Abstract:
:Biphenyls are unique phytoalexins produced by plants belonging to Pyrinae, a subtribe of the economically important Rosaceae family. The formation of aucuparin, a well-known biphenyl, is induced by yeast extract (YE) in cell cultures of Sorbus aucuparia. However, the molecular mechanism underlying YE-induced activation of biphenyl biosynthesis remains unknown. Here we demonstrate that the addition of YE to the cell cultures results in a burst of reactive oxygen species (ROS; H(2)O(2) and O(2) (-)), followed by transcriptional activation of the biphenyl synthase 1 gene (BIS1) encoding the key enzyme of the biphenyl biosynthetic pathway and aucuparin accumulation. Pretreatment of the cell cultures with ROS scavenger dihydrolipoic acid and NADPH oxidase-specific inhibitor diphenylene iodonium abolished all of the above YE-induced biological events. However, when the cell cultures was pretreated with superoxide dismutase specific inhibitor N,N-diethyldithiocarbamic acid, although O(2) (-) continued to be generated, the H(2)O(2) accumulation, BIS1 expression and aucuparin production were blocked. Interestingly, exogenous supply of H(2)O(2) in the range of 0.05-10 mM failed to induce aucuparin accumulation. These results indicate that endogenous generation of H(2)O(2) rather than that of O(2) (-) is a key factor in YE-induced accumulation of biphenyl phytoalexins in cell cultures of S. aucuparia.
journal_name
Plantajournal_title
Plantaauthors
Qiu X,Lei C,Huang L,Li X,Hao H,Du Z,Wang H,Ye H,Beerhues L,Liu Bdoi
10.1007/s00425-011-1545-2subject
Has Abstractpub_date
2012-01-01 00:00:00pages
217-23issue
1eissn
0032-0935issn
1432-2048journal_volume
235pub_type
杂志文章相关文献
PLANTA文献大全abstract::Indoleacetic acid buffered at pH 7.0 induces a high growth rate in Avena coleoptile segments after a latent period, the duration of which is dependent upon both IAA concentration and temperature. A minimum latent period of 7.3 min is observed at 25° C with 10(-3) M IAA in phosphate buffer at pH 7.0.In contrast, 5×10(-...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387945
更新日期:1973-12-01 00:00:00
abstract:MAIN CONCLUSION:For the first time, a plant (rice) translin was characterized. The rice translin protein, which was octameric in native state, bound efficiently to single-stranded DNA and RNA. Translin, a DNA-/RNA-binding protein, is expressed in brain, testis and in certain malignancies. It is involved in chromosomal ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-014-2092-4
更新日期:2014-08-01 00:00:00
abstract::The possible mechanism which leads to inactivation phenomena at high intensities of blue light during the color-sensitive phase in the time course of the Hill reaction was investigated in more detail. The following results were obtained: a) The inhibition of the Hill reaction is also observed during but not prior to t...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386315
更新日期:1972-12-01 00:00:00
abstract::Two tomato mutants, Lycopersicon esculentum flacca and lateral suppressor, are assigned to map position 59 of chromosome 7. The tight linkage between these two gene loci was detected as a result of attempts to establish whether they would exhibit phenotypic interaction. The possibility that both mutants result in abno...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385489
更新日期:1982-03-01 00:00:00
abstract::Diseases of agricultural crops are caused by pathogens from several higher-order phylogenetic lineages including fungi, straminipila, eubacteria, and metazoa. These pathogens are commonly managed with pesticides due to the lack of broad-spectrum host resistance. Gastrodia anti-fungal protein (GAFP; gastrodianin) may p...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0322-0
更新日期:2006-11-01 00:00:00
abstract::Pressure-probe measurements and single-cell sampling and analysis techniques were used to determine the effect of photosynthetic production and accumulation of sugars on osmotic and turgor pressures of individual cells of barley ( Hordeum vulgare L.) source leaves. In control plants, the changes in osmotic pressure in...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0744-2
更新日期:2002-06-01 00:00:00
abstract::Senescence of barley (Hordeum vulgare L. cv. Carina) primary foliage leaves was induced by transfer of the plants into darkness for 2 d. Under these conditions senescence was characterized by a light-reversible decline in the efficiency of photosystem II, and in chlorophyll and protein contents. To isolate senescence-...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250050199
更新日期:1997-01-01 00:00:00
