Abstract:
:The regulation of gravistimulation-induced ethylene production and its role in gravitropic bending was studied in Antirrhinum majus L. cut flower stems. Gravistimulation increased ethylene production in both lower and upper halves of the stems with much higher levels observed in the lower half. Expression patterns of three different 1-aminocyclopropane-1-carboxylate (ACC) synthase (ACS) genes, an ACC oxidase (ACO) and an ethylene receptor (ETR/ERS homolog) gene were studied in the bending zone of gravistimulated stems and in excised stem sections following treatment with different chemicals. One of the ACS genes (Am-ACS3) was abundantly expressed in the bending zone cortex at the lower side of the stems within 2 h of gravistimulation. Am-ACS3 was not expressed in vertical stems or in other parts of (gravistimulated) stems, leaves or flowers. Am-ACS3 was strongly induced by indole-3-acetic acid (IAA) but not responsive to ethylene. The Am-ACS3 expression pattern strongly suggests that Am-ACS3 is responsible for the observed differential ethylene production in gravistimulated stems; its responsiveness to IAA suggests that Am-ACS3 expression reflects changes in auxin signalling. Am-ACS1 also showed increased expression in gravistimulated and IAA-treated stems although to a much lesser extent than Am-ACS3. In contrast to Am-ACS3, Am-ACS1 was also expressed in non-bending regions of vertical and gravistimulated stems and in leaves, and Am-ACS1 expression was not confined to the lower side cortex but evenly distributed over the diameter of the stem. Am-ACO and Am-ETR/ERS expression was increased in both the lower and upper halves of gravistimulated stems. Expression of both Am-ACO and Am-ETR/ERS was responsive to ethylene, suggesting regulation by IAA-dependent differential ethylene production. Am-ACO expression and in vivo ACO activity, in addition, were induced by IAA, independent of the IAA-induced ethylene. IAA-induced growth of vertical stem sections and bending of gravistimulated flowering stems were little affected by ethylene or 1-methylcyclopropene treatments, indicating that the differential ethylene production plays no pivotal role in the kinetics of gravitropic bending.
journal_name
Plantajournal_title
Plantaauthors
Woltering EJ,Balk PA,Nijenhuis-Devries MA,Faivre M,Ruys G,Somhorst D,Philosoph-Hadas S,Friedman Hdoi
10.1007/s00425-004-1359-6subject
Has Abstractpub_date
2005-01-01 00:00:00pages
403-13issue
3eissn
0032-0935issn
1432-2048journal_volume
220pub_type
杂志文章相关文献
PLANTA文献大全abstract::The occurrence and amount of soluble and insoluble phenolics in mycorrhizal and non-mycorrhizal roots of Picea abies (L.) Karst, were investigated, p-Hydroxybenzoic acid glucoside, picein, piceatannol and its glucoside, isorhapontin, catechin and ferulic acid could be identified by high-performance liquid chromatograp...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00239996
更新日期:1990-08-01 00:00:00
abstract::Exogenous gibberellic acid, A3 (GA3) inhibits phytochrome mediated betacyanin synthesis in seedlings of Amaranthus caudatus. The growth retardants, β-chloroethyl-trimethylammonium chloride (CCC), 'isopropyl-4'-(triethylammonium chloride)-5'-methylphenyl piperidine carboxylate (AMO 1618) and tributyl-2,4,-dichlorobenzy...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00380717
更新日期:1975-01-01 00:00:00
abstract:MAIN CONCLUSION:PtrGH9A7, a poplar β-type endo-1,4-β-glucanase gene induced by auxin, promotes both plant growth and lateral root development by enhancing cell expansion. Endo-1,4-β-glucanase (EGase) family genes function in multiple aspects of plant growth and development. Our previous study found that PtrCel9A6, a po...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-018-2851-8
更新日期:2018-05-01 00:00:00
abstract::Light-grown dwarf peas were disbudded except for a single lateral bud, then transferred to darkness at 24° C. During the dark period the seedlings were irradiated daily for 5 or 7 min with R or FR. The buds exposed to R developed into shoots faster than those irradiated with FR. The R effect was FR reversible, and the...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387631
更新日期:1971-06-01 00:00:00
abstract::The recent introduction of (31)P nuclear magnetic resonance spectroscopy offers a new approach to the problem of obtaining a simultaneous and direct evaluation of both the cytoplasmic and vacuolar pH in higher plant cells (J. K. M. Roberts, P.M. Ray, N. Waderlardetzky and O. Sardetzky, 1980, Nature 283, 870-872; 1981,...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392784
更新日期:1982-01-01 00:00:00
abstract::Two lectins were purified by affinity chromatography from mature peanut (Arachis hypogaea L.) nodules, and compared with the previously characterised seed lectin of this plant. One of the nodule lectins was similar to the seed lectin in its molecular weight and amino-acid composition and ability to bind derivatives of...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392475
