Abstract:
:Survival and cold hardiness declined gradually when cold-hardened Fredrick winter wheat (Triticum aestivum L.) was maintained at -6 degrees C for several weeks. Moisture content of crown and root tissue did not change significantly during this period. Uptake of O(2) and accumulation of (86)Rb by root tissue declined abruptly upon exposure to -6 degrees C, whereas a concomitant negative effect of freezing on these metabolic processes was not observed in crown tissue. Electron spin resonance spectroscopic analysis of microsomal membrane preparations from crown tissue revealed no evidence of gross changes in the physical properties of the bulk lipids even when seedlings were killed. The results provide biochemical evidence that seedling damage due to prolonged exposure to a mild freezing stress is due to disruption of key metabolic process in the root while cells within the crown remain viable.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Pomeroy MK,Andrews CJ,Stanley KP,Ji-Yin-Gaodoi
10.1104/pp.78.1.207subject
Has Abstractpub_date
1985-05-01 00:00:00pages
207-10issue
1eissn
0032-0889issn
1532-2548journal_volume
78pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::A technique is presented for the isolation of vacuoles from Sedum telephium L. leaves. Leaf material is digested enzymically to produce protoplasts rapidly which are partially lysed by gentle osmotic shock and the inclusion of 5 millimolar ethyleneglycol-bis (beta-aminoethyl ether)N,N'-tetraacetic acid in the wash med...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.66.3.379
更新日期:1980-09-01 00:00:00
abstract::The ability of 21 C3 and C4 monocot and dicot species to rapidly export newly fixed C in the light at both ambient and enriched CO2 levels was compared. Photosynthesis and concurrent export rates were estimated during isotopic equilibrium of the transport sugars using a steady-state 14CO2-labeling procedure. At ambien...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.117.1.207
更新日期:1998-05-01 00:00:00
abstract::Exposing hybrid poplar (Populus maximowizii x trichocarpa) plants to ozone (O3) resulted in an acceleration of the visual symptoms of senescence and a decrease in the activity and quantity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). Whole plants, crude leaf extracts, and isolated intact chloroplasts ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.101.4.1355
更新日期:1993-04-01 00:00:00
abstract::A procedure is described that can be used to minimize toxic effects of polyethylene glycol (PEG) to plants. The procedure is based on recycling nutrient solutions containing PEG-6000 through two plant cultures. Tomato plants grown in -0.3 megapascals PEG solutions used after two growth cycles exhibited minimal toxic e...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.79.2.559
更新日期:1985-10-01 00:00:00
abstract::Evidence is presented to support the suggestion that endogenous auxinlike substances participate in controlling the unbending of the hypocotyl hook of Phaseolus vulgaris L. (cv. Black Valentine). An acidic indole was detected in hook diffusates by fluorometry; triiodobenzoic acid, an inhibitor of auxin transport, prev...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.48.2.187
更新日期:1971-08-01 00:00:00
abstract::Several angiosperm plant genomes, including Arabidopsis (Arabidopsis thaliana), rice (Oryza sativa), poplar (Populus trichocarpa), and grapevine (Vitis vinifera), have been sequenced, but the lack of reference genomes in gymnosperm phyla reduces our understanding of plant evolution and restricts the potential impacts ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.111.179663
更新日期:2011-09-01 00:00:00
abstract::The level of three major polypeptides of 65, 60, and 14 kD increased in response to chilling unit accumulation in floral buds of a woody perennial, blueberry (Vaccinium, section Cynaococcus). The level of the polypeptides increased most dramatically within 300 h of chilling and decreased to the prechilling level with ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.4.1439
更新日期:1994-04-01 00:00:00
abstract::Nitrate reductase (NR)-inactivating proteins from corn roots (Wf-9 x 38-11) and rice cell suspension cultures were tested against a partially purified NR obtained from corn leaves (W64A x W182E). The corn protein was purified 921-fold and the rice protein, 1,660-fold using standard purification procedures. Approximate...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.65.1.141
更新日期:1980-01-01 00:00:00