abstract::Gibberellic acid (GA3), indole-3-acetic acid (IAA) or kinetin ((6)N-furfurylaminopurine) applied to the apical regions of decapitated stems of derooted Phaseolus vulgaris plants, promoted (14)C-photosynthate transport to the site of hormone application. Hormonal promotion of acropetal photosynthate transport was assoc...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00401175
更新日期:1985-11-01 00:00:00
abstract::Cotton fibers are single elongated cells that develop from epidermal cells of the ovule. The chronology of fiber differentiation was investigated using cultured ovules. Epidermal cells differentiate into fiber cells approx. 3 d before anthesis. When ovules were cultured on a defined medium, fiber growth could be initi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392435
更新日期:1988-08-01 00:00:00
abstract::In order to elucidate the involvement of brassinosteroids in the cell elongation process leading to normal plant morphology, indirect immunofluorescence and molecular techniques were use to study the expression of tubulin genes in the bul1-1 dwarf mutant of Arabidopsis thaliana (L.) Heynh., the characteristics of whic...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250000467
更新日期:2001-04-01 00:00:00
abstract::The carbon-dioxide response of photosynthesis of leaves of Quercus suber, a sclerophyllous species of the European Mediterranean region, was studied as a function of time of day at the end of the summer dry season in the natural habitat. To examine the response experimentally, a "standard" time course for temperature ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00397440
更新日期:1984-09-01 00:00:00
abstract::In dark-grown soybean (Glycine max [L.] Merr.) seedlings, exposing the roots to water-deficient vermiculite (psi(w)=-0.36 MPa) inhibited hypocotyl (stem) elongation. The inhibition was associated with decreased extensibility of the cell walls in the elongation zone. A detailed spatial analysis showed xyloglucan endotr...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1369-4
更新日期:2005-02-01 00:00:00
abstract::The synthesis of a major phloem protein, PP2, was investigated by measurement of the mRNA at various stages of phloem development in Cucurbita. Quantitative assays with immuno-electrophoresis showed that the amounts of PP2 in hypocotyls of Cucurbita seedlings increased with the age of seedlings. An increase in mRNA fo...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00395032
更新日期:1987-03-01 00:00:00
abstract:MAIN CONCLUSION:The inducible vectors pER8-Gateway-3Flag and pER8-Gateway-3Flag-SRDX have been subjected to considerable research in terms of the function of transcription factors (TFs) via transcription activity and repression, respectively. Approximately 1500 TFs have been identified in Arabidopsis thaliana genome. T...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-018-2873-2
更新日期:2018-05-01 00:00:00
abstract::Carnivorous plants acquire substantial amounts of nitrogen from insects. The tropical carnivorous plant Nepenthes produces trapping organs called pitchers at the tips of tendrils elongated from leaf ends. Acidic fluid is secreted at the bottoms of the pitchers. The pitcher fluid includes several hydrolytic enzymes, an...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0768-7
更新日期:2002-07-01 00:00:00
abstract::Phi thickenings, bands of secondary wall thickenings that reinforce the primary wall of root cortical cells in a wide range of species, are described for the first time in the epiphytic orchid Miltoniopsis. As with phi thickenings found in other plants, the phi thickenings in Miltoniopsis contain highly aligned cellul...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-014-2194-z
更新日期:2015-02-01 00:00:00
abstract:MAIN CONCLUSION:Methyl-jasmonate induces large increases in p-coumarate linked to arabinoxylan in Brachypodium and in abundance of GT61 and BAHD family transcripts consistent with a role in synthesis of this linkage. Jasmonic acid (JA) signalling is required for many stress responses in plants, inducing large changes i...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-018-2968-9
更新日期:2018-11-01 00:00:00
abstract::WRKY transcription factors are crucial regulatory components of plant responses to pathogen infection. In the present study, we report isolation and functional characterization of the pathogen-responsive rice WRKY30 gene, whose transcripts accumulate rapidly in response to salicylic acid (SA) and jasmonic acid (JA) tr...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-012-1698-7
更新日期:2012-11-01 00:00:00
abstract::Sugar-beet plants, germinated in growth cabinets at 20°C and transplanted into the field after 3 weeks, developed much larger roots than plants grown from seed drilled directly into the soil. At the end of the season, the roots of transplants were 39% greater than from drilled seed-an increase of 14 m tons per hectare...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00396118
