解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::De-etiolation involves a number of phenotypic changes as the plants shift from a dark-grown (etiolated) to a light-grown (de-etiolated) morphology. Whilst these light-induced, morphological changes are thought to be mediated by plant hormones, the precise mechanism/s are not yet fully understood. Here we provide furth...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0685-x
更新日期:2008-04-01 00:00:00
abstract::The pseudobulb of Oncidium orchid is a storage organ for supplying water, minerals and carbohydrates to the developing inflorescence. Different patterns of mannan, starch and pectin metabolism were observed in the pseudobulb of three developmental stages by histochemical staining and high performance anion exchange ch...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0681-1
更新日期:2008-04-01 00:00:00
abstract::Water deficits consistently promote higher concentrations of anthocyanins in red winegrapes and their wines. However, controversy remains as to whether there is any direct effect on berry metabolism other than inhibition of growth. Early (ED) and late (LD) season water deficits, applied before or after the onset of ri...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0598-8
更新日期:2007-12-01 00:00:00
abstract::Homeotic transformation of stamens into pistil-like structures (called pistillody) has been reported in cytoplasmic substitution (alloplasmic) lines of bread wheat (Triticum aestivum) having the cytoplasm of a wild relative species, Aegilops crassa. Our previous studies indicated that pistillody is caused by alteratio...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0608-x
更新日期:2007-12-01 00:00:00
abstract::The development of an infection in soybean [Glycine max L. cultivar (cv.) Peking] roots by incompatible (I) and compatible (C) populations of soybean cyst nematode (SCN) (Heterodera glycines) was assayed using an AffymetriX soybean GeneChip. This time-course microarray analysis, using 37,744 probe sets, measured trans...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0581-4
更新日期:2007-11-01 00:00:00
abstract::Ozone (O3), a major photochemical oxidant, causes leaf injury in plants. Plants synthesize salicylic acid (SA), which is reported to greatly affect O3 sensitivity. However, the mechanism of SA biosynthesis under O3 exposure remains unclear. Plants synthesize SA either by a pathway involving phenylalanine as a substrat...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0556-5
更新日期:2007-10-01 00:00:00
abstract::Hahb-4 is a member of Helianthus annuus (sunflower) subfamily I of HD-Zip proteins. Transgenic Arabidopsis thaliana plants constitutively expressing this gene exhibit a strong tolerance of water stress in concert with morphological defects and a delay in development. In order to obtain a drought-tolerant phenotype wit...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0560-9
更新日期:2007-10-01 00:00:00
abstract::The possible interaction of the plant hormones auxin and ethylene and the role of 1-aminocyclopropane-1-carboxylate (ACC) deaminase containing bacteria on ethylene production in canola (Brassica campestris) in the presence of inhibitory concentrations of growth regulators were investigated. The effects of auxin (indol...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0532-0
更新日期:2007-09-01 00:00:00
abstract::Plants are able to pre-stress their tissues in order to actuate their organs. Here, we demonstrate with two tissue types of the secondary xylem of conifers (normal wood and compression wood of spruce (Picea abies)) that either tensile or compressive stresses can develop in the longitudinal direction during the swellin...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0544-9
更新日期:2007-09-01 00:00:00
abstract::We examined photoperiodic response of lotus (Nelumbo nucifera) rhizome morphogenesis (its transition to a storage organ) by using seed-derived plants. Rhizome enlargement (increase in girth) was brought about under 8, 10 and 12 h photoperiods, whereas the rhizomes elongated under 13 and 14 h photoperiods. Rhizomes elo...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0536-9
更新日期:2007-09-01 00:00:00
abstract::Networks of transcription factors control physiological, developmental and environmental responses. Root iron acquisition responses are controlled by the essential bHLH protein FIT. Recently, two group Ib BHLH genes were reported to be iron deficiency-regulated. Here, we studied expression patterns of these two group ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0535-x
更新日期:2007-09-01 00:00:00
abstract::In Arabidopsis the in vitro culture of immature zygotic embryos (IZEs) at a late stage of development, on the solid medium containing synthetic auxin, leads to formation of somatic embryos via direct somatic embryogenesis (DSE). The presented results provide evidence that in IZE cells competent for DSE are located in ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0510-6
更新日期:2007-08-01 00:00:00
abstract::The phloem is an important conduit for the transport of signaling molecules including RNA. Phloem sap has served as a source of RNA to profile uncontaminated phloem transcriptomes but its collection is difficult in many species. Laser capture microdissection techniques offer a valuable alternative for isolating RNA fr...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0509-z