abstract::Calreticulin (CRT) is a calcium-binding protein in the endoplasmic reticulum (ER) with an established role as a molecular chaper-one. An additional function in signal transduction, specifically in calcium distribution, is suggested but not proven. We have analyzed the expression pattern of Arabidopsis thaliana CRTs fo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.114.1.29
更新日期:1997-05-01 00:00:00
abstract::Seedlings of maize (Zea mays L. cv Pioneer 3906), hydroponically grown in the dark, were exposed to NaCl either gradually (salt acclimation) or in one step (salt shock). In the salt-acclimation treatment, root extension was indistinguishable from that of unsalinized controls for at least 6 d at concentrations up to 10...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.3.881
更新日期:1997-03-01 00:00:00
abstract::Chloroplasts have been isolated from 4- to 6-day-old corn (Zea mays) leaves capable of assimilating 45 micromoles CO(2) per milligram chlorophyll per hour. The effects of various factors such as inorganic phosphate, reducing agents, inhibitors, intermediates of the photosynthetic carbon reduction cycle, organic acids,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.49.4.607
更新日期:1972-04-01 00:00:00
abstract::Plants of a single genotype of wild strawberry, Fragaria virginiana Duchesne, were grown with or without fertilizer in high (406 microeinsteins per square meter per second) and low (80 microeinsteins per square meter per second) light. High-light leaves were thicker than low-light leaves and had greater development of...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.70.4.1044
更新日期:1982-10-01 00:00:00
abstract::Although air-filled intercellular spaces are necessary and ubiquitous in higher plants, little attention has been paid to the possible mechanisms by which these spaces are kept from being flooded. The most likely mechanism is that the living plant cell may maintain a hydrophobic monolayer on the surfaces of adjacent i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.72.4.989
更新日期:1983-08-01 00:00:00
abstract::The phytohormone cytokinin is a regulator of numerous processes in plants. In Arabidopsis (Arabidopsis thaliana), the cytokinin signal is perceived by three membrane-located receptors named ARABIDOPSIS HISTIDINE KINASE2 (AHK2), AHK3, and AHK4/CRE1. How the signal is transmitted across the membrane is an entirely unkno...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.01903
更新日期:2017-03-01 00:00:00
abstract::The question of how rotation on a horizontal axis clinostat removes plants from the influence of the gravitational stimulus is answered. It is shown that appropriate horizontal axis clinostat rotation restricts the fall of intracellular particles to a quasi-circular path such that the position of the particle remains ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.47.6.756
更新日期:1971-06-01 00:00:00
abstract::The metabolism of labeled indole-3-acetic acid (IAA-2-(14)C) was investigated in Parthenocissus tricuspidata crown gall callus tissue. After 48 hours incubation, 85 to 90% of the supplied IAA was taken up by the tissue, and of that taken up, about 45% was conjugated with five amino acids. The conjugates found were asp...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.58.5.666
更新日期:1976-11-01 00:00:00
abstract::The essentiality of roots to the short-term responses of leaf elongation to salinity was tested by removing the roots of maize (Zea mays L.) from the shoots and comparing the initial short-term response of leaf elongation to that with intact plants. Eightday-old seedlings growing in solution culture were treated with ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.95.3.965
更新日期:1991-03-01 00:00:00
abstract::A radioimmunoassay for glyceollin I, the major phytoalexin produced by soybean (Glycine max [L.] Merr.), has been developed. Antibodies were raised in rabbits against a glyceollin I-bovine serum albumin conjugate. The antisera were used to establish a radioimmunoassay for glyceollin I using [(125)I]glyceollin I as the...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.73.2.233
更新日期:1983-10-01 00:00:00
abstract::A light-dependent tyrosine kinase activity is present in soluble extracts from the cyanobacterium Prochlorothrix hollandica. The substrate of this tyrosine kinase activity is a soluble 88-kD protein that is phosphorylated when cultures of P. hollandica are adapted to high-light conditions. This phosphoprotein was iden...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.2.629
更新日期:1994-06-01 00:00:00
