Units of freezing of deep supercooled water in woody xylem.

abstract：:The combined action of the inhibitors antimycin A and cyanide with benzohydroxamic acid indicates the presence of a cyanide-resistant pathway of respiration in chick pea (Cicer arietinum L.) seeds. The appearance of this pathway takes place during germination. During the first 12 hours of germination, the respiration ...

journal_title：Plant physiology

authors： Burguillo Pde L,Nicolás G

更新日期：1977-10-01 00:00:00

abstract：:Treatment of tobacco (Nicotiana tabacum) cell-suspension cultures with cryptogein, an elicitin protein from Phytophthora cryptogea, resulted in the release of a factor(s) that diffused through a 1000-D cutoff dialysis membrane and was capable of inducing sesquiterpene cyclase enzyme activity (a key phytoalexin biosynt...

journal_title：Plant physiology

authors： Chappell J,Levine A,Tenhaken R,Lusso M,Lamb C

更新日期：1997-02-01 00:00:00

abstract：:We have characterized the gravitropic response of inflorescence stems in Arabidopsis thaliana. When the inflorescence stems were placed horizontally, they curved upward about 90 degrees within 90 min in darkness at 23 degrees C, exhibiting strong negative gravitropism. Decapitated stem segments (without all flowers, f...

journal_title：Plant physiology

authors： Fukaki H,Fujisawa H,Tasaka M

更新日期：1996-03-01 00:00:00

abstract：:Apical segments of roots of Zea mays L. cv. Orla and cv. Anjou show a strong georeaction during 7 hours geostimulation. This is abolished by detipping the segments and restored by replacing the tips upon the apical cut surfaces. After exodiffusion of endogenous indoleacetic acid (IAA) the retipped segments showed a si...

journal_title：Plant physiology

authors： Pilet PE

更新日期：1981-05-01 00:00:00

abstract：:Irradiation of the gametophytes of Pteridium aquilinum with blue light led to a nearly 5-fold increase in the amino acid-incorporating activity of isolated chloroplasts. The blue light effect was not due to increased synthesis of ATP or other energy donors by the chloroplasts but was probably related to an increased p...

journal_title：Plant physiology

authors： Raghavan V,Demaggio AE

更新日期：1971-07-01 00:00:00

abstract：:The enzyme 3'-AMP nucleotidase was purified 2,500- to 5,000-fold from extracts of an acetone powder of wheat (Triticum aestivum) embryonic axes germinated for 40 hours. Sodium dodecyl sulfate acrylamide gel electrophoresis and chromatography on Biogel-P100 indicate that the enzyme is monomeric with a molecular weight ...

journal_title：Plant physiology

authors： Zhu ZP,Marsh L,Marcus A

更新日期：1983-02-01 00:00:00

abstract：:The sensitivity of lettuce (Lactuca sativa L. cv Grand Rapids) seeds to red light was reduced by NaCl concentrations which had no effect upon the germination of continuously illuminated seeds. The germination capacity of the seeds was fully restored by increased red light exposures. Indirect evidence indicates that Na...

journal_title：Plant physiology

authors： Scorer KN,Epel BL,Waisel Y

更新日期：1985-09-01 00:00:00

abstract：:Germination potential in nondormant, upper cocklebur (Xanthium pensylvanicum Wallr.) seeds, which were incapable of germinating under constant temperatures below 25 C in air, was increased by exposure to diurnally alternating temperatures. The cocklebur seeds failed to respond to the temperature fluctuations in the be...

journal_title：Plant physiology

authors： Esashi Y,Tsukada Y

更新日期：1978-03-01 00:00:00

abstract：:Western blots of soluble protein from wheat, rice, and corn showed that ADPglucose pyrophosphorylase subunits have a size of 50 kilodaltons from endosperm tissue and 43 and 46 kilodaltons from leaf. Antisera to ADPglucose pyrophosphorylase precipitated in vitro translation products of 73 and 76 kilodaltons when leaf p...

journal_title：Plant physiology

authors： Krishnan HB,Reeves CD,Okita TW

更新日期：1986-06-01 00:00:00

abstract：:Though Helminthosporium maydis race T (HmT) toxin decreased active Ca(2+) uptake into mitochondria isolated from susceptible (T) but not resistant (N) corn (Kimber, Sze, 1984 Plant Physiol 74: 804-809 the mode of toxin action is not understood. This study shows that HmT toxin or A23187 (a Ca(2+) ionophore) dissipated ...

