) inflorescences were amplified by incubation in Mura...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-003-0571-3
更新日期:2003-06-01 00:00:00
abstract:: The influences of light conditions, sucrose and ethylene on in vitro formation and storability of onion (Allium cepa L.) bulblets were studied in various accessions. Light, sucrose and ethylene influenced bulb formation. Storability was primarily enhanced by a high sucrose concentration (100 g/l) in the culture mediu...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990000295
更新日期:2001-02-01 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