更新日期:2007-08-01 00:00:00
abstract::The long-distance transport and actions of the phytohormone methyl jasmonate (MeJA) were investigated by using the short-lived positron-emitting isotope 11C to label both MeJA and photoassimilate, and compare their transport properties in the same tobacco plants (Nicotiana tabacum L.). There was strong evidence that M...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0503-5
更新日期:2007-07-01 00:00:00
abstract::The surface of plants is covered by cuticular wax, which contains a mixture of very long-chain fatty acid (VLCFA) derivatives. This wax surface provides a hydrophobic barrier which reduces non-stomatal water loss. One component of the cuticular wax is the alkyl esters, which typically contain a VLCFA esterified to an ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0489-z
更新日期:2007-07-01 00:00:00
abstract::Arabinogalactan-proteins (AGPs) are present on the surface of all plant cells. AtAGP17, 18 and 19 comprise the lysine-rich AGP subfamily in Arabidopsis and consist of an N-terminal signal peptide, a classical AGP domain interrupted by a small Lys-rich region and a C-terminal glycosylphosphatidylinositol (GPI) anchor a...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0478-2
更新日期:2007-06-01 00:00:00
abstract::Phytophthora spp., some of the more important casual agents of plant diseases, are responsible for heavy economic losses worldwide. Plant defensins have been introduced as transgenes into a range of species to increase host resistance to pathogens to which they were originally susceptible. However, the effectiveness a...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0471-1
更新日期:2007-06-01 00:00:00
abstract::A critical evolutionary step during rice domestication was the elimination of seed shattering. Wild rice disperses seeds freely at maturity to guarantee the propagation, while cultivated rice retains seeds on the straws to make easy harvest and decrease the loss of production. The molecular basis for this key event du...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0460-4
更新日期:2007-06-01 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::In order to better understand the various pathways of sucrose and starch catabolism in the anther of lily (Lilium hybrida var. "Enchantment"), invertase (EC 3.2.1.26) and amylase (EC 3.2.1.1, EC 3.2.1.2) activities were measured separately in different fractions (anther wall, locular fluid and microspore/pollen) and c...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0443-5
更新日期:2007-05-01 00:00:00
abstract::Biphenyls and dibenzofurans are the phytoalexins of the Maloideae, a subfamily of the economically important Rosaceae. The carbon skeleton of the two classes of antimicrobial secondary metabolites is formed by biphenyl synthase (BIS). A cDNA encoding this key enzyme was cloned from yeast-extract-treated cell cultures ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0435-5
更新日期:2007-05-01 00:00:00
abstract::Secondary walls are the major component of wood, and studies of the mechanisms regulating secondary wall synthesis is important for understanding the process of wood formation. We have previously shown that the NAC domain transcription factor SECONDARY WALL-ASSOCIATED NAC DOMAIN PROTEIN1 (SND1) is a key regulator of s...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0498-y
更新日期:2007-05-01 00:00:00
abstract::A polyclonal antibody has been raised against ferulic acid ester linked to arabinoxylans (AX). 5-O-feruloyl-alpha-L-arabinofuranosyl(1-->4)-beta-D-xylopyranosyl was obtained by chemical synthesis, and was coupled to bovine serum albumin for the immunization of rabbit. The polyclonal antibody designated 5-O-Fer-Ara was...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0422-x
更新日期:2007-04-01 00:00:00
abstract::Compared with our knowledge of senescence in annuals and biennials, little is known about age-related changes in perennials. To get new insights into the mechanisms underlying aging in perennials, we measured oxidative stress markers in leaves and organelles, together with abscisic acid levels in leaves of 2- and 7-ye...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0412-z
更新日期:2007-03-01 00:00:00
abstract::Free porphyrins and their magnesium complexes, including chlorophylls, are potent photo-sensitizers. Plants usually accumulate these compounds bound to proteins together with protective compounds like carotenoids. Besides their protective role, carotenoids can play a structural role in these complexes. To analyze the ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0409-7
更新日期:2007-03-01 00:00:00
abstract::Symbiotic association of legume plants with rhizobia bacteria culminates in organogenesis of nitrogen-fixing root nodules. In indeterminate nodules, plant cells accommodate rhizobial infection by enclosing each bacterium in a membrane-bound, organelle-like compartment called the symbiosome. Numerous symbiosomes occupy...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0369-y
更新日期:2007-02-01 00:00:00