更新日期:1988-11-01 00:00:00
abstract::Flavonoids are predominantly found as glycosides in plants. The glycosylation of flavonoids is mediated by uridine diphosphate-dependent glycosyltransferases (UGT). UGTs attach various sugars, including arabinose, glucose, galactose, xylose, and glucuronic acid, to flavonoid aglycones. Two UGTs isolated from Arabidops...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-013-1922-0
更新日期:2013-10-01 00:00:00
abstract::The aim of this work was to test the hypothesis that endogenous ascorbate, released into the apoplast by membrane permeabilisation early in fruit ripening, could promote the solubilisation and depolymerisation of polysaccharides, and thus contribute to fruit softening. In vitro, ascorbate (1 mM), especially in the pre...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-003-1061-0
更新日期:2003-10-01 00:00:00
abstract::1. The retarding effect of (2-chloroethyl)trimethylammonium chloride (CCC) on germination of kale seeds is reduced and overcome by either kinetin or gibberellic acid (GA). 2. Coumarin inhibition of germination is reduced by kinetin but not by GA. 3. Germination of seeds treated with coumarin in combination with CCC is...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386756
更新日期:1966-09-01 00:00:00
abstract::Some cultured plant cells are able to acquire tolerance to various stresses when they are cultured under suitably controlled conditions. Induction of a high level of desiccation tolerance in suspension-cultured cells of the liverwort Marchantia polymorpha was examined for studying the mechanisms of desiccation toleran...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-010-1101-5
更新日期:2010-03-01 00:00:00
abstract::Extracts of sycamore cambial tissue convert UDP-glucose into UDP-glucuronic acid, and the latter into UDP-xylose and UDP-rhamnose. None of the corresponding galactose series of monosaccharides was formed indicating the absence of epimerases, postulated as an important feature of differentiation. UDP-glucose is formed ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386702
更新日期:1972-12-01 00:00:00
abstract::A plant 135-kDa actin-bundling protein (P-135-ABP) isolated from pollen tubes of Lilium longiflorum (Thunb.) binds stoichiometrically to F-actin filaments and bundles them in vitro (E. Yokota et al., 1998, Plant Physiol. 116: 1421-1429). To further understand the mechanism of actin-filament bundle formation by P-135-A...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250050631
更新日期:1999-08-12 00:00:00
abstract::Primary roots of maize (Zea mays L.) and pea (Pisum sativum L.) exhibit strong positive gravitropism. In both species, gravistimulation induces polar movement of calcium across the root tip from the upper side to the lower side. Roots of onion (Allium cepa L.) are not responsive to gravity and gravistimulation induc...
journal_title:Planta
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::Sporangiophores of Phycomyces blakesleeanus that are gravitropically stimulated by inclining them relative to the earth's gravitational vector obey the sine law for inclination angles between 0 degrees and 150 degrees. The quantitative relation between gravitropism and phototropism was analyzed for sporangiophores tha...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-001-0705-1
更新日期:2002-04-01 00:00:00
abstract::A mutant line, RPr79/2, of barley (Hordeum vulgare L. cv. Maris Mink) has been isolated that has an apparent defect in photorespiratory nitrogen metabolism. The metabolism of (14)C-labelled glutamine, glutamate and 2-oxoglutarate indicates that the mutant has a greatly reduced ability to synthesise glutamate, especial...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392356
更新日期:1986-09-01 00:00:00
abstract::Cutin synthesis of Clivia miniata Reg. was studied by using intact leaves. Tritium-labelled hexadecanoic acid was used as precursor and was administered as droplets of micellar solutions to the upper surface of expanding leaves. Radiolabel was incorporated rapidly. Within 2 h, up to 10% of the label administered had b...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00395405
更新日期:1983-06-01 00:00:00
abstract::Exudate was collected fromRicinus communis L. cotyledons after cutting the hypocotyl. It contained high levels of sucrose and potassium, a low level of calcium, and a pH of approx. 7.5. After application of [(14)C] sucrose to the cotyledons, radioactivity could be recovered from the exudate, indicating that the exudat...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00959524
