Abstract:
:We studied aquaporins in maize (Zea mays), an important crop in which numerous studies on plant water relations have been carried out. A maize cDNA, ZmTIP1, was isolated by reverse transcription-coupled PCR using conserved motifs from plant aquaporins. The derived amino acid sequence of ZmTIP1 shows 76% sequence identity with the tonoplast aquaporin gamma-TIP (tonoplast intrinsic protein) from Arabidopsis. Expression of ZmTIP1 in Xenopus laevis oocytes showed that it increased the osmotic water permeability of oocytes 5-fold; this water transport was inhibited by mercuric chloride. A cross-reacting antiserum made against bean alpha-TIP was used for immunocytochemical localization of ZmTIP1. These results indicate that this and/or other aquaporins is abundantly present in the small vacuoles of meristematic cells. Northern analysis demonstrated that ZmTIP1 is expressed in all plant organs. In situ hybridization showed a high ZmTIP1 expression in meristems and zones of cell enlargement: tips of primary and lateral roots, leaf primordia, and male and female inflorescence meristems. The high ZmTIP1 expression in meristems and expanding cells suggests that ZmTIP1 is needed (a) for vacuole biogenesis and (b) to support the rapid influx of water into vacuoles during cell expansion.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Chaumont F,Barrieu F,Herman EM,Chrispeels MJdoi
10.1104/pp.117.4.1143subject
Has Abstractpub_date
1998-08-01 00:00:00pages
1143-52issue
4eissn
0032-0889issn
1532-2548journal_volume
117pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::A series of growth room experiments was carried out aiming to establish the role of abscisic acid on dormancy of Salix viminalis L. The inhibitor content and abscisic acid levels of extracts from roots, sap, leaves, and apical tissues of willow were measured using biological assay and gas-liquid chromatography.No evid...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.63.4.774
更新日期:1979-04-01 00:00:00
abstract::Gas exchange of Eurasian watermilfoil (Myriophyllum spicatum L.) indicated a near-zero CO(2) compensation point and a high temperature optimum for photosynthesis. These properties are characteristic of plants fixing CO(2) by a beta-carboxylation mechanism. Operation of the Calvin cycle was shown and no evidence for be...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.50.1.149
更新日期:1972-07-01 00:00:00
abstract::The white petals of chrysanthemum (Chrysanthemum morifolium Ramat.) are believed to contain a factor that inhibits the accumulation of carotenoids. To find this factor, we performed polymerase chain reaction-Select subtraction screening and obtained a clone expressed differentially in white and yellow petals. The dedu...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.087130
更新日期:2006-11-01 00:00:00
abstract::The fossil record and models of atmospheric concentrations of O2 and CO2 suggest that past shifts in plant ecological dominance often coincided with dramatic changes in Earth's atmospheric composition. This study tested the effects of past changes in atmospheric composition on the photosynthetic physiology of a limite...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.19.00749
更新日期:2019-11-01 00:00:00
abstract::The specific activity of phosphoenolpyruvate (PEP) measured at a saturating level of substrate diminishes as the enzyme is diluted at about the same rate that specific light scattering by the diluted enzyme decreases. The presence of PEP in the assay causes an increase in activity with increasing dilution. This is acc...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.99.2.755
更新日期:1992-06-01 00:00:00
abstract::The grass subfamily Pooideae dominates the grass floras in cold temperate regions and has evolved complex physiological adaptations to cope with extreme environmental conditions like frost, winter, and seasonality. One such adaptation is cold acclimation, wherein plants increase their frost tolerance in response to gr...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.01448
更新日期:2019-05-01 00:00:00
abstract::The Dunaliella salina photosynthetic apparatus organization and function was investigated in wild type (WT) and a mutant (zea1) lacking all beta,beta-epoxycarotenoids derived from zeaxanthin (Z). The zea1 mutant lacked antheraxanthin, violaxanthin, and neoxanthin from its thylakoid membranes but constitutively accumul...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.019620
更新日期:2003-05-01 00:00:00
abstract::A previously isolated rice (Oryza sativa) rbcS gene was further characterized. This analysis revealed specific sequences in the 5' regulatory region of the rice rbcS gene that are conserved in rbcS genes of other monocotyledonous species. In transgenic rice plants, we examined the expression of the beta-glucuronidase ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.3.991
