Abstract:
:Isolated cells obtained by enzymic digestion of young primary leaves of cold-hardened, dark-grown Kharkov winter wheat (Triticum aestivum L.) were exposed to various low temperature stresses. The initial uptake of (86)Rb was generally decreased by increasing concentrations of Ca(2+), but after longer periods of incubation, the inhibiting effect of high Ca(2+) levels diminished. Viability of isolated cells suspended in water declined rapidly when ice encased at -1 degrees C, while in the presence of 10 millimolar Ca(2+) viability declined only gradually over a 5-week period. Ice encasement markedly reduced (86)Rb uptake prior to a significant decline in cell viability or increased ion efflux. Cell damage increased progressively when the icing temperature was reduced from -1 to -2 and -3 degrees C, but the presence of Ca(2+) in the suspending medium reduced injury. Cell viability and ion uptake were reduced to a greater extent following slow cooling than after rapid cooling to subfreezing temperatures ranging from -10 to -30 degrees C. The results from this study support the view that an early change in cellular properties due to prolonged ice encasement at -1 degrees C involves the ion transport system, whereas cooling to lower subfreezing temperatures for only a few hours results in more general membrane damage, including loss of semipermeability of the plasma membrane.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Pomeroy MK,Andrews CJdoi
10.1104/pp.78.3.484subject
Has Abstractpub_date
1985-07-01 00:00:00pages
484-8issue
3eissn
0032-0889issn
1532-2548journal_volume
78pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::Barley (Hordeum vulgare L. Himalaya) mutants with altered grain morphology were isolated to investigate whether defects in grain development, possibly involving gibberellins (GAs) and abscisic acid, would lead to altered patterns of [alpha]-amylase gene expression. Following treatment with sodium azide, 75 mutants, ty...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.114.1.203
更新日期:1997-05-01 00:00:00
abstract::In flowering plants, the two sperm cells are embedded within the cytoplasm of the growing pollen tube and as such are passively transported to the embryo sac, wherein double fertilization occurs upon their release. Understanding the mechanisms and conditions by which male gametes mature and take part in fertilization ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.125229
更新日期:2008-10-01 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
abstract::Although Arabidopsis is well established as the premiere model species in plant biology, rice (Oryza sativa) is moving up fast as the second-best model organism. In addition to the availability of large sets of genetic, molecular, and genomic resources, two features make rice attractive as a model species: it represen...
journal_title:Plant physiology
pub_type: 杂志文章,评审
doi:10.1104/pp.104.040170
更新日期:2004-06-01 00:00:00
abstract::Over recent years, a number of initiatives have proposed standard reporting guidelines for functional genomics experiments. Associated with these are data models that may be used as the basis of the design of software tools that store and transmit experiment data in standard formats. Central to the success of such dat...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.058875
更新日期:2005-05-01 00:00:00
abstract::Solid-state nuclear magnetic resonance relaxation experiments were used to study the rigidity and spatial proximity of polymers in sugar beet (Beta vulgaris) cell walls. Proton T1rho decay and cross-polarization patterns were consistent with the presence of rigid, crystalline cellulose microfibrils with a diameter of ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.119.4.1315
更新日期:1999-04-01 00:00:00
abstract::The low temperature exotherms (LTE) of 1-year-old twigs of Haralson apple (Malus pumila Mill.), shagbark hickory (Carya ovata [Mill.] K. Koch), green ash (Fraxinus pennsylvanica Marsh), honey locust (Gleditsia triacanthos L.), American chestnut (Castanea dentata [Marsh] Borkh.), and red oak (Quercus rubra L.) were det...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.66.1.40
更新日期:1980-07-01 00:00:00
abstract::DEAD-box RNA helicases (DBRHs) modulate RNA secondary structure, allowing RNA molecules to adopt the conformations required for interaction with their target proteins. RH50 is a chloroplast-located DBRH that colocalizes and is coexpressed with GUN1, a central factor in chloroplast-to-nucleus signaling. When combined w...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.17.01545