更新日期:1988-06-01 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::The permeability of biological membranes to boric acid was investigated using the giant internodal cells of the charophyte alga Chara corallina (Klein ex Will. Esk. R.D. Wood). The advantage of this system is that it is possible to distinguish between membrane transport of boron (B) and complexing of B by plant cell w...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250000484
更新日期:2001-05-01 00:00:00
abstract::Incorporation of [(14)C]uridine into ribosomal RNA and ribosomal RNA precursor fractions was studied in isolated wheat embryos and in embryos remaining within the intact grains during germination. In isolated embryos, radioactive 25S and 18S as well as 31S RNA species appeared already within the first 3 h of germinati...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00384191
更新日期:1977-01-01 00:00:00
abstract::As seen in the scanning electron microscope the surface wax of leaves of Phormium tenax L. consists of vertical, plate-like crystals. These increase in size and number and undergo a change in form during development. The abaxial surface has a dense covering of wax crystals, but none are present on the ridges over vasc...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390884
更新日期:1974-06-01 00:00:00
abstract::Canavanine is an arginine analogue found in the seeds of many common legumes and is known to inhibit protein synthesis and growth in a number of organisms. Yet canavanine may comprise as much as 4% of the seed dry weight of the jackbean (Canavalia ensiformis).Canavanine is accumulated during earlier development in the...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387456
更新日期:1967-06-01 00:00:00
abstract::Homogeneous populations of developing microspores and pollen from anthers of lily (Lilium longiflorum Thumb.) and tobacco (Nicotiana tabacum L.) show a continuous production of biomass, reaching a maximum in young pollen. The rate of RNA synthesis was 460 fg · h(-1) in young binucleate cells, 138 fg · h(-1) in late bi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00197125
更新日期:1990-09-01 00:00:00
abstract:MAIN CONCLUSION:Our work strongly suggests that microRNA858 regulates anthocyanin biosynthesis in tomato by modulating the expression of two R2R3 MYB transcription factors, underscoring the importance of microRNAs in the gene regulatory network controlling specialized metabolism in plants. The biological functions of m...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-015-2305-5
更新日期:2015-07-01 00:00:00
abstract::Application of nitrate leads to an induction of nitrate reductase (NR; EC 1.6.6.1) and nitrite reductase (NIR; EC 1.7.7.1) in the cotyledons of dark-grown mustard (Sinapis alba L.) seedlings, and this induction can strongly be promoted by a far-red-light pretreatment - operating through phytochrome - prior to nitrate ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00395077
更新日期:1987-05-01 00:00:00
abstract::The genomic sequence of a rice (Oryza sativa L.) glycine-rich protein (GRP) gene, designated Osgrp-2, has been previously determined (GenBank U40708). Primer extension analysis indicated that transcription starts 47 bp upstream of the translation start codon. To gain an insight into the transcriptional regulation of t...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0934-y
更新日期:2003-03-01 00:00:00
abstract::1-Sinapoylglucose was isolated in cristalline form from mutants of Matthiola incana. In addition, 1-feruloyl-glucose and 1-p-cumaroyl-glucose were isolated and identified by paper chromatography. The molecular weights of penta-(trimethylsilyl)-1-sinapoyl-glucose and penta-(trimethylsilyl)-1-feruloyl-glucose have been ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00389041
更新日期:1973-09-01 00:00:00
abstract:MAIN CONCLUSION:This work identifies new protein phosphatases and phosphatase-related proteins targeting peroxisomes, and raises the question of a novel protein import pathway from ER to peroxisomes involving peroxisomal targeting signal type 1 (PTS1) Plant peroxisomes are essential for several processes, for example l...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-015-2439-5
更新日期:2016-03-01 00:00:00
abstract::Ferredoxin from the alga Bumilleriopsis filiformis Vischer (Xanthophyceae) is characterized by comparing some of its properties with spinach ferredoxin.It is similar to the known plant ferredoxins in the following points: a) Absorption spectrum. b) Molecular weight. c) Amino acid composition (approx. 100 amino acid re...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385204
更新日期:1970-06-01 00:00:00
abstract:MAIN CONCLUSION:Although grass pea is an environmentally successful robust legume with major traits of interest for food and nutrition security, the genetic potential of this orphan crop has long been neglected. Grass pea (Lathyrus sativus L.) is a Neolithic plant that has survived millennia of cultivation and has spre...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-018-03084-0
更新日期:2019-09-01 00:00:00