journal_title：Plant physiology

authors： Holden MJ,Sze H

更新日期：1984-05-01 00:00:00

abstract：:Exudate was collected periodically from the root systems of detopped tobacco plants. Volume, cations, and (42)K or (86)Rb transfer were measured. According to measurements of K by (42)K and by the flame photometer, when concentrations of KCl and KNO(3) were lower than 10(-2)m, the K in the exudate came mostly from a p...

journal_title：Plant physiology

authors： Wallace A,Ashcroft RT,Lunt OR

更新日期：1967-02-01 00:00:00

abstract：:NAD-dependent glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a ubiquitous enzyme involved in the glycolytic pathway. It has been widely demonstrated that mammalian GAPDH, in addition to its role in glycolysis, fulfills alternative functions mainly linked to its susceptibility to oxidative posttranslational modifi...

journal_title：Plant physiology

authors： Vescovi M,Zaffagnini M,Festa M,Trost P,Lo Schiavo F,Costa A

更新日期：2013-05-01 00:00:00

abstract：:The present report shows that the effect of red and far red light on the synthesis of phenylalanine ammonia-lyase can be ascribed to the action of phytochrome Pfr. This is true not only for short term irradiation but also for the action of continuous far red light. In the latter case, the model worked out by Hartmann ...

journal_title：Plant physiology

authors： Schopfer P,Mohr H

更新日期：1972-01-01 00:00:00

abstract：:The intracellular distribution of enzymes capable of catalyzing the reactions from oxaloacetate to sucrose in germinating castor bean endosperm has been studied by sucrose density gradient centrifugation. One set of glycolytic enzyme activities was detected in the plastids and another in the cytosol. The percentages o...

journal_title：Plant physiology

authors： Nishimura M,Beevers H

更新日期：1979-07-01 00:00:00

abstract：:We investigated the synthesis and turnover of cell wall polysaccharides of the flax (Linum usitatissimum L.) plant during development of the phloem fibers. One-month-old flax plants were exposed to a 40-min pulse with 14CO2 followed by 8-h, 24-h, and 1-month periods of chase with ambient CO2, and radioactivity in cell...

journal_title：Plant physiology

authors： Gorshkova TA,Chemikosova SB,Lozovaya VV,Carpita NC

更新日期：1997-06-01 00:00:00

abstract：:The enzyme polyphenol oxidase (PPO) catalyzes the oxidation of phenolic compounds into highly reactive quinones. Polymerization of PPO-derived quinones causes the postharvest browning of cut or bruised fruit, but the native physiological functions of PPOs in undamaged, intact plant cells are not well understood. Walnu...

journal_title：Plant physiology

authors： Araji S,Grammer TA,Gertzen R,Anderson SD,Mikulic-Petkovsek M,Veberic R,Phu ML,Solar A,Leslie CA,Dandekar AM,Escobar MA

更新日期：2014-03-01 00:00:00

abstract：:An enzyme activity, found for the first time in plants, mainly located in the 22,000g supernatant of the crude extract of sprout apices of Helianthus tuberosus L. cv OB1 tubers, is able in vitro to covalently bind polyamines to endogenous substrates of different molecular weights. The major assay parameters, such as p...

journal_title：Plant physiology

authors： Serafini-Fracassini D,Del Duca S,D'Orazi D

更新日期：1988-07-01 00:00:00

abstract：:Lettuce (Lactuca sativa) seeds var. Grand Rapids could be maintained many weeks in the dark without germination. Following illumination with white light, a gradual increase in polyribosome population up to the time of germination was demonstrated by sucrose gradient centrifugation. Polysomes could not be detected in i...

journal_title：Plant physiology

authors： Mitchell RC,Villiers TA

更新日期：1972-12-01 00:00:00

abstract：:Endogenous factors which determine the photosynthetic capacity of the leaf were studied in the fully expanded, primary leaves of young seedings of bean (cv. Bulgarian). Following removal of the shoot above the primary leaf node and excision of all axillary buds, the primary leaves increased in area and thickness, in c...

journal_title：Plant physiology

authors： Carmi A,Koller D

更新日期：1979-08-01 00:00:00

abstract：:Despite a growing number of reports indicating non-Mendelian inheritance of transgene expression in monocots, no detailed description of the structure and stability of the transgene exists for transformants generated by direct DNA-transfer techniques, making the cause for these observations difficult to determine. In ...