更新日期:2018-01-01 00:00:00
abstract::A cDNA clone encoding rice (Oryza sativa L.) cytosolic triosephosphate isomerase (TPI), an important glycolytic enzyme, was isolated and characterized. The clone (pRTPI-6) contains an open reading frame of 759 base pairs, encoding a polypeptide chain of 253 amino acid residues (M(r) 27,060). The identity of this clone...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.101.2.683
更新日期:1993-02-01 00:00:00
abstract::Inoculation of 2-day-old cowpea (Vigna unguiculata [L.] Walp.) seedlings with Rhizobium fredii USDA257 results in proficient nodulation of the tap root. The most abundant nodulation occurs in a region roughly corresponding to the position of the root tip at the time of inoculation. We have examined plant gene expressi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.92.4.946
更新日期:1990-04-01 00:00:00
abstract::Cytidine deoxyriboside (Cdr), uridine deoxyriboside (Udr), and guanosine deoxyriboside (Gdr), induce quantitative bleaching of the fronds of Lemna minor (duckweed) during growth in continuous light on photoheterotrophic medium. Cdr-induced bleaching is not accompanied by a reduction in frond multiplication rate, but U...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.61.6.989
更新日期:1978-06-01 00:00:00
abstract::p-Hydroxybenzoic acid (pHBA) is the major monomer in liquid crystal polymers. In this study, the Escherichia coli ubiC gene that codes for chorismate pyruvate-lyase (CPL) was integrated into the tobacco (Nicotiana tabacum) chloroplast genome under the control of the light-regulated psbA 5' untranslated region. CPL cat...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.050054
更新日期:2004-12-01 00:00:00
abstract::Phosphorus (P) is a crucial nutrient for plant growth, but its availability to roots is limited in soil. Arbuscular mycorrhizal (AM) symbiosis is a promising strategy for improving plant P acquisition. However, P fertilizer reduces fungal colonization (P inhibition) and compromises mycorrhizal P uptake, warranting stu...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00127
更新日期:2016-05-01 00:00:00
abstract::Glyceraldehyde 3-phosphate dehydrogenases (EC 1.2.1.12 and 1.2.1.13) have been purified from the seed, root, etiolated, and green shoot of peas (Pisum sativum). These enzymes are tetramers of 140,000 daltons, with subunits of 35,000 daltons. The enzymes differ in isoelectric point. The seed enzyme has a pI of 5.1, and...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.54.3.312
更新日期:1974-09-01 00:00:00
abstract::Comparative studies of chlorophyll a fluorescence, measured with a pulse amplitude modulated fluorometer, and of the pigment composition of leaves, suggest a specific role of zeaxanthin, a carotenoid formed in the xanthophyll cycle, in protecting the photosynthetic apparatus against the adverse effects of excessive li...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.84.2.218
更新日期:1987-06-01 00:00:00
abstract::Plants employ diverse responses mediated by phytohormones to defend themselves against pathogens and herbivores. Adapted pathogens and herbivores often manipulate these responses to their benefit. Previously, we demonstrated that Turnip mosaic virus (TuMV) infection suppresses callose deposition, an important plant de...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00332
更新日期:2015-09-01 00:00:00
abstract::Photosynthetic (14)CO(2) fixation, [(14)C]glycolate formation, and the decarboxylation of [1-(14)C]glycolate and [1-(14)C]glycine by leaf mesophyll protoplasts isolated from isogenic diploid and tetraploid cultivars of ryegrass (Lolium perenne L.) were examined. The per cent O(2) inhibition of photosynthesis in protop...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.65.3.489
更新日期:1980-03-01 00:00:00
abstract::Oxygen deprivation induces a wide variety of genes, but the most extensively studied are those encoding enzymes of the glycolytic pathway. Lactate dehydrogenase (LDH, EC 1.1.1.27) activity increases up to 3.5-fold in maize (Zea mays L.) roots during several days of hypoxic induction. This increase in activity is accom...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.3.1015
更新日期:1996-11-01 00:00:00
abstract::Plastocyanin and chloroplast coupling factor 1 (CF(1)) are released from spinach (Spinacia oleracea L.) thylakoids during a slow freezethaw cycle. CF(1) addition increases the proton uptake of thylakoids previously frozen in sucrose concentrations of 15 mm to 100 mm. Addition of CF(1) and plastocyanin restores the pro...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.57.5.673
更新日期:1976-05-01 00:00:00