abstract::Isoprenoid biosynthesis in plant plastids occurs via the 1-deoxy-d-xylulose 5-phosphate (DXP) pathway. We used tobacco rattle virus (TRV) to posttranscriptionally silence the expression of the last two enzymes of this pathway, the IspG-encoded (E)-4-hydroxy-3-methylbut-2-enyl diphosphate synthase (HDS) and the IspH-en...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.038133
更新日期:2004-04-01 00:00:00
abstract::The Arabidopsis (Arabidopsis thaliana) genome contains four genes encoding putative NADP-malic enzymes (MEs; AtNADP-ME1-ME4). NADP-ME4 is localized to plastids, whereas the other three isoforms do not possess any predicted organellar targeting sequence and are therefore expected to be cytosolic. The plant NADP-MEs can...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.065953
更新日期:2005-09-01 00:00:00
abstract::The time course of abscisic acid (ABA) accumulation during water stress and of degradation following rehydration was investigated by analyzing the levels of ABA and its metabolites phaseic acid (PA) and alkalihydrolyzable conjugated ABA in excised leaf blades of Xanthium strumarium. Initial purification was by reverse...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.66.4.672
更新日期:1980-10-01 00:00:00
abstract::Meristematic tissues from rye (Secale cereale) and oat (Avena sativa) were studied in an isothermal calorimeter at -3 degrees C. When the frozen tissue was placed in the calorimeter, the pressure increased within 4 d to 25 and 9 kPa above ambient pressure in the sample vessels containing crowns of rye and oat, respect...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.122.3.861
更新日期:2000-03-01 00:00:00
abstract::To study the effect of O(2) on the photosynthetic and glycolate pathways, maize leaves were exposed to (14)CO(2) during steady-state photosynthesis in 21 or 1% O(2). At the two O(2) concentrations after a (14)CO(2) pulse (4 seconds) followed by a (12)CO(2) chase, there was a slight difference in CO(2) uptake and in th...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.66.6.1079
更新日期:1980-12-01 00:00:00
abstract::The canonical pathway for isoleucine biosynthesis in plants begins with the conversion of threonine to 2-ketobutyrate by threonine deaminase (OMR1). However, demonstration of methionine gamma-lyase (MGL) activity in Arabidopsis (Arabidopsis thaliana) suggested that production of 2-ketobutyrate from methionine can also...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.138651
更新日期:2009-09-01 00:00:00
abstract::Storage protein hydrolysis in the cotyledons of germinating mung beans (Phaseolus aureus Roxb.) was examined by histochemical techniques, and the autolytic capacity of isolated protein bodies was studied with biochemical methods. The localization of endopeptidase activity within the cotyledons was studied using an Ind...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.56.2.292
更新日期:1975-08-01 00:00:00
abstract::Plants have significantly more transcription factor (TF) families than animals and fungi, and plant TF families tend to contain more genes; these expansions are linked to adaptation to environmental stressors. Many TF family members bind to similar or identical sequence motifs, such as G-boxes (CACGTG), so it is diffi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.17.01086
更新日期:2017-10-01 00:00:00
abstract::We have studied the effects of ATP and ADP on the oxidation of malate by coupled and uncoupled mitochondria prepared from etiolated hypocotyls of mung bean (Vigna radiata L.).In coupled mitochondria, ATP (1 millimolar) increased pyruvate production and decreased oxaloacetate formation without altering the rate of oxyg...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.76.1.21
更新日期:1984-09-01 00:00:00
abstract::Superoxide dismutase was purified from pea (Pisum sativum L., cv. Wando) seeds and corn (Zea mays L., cv. Michigan 500) seedlings. The purified pea enzyme eluting as a single peak from gel exclusion chromatography columns contained the three electrophoretically distinct bands of superoxide dismutase characterizing the...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.59.2.315
更新日期:1977-02-01 00:00:00
abstract::Two photoperiodic cotton (Gossypium hirsutum L.) strains (T185 and T466) which had been empirically selected because of poor performance and two strains (T25 and T256) selected because of enhanced performance under field water stress were evaluated for stress-induced changes in their organic acids and carbohydrates. P...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.82.3.724
更新日期:1986-11-01 00:00:00