journal_title：Plant physiology

authors： Kumpatla SP,Teng W,Buchholz WG,Hall TC

更新日期：1997-10-01 00:00:00

abstract：:Experiments are described further indicating that O(2)-resistant photosynthesis observed in a tobacco (Nicotiana tabacum) mutant with enhanced catalase activity is associated with decreased photorespiration under conditions of high photorespiration relative to net photosynthesis. The effects on net photosynthesis of (...

journal_title：Plant physiology

authors： Zelitch I

更新日期：1990-08-01 00:00:00

abstract：:Cool season crops face intermittent drought. Exposure to drought and other abiotic stresses is known to increase tolerance of the plants against subsequent exposure to such stresses. Storage of environmental signals is also proposed. Preexposure to a dehydration shock improved adaptive response during subsequent dehyd...

journal_title：Plant physiology

authors： Boominathan P,Shukla R,Kumar A,Manna D,Negi D,Verma PK,Chattopadhyay D

更新日期：2004-07-01 00:00:00

abstract：:Mutant strain 1073 of Lemna perpusilla is concluded to be blocked between plastoquinone and cytochrome f in the photosynthetic electron transport system. The location of the block is based on the following observations of activities in chloroplasts isolated from the mutant and wild-type plants. (a) Relative to wild ty...

journal_title：Plant physiology

authors： Shahak Y,Posner HB,Avron M

更新日期：1976-04-01 00:00:00

abstract：:Phosphorus (P) is a finite natural resource and an essential plant macronutrient with major impact on crop productivity and global food security. Here, we demonstrate that time-resolved chlorophyll a fluorescence is a unique tool to monitor bioactive P in plants and can be used to detect latent P deficiency. When plan...

journal_title：Plant physiology

authors： Frydenvang J,van Maarschalkerweerd M,Carstensen A,Mundus S,Schmidt SB,Pedas PR,Laursen KH,Schjoerring JK,Husted S

更新日期：2015-09-01 00:00:00

abstract：:A method is described to achieve density labeling of proteins in unicellular algae by using (13)CO(2). This is a satisfactory procedure especially for work on nitrogen metabolism. The increase in activity of glutamine synthetase (EC 6.3.1.2.) and glutamate synthase (EC 1.4.7.1.) in Chlorella sorokiniana mediated by a ...

journal_title：Plant physiology

authors： Tischner R

更新日期：1980-11-01 00:00:00

abstract：:Ion transport, measured using double-barreled micropipettes to obtain current-voltage relations, was examined in Arabidopsis thaliana root hairs that continued tip growth and cytoplasmic streaming after impalement with the micropipette. To do this required in situ measurements with no handling of the seedlings to avoi...

journal_title：Plant physiology

authors： Lew RR

更新日期：1991-12-01 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

authors： Garber MP,Steponkus PL

更新日期：1976-05-01 00:00:00

abstract：:The elongation response elicited by incubating excised hypocotyl sections of lettuce (Lactuca sativa L.) in light in gibberellin (GA) can be enhanced by the addition of Cl(-), Br(-), and NO(3) (-) salts of K(+) and Na(+). Sections incubated in light in the absence of GA do not elongate in response to the addition of s...

journal_title：Plant physiology

authors： Stuart DA,Jones RL

更新日期：1977-01-01 00:00:00

abstract：:A radiation-induced mutant of Scotch spearmint (Mentha x gracilis) was shown to produce an essential oil containing principally C3-oxygenated p-menthane monoterpenes that are typical of peppermint, instead of the C6-oxygenated monoterpene family characteristic of spearmint. In vitro measurement of all of the enzymes r...

journal_title：Plant physiology

authors： Croteau R,Karp F,Wagschal KC,Satterwhite DM,Hyatt DC,Skotland CB

更新日期：1991-07-01 00:00:00

abstract：:Widespread antibiotic resistance is a major public health concern, and plants represent an emerging antibiotic exposure route. Recent studies indicate that crop plants fertilized with antibiotic-laden animal manure accumulate antibiotics; however, the molecular mechanisms of antibiotic entry and subcellular partitioni...

journal_title：Plant physiology

authors： Conte S,Stevenson D,Furner I,Lloyd A

更新日期：2009-10-01 00:00:00