更新日期:1969-03-01 00:00:00
abstract::MicroRNAs (miRNAs) are emerging as essential regulators of biological processes. Somatic embryogenesis is one of the most important techniques for gymnosperm-breeding programs, but there is little understanding of its underlying mechanism. To investigate the roles of miRNAs during somatic embryogenesis in larch, we co...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-012-1643-9
更新日期:2012-08-01 00:00:00
abstract:MAIN CONCLUSION:Present review describes the molecular tools and strategies deployed in the trait discovery and improvement of major crops. The prospects and challenges associated with these approaches are discussed. Crop improvement relies on modulating the genes and genomic regions underlying key traits, either direc...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-020-03465-4
更新日期:2020-09-18 00:00:00
abstract::Sieve-tube plastids of Aristolochia (5 species investigated) contain several starch grains and always one large crystalloid. In Asarum (3 species investigated) starch has not been found in the sieve-tubes. Their plastids contain several cuneate crystalloids that are sometimes arranged around an invisible centre. Asaru...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388406
更新日期:1971-03-01 00:00:00
abstract::Phosphoenolpyruvate (PEP) carboxylase has been isolated from etiolated and light-grown sugar cane, and a comparison made of the physical and kinetic characteristics of the enzymes. Differences were found in the DEAE-cellulose elution profiles, in saturation kinetics with PEP as variable substrate and with Mg(2+) as va...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388679
更新日期:1974-03-01 00:00:00
abstract:MAIN CONCLUSION:Carbonylation-ROS-dependent posttranslational modification of proteins-may be regarded as one of the important events in the process of ageing or senescence in plants. Ageing is the progressive process starting from seed development (plants) and birth (animals). The life-span of living organisms depends...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-020-03414-1
更新日期:2020-07-01 00:00:00
abstract::Glutathione (GSH) is one of the main antioxidants in plants. Legumes have the specificity to produce a GSH homolog, homoglutathione (hGSH). We have investigated the regulation of GSH and hGSH synthesis by nitric oxide (NO) in Medicago truncatula roots. Analysis of the expression level of gamma-glutamylcysteine synthet...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0461-3
更新日期:2007-05-01 00:00:00
abstract::The ability of wild potatoes (Solanum spp.) to adapt to potentially stressful environmental temperatures was investigated by measuring the cold and heat tolerances of plants grown near sea-level in Lima following collection of tubers from plants growing naturally at altitudes ranging from 450 to 4,200 m. Relative cold...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392980
更新日期:1983-10-01 00:00:00
abstract::A genotype of Trifolium repens L. capable of sustaining high-frequency plant regeneration from long-term (24-month old) cell cultures has been selected. Numerous densely cytoplasmic meristemoids were formed in suspension cultures following the coordinate removal of 2,4-dichlorophenoxyacetic acid (2,4-D) and trichlorop...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00397413
更新日期:1984-09-01 00:00:00
abstract::Sieve tubes mediate the long-distance transport of nutrients and signals between source and sink organs of plants. To detect mobile phloem proteins that are differentially distributed in source and sink organs of Cucurbita maxima, we used both one-dimensional gel electrophoresis (SDS-PAGE) and matrix-assisted laser de...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250050525
更新日期:1999-02-01 00:00:00
abstract:MAIN CONCLUSION:Adaptation of the xylem under dehydration to smaller sized vessels and the increase in xylem density per stem area facilitate water transport during water-limiting conditions, and this has implications for assimilate transport during drought. The potato stem is the communication and transport channel be...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-019-03336-7
更新日期:2020-01-08 00:00:00
abstract::Zearalenone (F-2), an estrogenic factor produced by a number of Fusarium spp., stimulates a leakage of electrolytes, β-cyanin and aminoacids from three plant tissues. F-2 inhibits rubidium uptake in roots of Zea mays L. and Beta vulgaris L. var. rubra. However the effect in the latter tissue is evident after long-term...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00389051
更新日期:1978-01-01 00:00:00