abstract::The amino acid content increases substantially in salt-stressed plants. The physiological relevance of this phenomenon remains largely unknown. Using the MIFE ion flux measuring technique, we studied the effects of physiologically relevant concentrations of 26 amino acids on NaCl-induced K(+) flux from barley root epi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0386-x
更新日期:2007-02-01 00:00:00
abstract::We used a newly synthesized allotetraploid between C. sativus (2n = 2x = 14, n gametic chromosome number, x haploid chromosome number) and C. hystrix (2n = 2x = 24) to study the genomic events in its early generations. Results from cytological characterization of the F(1) and the allotetraploid progenies showed that t...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0381-2
更新日期:2007-02-01 00:00:00
abstract::Chlamydomonas reinhardtii Dangeard generates photoreceptor currents (PCs) upon light excitation. These currents play a key role in the signal transduction chain for photomotility responses. We have previously found that inhibition of PCs by tryptone occurs only in gametes that display chemotaxis toward this agent, and...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0357-2
更新日期:2007-01-01 00:00:00
abstract::Aluminum (Al(3+)) has been recognized as a main toxic factor in crop production in acid lands. Phosphatidic acid (PA) is emerging as an important lipid signaling molecule and has been implicated in various stress-signaling pathways in plants. In this paper, we focus on how PA generation is affected by Al(3+) using Cof...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0348-3
更新日期:2007-01-01 00:00:00
abstract::During anaerobiosis in darkness the main route for ATP production in plants is through glycolysis in combination with fermentation. We compared the organ-specific anaerobic fermentation of flooding-tolerant rice (Oryza sativa) and sensitive wheat (Triticum aestivum) seedlings. A sensitive laser-based photoacoustic tra...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0333-x
更新日期:2006-12-01 00:00:00
abstract::Endophytic isolates of Trichoderma species are being considered as biocontrol agents for diseases of Theobroma cacao (cacao). Gene expression was studied during the interaction between cacao seedlings and four endophytic Trichoderma isolates, T. ovalisporum-DIS 70a, T. hamatum-DIS 219b, T. harzianum-DIS 219f, and Tric...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0314-0
更新日期:2006-11-01 00:00:00
abstract::Single cell sap sampling and analysis were used to measure the longitudinal and radial distribution of sucrose, glucose and fructose in the apical cell division zone and in the basal, elongated zone of the Ricinus hypocotyl. Sucrose and hexose increased in concentration from the apex to the base of the seedling axis. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0309-x
更新日期:2006-11-01 00:00:00
abstract::The transcription activity of the pinoresinol-lariciresinol reductase (PLR) gene of Linum usitatissimum (so-called LuPLR), a key gene in lignan synthesis, was studied by RT-PCR and promoter-reporter transgenesis. The promoter was found to drive transcription of a GUSint reporter gene in the seed coats during the flax ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0308-y
更新日期:2006-11-01 00:00:00
abstract::Rust fungi are obligate biotrophic pathogens that differentiate a series of specialized cells to establish infection. One of these cells, the haustorium, which serves to absorb nutrients from living host cells, normally develops only in planta. Here, we show that the rust fungus Uromyces fabae (Pers.) Schroet. stimula...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0320-2
更新日期:2006-11-01 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::Seed plants with compound leaves constitute a polyphyletic group, but studies of diverse taxa show that genes of the class 1 KNOTTED-LIKE HOMEOBOX (KNOX1) family are often involved in compound leaf development. This suggests that knox1 genes have been recruited on multiple occasions during angiosperm evolution (Bharat...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0288-y
更新日期:2006-10-01 00:00:00
abstract::Maltose is the predominant form of carbon exported from the chloroplast at night. Plants that lack either the chloroplast maltose transporter or disproportionating enzyme 2 (DPE2, EC 2.4.1.25) have excess maltose in leaves. We confirmed that DPE2 is not associated with the chloroplast in Arabidopsis thaliana. Using no...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0263-7
更新日期:2006-09-01 00:00:00
abstract::The enzyme beta-glucuronidase (GUS) is well characterized in animals and microbes. However, this enzyme is not well studied in plants and is widely assumed to be absent in them. In this study we document the ubiquitous presence of GUS in the model plants Arabidopsis thaliana, Oryza sativa, Nicotiana tabacum and Zea ma...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0276-2
更新日期:2006-09-01 00:00:00
abstract::The dehydration-responsive element binding proteins (DREB1)/C-repeat (CRT) binding factors (CBF) function as transcription factors and bind to the DRE/CRT cis-acting element (core motif: G/ACCGAC) commonly present in cold-regulated (COR) genes and subsequently upregulate the expression of such genes in Arabidopsis. We...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0273-5
更新日期:2006-09-01 00:00:00