abstract::By comparing growth under five different temperature and irradiance regimes (20[deg]C and 800, 250, and 50[mu]mol m-2 s-1 and 5[deg]C and 250 and 50 [mu]mul m-2 s-1), we have examined the effects of light, temperature, and the relative reduction state of photosystem II on plant morphology, freezing tolerance (lethal t...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.114.2.467
更新日期:1997-06-01 00:00:00
abstract::It was previously reported that the hypernodulating soybean (Glycine max [L.] Merr.) mutants, derived from the cultivar Williams, had higher root concentration of isoflavonoid compounds (daidzein, genistein, and coumestrol) than did Williams at 9 to 12 days after inoculation with Bradyrhizobium japonicum. These compou...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.96.4.1277
更新日期:1991-08-01 00:00:00
abstract::Peroxisomes are single membrane-delimited subcellular organelles that carry out numerous vital metabolic reactions in nearly all eukaryotes. Peroxisomes alter their morphology, abundance, and enzymatic constituents in response to environmental cues, yet little is known about the underlying mechanisms. In this work, we...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.107.113555
更新日期:2008-03-01 00:00:00
abstract::Small RAC/ROP-family G proteins regulate development and stress responses in plants. Transient overexpression and RNA interference experiments suggested that the barley (Hordeum vulgare) RAC/ROP protein RACB is involved in susceptibility to the powdery mildew fungus Blumeria graminis f. sp. hordei. We created transgen...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.066613
更新日期:2005-09-01 00:00:00
abstract::The flavoprotein (R)-(+)-mandelonitrile lyase (MDL; EC 4.1.2.10) plays a key role in cyanogenesis in rosaceous stone fruits. An MDL gene (mdl3) and its corresponding cDNA (MDL3) were isolated from black cherry (Prunus serotina) and characterized. The mdl3 gene contains 2292 bp of the 5' flanking region, the entire cod...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.115.4.1359
更新日期:1997-12-01 00:00:00
abstract::Soybean (Glycine max L. Merr.) germplasm, isogenic except for loci controlling male sterility (ms(1)), was utilized to study the effects of reproductive development on certain aspects of photosynthesis. Plants were sampled at various times between flowering (77 days after transplanting) and maturity (147 days after tr...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.84.4.1357
更新日期:1987-08-01 00:00:00
abstract::Thermal conductivity coefficients have been determined for longitudinal and transverse flow in 4 varieties of fresh Citrus wood using steady state-methods. Equations were developed from which thermal conductivity could be rapidly estimated from moisture content or electrical conductivity. The heat balance of large and...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.42.8.1025
更新日期:1967-08-01 00:00:00
abstract::The actin cytoskeleton has been implicated in plant defenses against pathogenic fungi and oomycetes with limited, indirect evidence. To date, there are no reports linking actin with resistance against phytopathogenic bacteria. The dynamic behavior of actin filaments is regulated by a diverse array of actin-binding pro...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.137604
更新日期:2009-06-01 00:00:00
abstract::Light stimulated the activation of ribulosebisphosphate carboxylase/oxygenase (rubisco) in a buffered lysed chloroplast system in the presence of saturating concentrations of ATP. This indicates a role for light in the rubisco activase activation system in addition to the previously identified requirement for the synt...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.92.1.110
更新日期:1990-01-01 00:00:00
abstract::Bicarbonate uptake by isolated chloroplast envelope membranes and intact chloroplasts of spinach (Spinacia oleracea L. var. Viroflay) in darkness exhibited a similar dependency upon temperature, pH, time, and concentrations of isolated or attached envelope membranes. This similarity in uptake properties demonstrates t...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.54.4.520
更新日期:1974-10-01 00:00:00
abstract::To survive in various conditions of CO2 availability, Chlamydomonas reinhardtii shows adaptive changes, such as induction of a CO2-concentrating mechanism, changes in cell organization, and induction of several genes, including a periplasmic carbonic anhydrase (pCA1) encoded by Cah1. Among a collection of insertionall...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.120.3.757
更新日期:1999-07-01 00:00:00