更新日期:1993-07-01 00:00:00
abstract::Under controlled environment and/or field conditions, vegetative growth (height, internode length, leaf area, shoot dry weight, grain yield) was greater in an F(1) maize hybrid than in either parental inbred. Endogenous gibberellin (GA)-like substances in apical meristem cylinders were also higher in the hybrid than i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.71.3.639
更新日期:1983-03-01 00:00:00
abstract::The plant hormone jasmonate (JA) promotes resistance to biotic stress by stimulating the degradation of JASMONATE ZIM-DOMAIN (JAZ) proteins, which relieves repression on MYC transcription factors that execute defense programs. JA-triggered depletion of JAZ proteins in Arabidopsis (Arabidopsis thaliana) is also associa...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.19.01335
更新日期:2020-06-01 00:00:00
abstract::Sucrose synthase (SUS) is phosphorylated on a major, amino-terminal site located at Ser-15 (S15) in the maize (Zea mays) SUS1 protein. Site- and phospho-specific antibodies against a phosphorylated S15 (pS15) peptide allowed direct analysis of S15 phosphorylation in relation to membrane association. Immunoblots of the...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.036780
更新日期:2004-04-01 00:00:00
abstract::In this article, we demonstrate the connection between intracellular iron storage and oxidative stress response in cyanobacteria. Iron is essential for the survival of all organisms. However, the redox properties that make iron a valuable cofactor also lead to oxidative interactions, resulting in the formation of harm...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.141853
更新日期:2009-08-01 00:00:00
abstract::Maize (Zea mays) leaves develop basipetally (tip to base); the upper blade emerges from the shoot apical meristem (SAM) before the expansion of the lower sheath. Founder cells, leaf initials located in the periphery of the SAM, are distinguished from the SAM proper by the differential accumulation of KNOX proteins. KN...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.026880
更新日期:2003-10-01 00:00:00
abstract::Two parental lines of Upland cotton (Gossypium hirsutum L.) plus their reciprocal F(1), F(2), and backcross populations were field-tested for environmental and genetic components of leaf diffusive resistance. Leaf resistance was measured with a diffusion porometer three times each day during 6 days in August. A large,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.59.3.354
更新日期:1977-03-01 00:00:00
abstract::Root branching is critical for plants to secure anchorage and ensure the supply of water, minerals, and nutrients. To date, research on root branching has focused on lateral root development in young seedlings. However, many other programs of postembryonic root organogenesis exist in angiosperms. In cereal crops, the ...
journal_title:Plant physiology
pub_type: 杂志文章,评审
doi:10.1104/pp.114.245423
更新日期:2014-10-01 00:00:00
abstract::The resistive and reactive components of electrical impedance were measured for birdsfoot trefoil (Lotus corniculatus L.) stems at freezing temperatures to -8 degrees C. As temperature decreased the specific resistance at frequencies between 49 hertz and 1.11 megahertz of stems from cold acclimated plants increased mo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.86.1.275
更新日期:1988-01-01 00:00:00
abstract::Relative water content, solute concentrations, and osmolality were determined in the water storage tissue (hydrenchyma) and the assimilatory tissue (chlorenchyma) of the succulent leaves of Peperomia magnoliaefolia (Jac) (Piperaceae) during slow desiccation. Relative water loss was significantly greater for the hydren...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.83.1.190
更新日期:1987-01-01 00:00:00
abstract::The sugars in the endosperm of a developing seed have many potential roles, including the supply of carbon to the developing embryo and controlling gene expression in it. Our understanding of their metabolism is, however, fragmentary and is confined to a very few species (especially Vicia spp.). To develop a quantitat...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.010868
更新日期:2003-01-01 00:00:00
abstract::The immediate short term effects on some physiological processes and the long term effects on morphology and reproductive development of root- and shoot-chilled soybeans (Glycine max L. cv Ransom) were studied. Roots or shoots of 16- or 17-day-old plants were chilled at 10 degrees C for one week, and then rewarmed to ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.73.3.778
更新日期:1983-11-01 00:00:00
abstract::Maize plants (Zea mays) attacked by caterpillars release a mixture of odorous compounds that attract parasitic wasps, natural enemies of the herbivores. We assessed the genetic variability of these induced volatile emissions among 31 maize inbred lines representing a broad range of genetic diversity used by breeders i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.039891
更新日期:2004-08-01 00:00:00
abstract::To study the role of the plastidial alpha-glucan phosphorylase in starch metabolism in the leaves of Arabidopsis, two independent mutant lines containing T-DNA insertions within the phosphorylase gene were identified. Both insertions eliminate the activity of the plastidial alpha-glucan phosphorylase. Measurement of o...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.032631
更新日期:2004-06-01 00:00:00
abstract::Vacuolar sorting receptors, BP80/VSRs, play a critical role in vacuolar trafficking of soluble proteins in plant cells. However, the mechanism of action of BP80 is not well understood. Here, we investigate the action mechanism of AtVSR1, a member of BP80 proteins in Arabidopsis (Arabidopsis thaliana), in vacuolar traf...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.159814
更新日期:2010-09-01 00:00:00
abstract::A method has been devised for loading chloroplast inner envelope vesicles prepared from pea (Pisum sativum L. var Progress No. 9) or spinach (Spinacia oleracea L.) with 8-hydroxypyrene-1,3,6-trisulfonate (pyranine), a membrane impermeant, fluorescent pH indicator. Two known proton-linked transport activities of the in...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.86.4.999
更新日期:1988-04-01 00:00:00
abstract::Stomata in epidermal strips of Vicia faba opened in light and closed in darkness when floated on dilute K(+) solutions. Opening and closing, respectively, paralleled the fluxes of labeled K(+) into and out of the strips. The gain and loss of K(+) by the strips were shown by colbaltinitrite stain to be centered at guar...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.46.3.483
更新日期:1970-09-01 00:00:00
abstract::We identified a T-DNA-generated mutation in the chaperonin-60alpha gene of Arabidopsis that produces a defect in embryo development. The mutation, termed schlepperless (slp), causes retardation of embryo development before the heart stage, even though embryo morphology remains normal. Beyond the heart stage, the slp m...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.126.2.717
更新日期:2001-06-01 00:00:00
abstract::Previously, we reported that inorganic phosphate (Pi) deprivation of Brassica nigra suspension cells or seedlings leads to a progressive increase in the alpha: beta-subunit ratio of the inorganic pyrophosphate (PPi)-dependent phosphofructokinase (PFP) and that this coincides with a marked enhancement in the enzyme's a...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.1.343
更新日期:1996-09-01 00:00:00
abstract::Plant roots show a particularly high variation in their morphological response to different nutrient deficiencies. Although such changes often determine the nutrient efficiency or stress tolerance of plants, it is surprising that a comprehensive and comparative analysis of root morphological responses to different nut...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.218453
更新日期:2013-09-01 00:00:00
abstract::The Golgi apparatus consists of stacked cisternae filled with enzymes that facilitate the sequential and highly controlled modification of glycans from proteins that transit through the organelle. Although the glycan processing pathways have been extensively studied, the underlying mechanisms that concentrate Golgi-re...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.19.00310
更新日期:2019-06-01 00:00:00
abstract::DNA coding for the enzymatically active subunit A of diphtheria toxin was placed under the control of the cauliflower mosaic virus 35S promoter and the Agrobacterium left transfer-DNA gene 7 polyadenylation signal. Agrobacteria carrying a binary plant vector with the chimeric diphtheria toxin A gene had very low trans...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.95.3.687
更新日期:1991-03-01 00:00:00
abstract::The O(2) concentration in intact and osmotically disrupted isolated spinach (Spinacia oleracea, L.) chloroplasts during photosynthesis was estimated. The chloroplasts were allowed to reduce 3-phosphoglycerate, CO(2), or ferricyanide in light until the rate of O(2) production was linear. When the light was turned off O...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.60.6.903
更新日期:1977-12-01 00:00:00