Plasma membrane potential of the alga dunaliella, and its relation to osmoregulation.

abstract：:Mitochondrial citrate synthase was purified from leaves of Pisum sativum L. cv Progress 9. A three step purification was employed using ATP-Sepharose affinity chromatography which resulted in a 600-fold enrichment. Enzyme activity was assayed spectrophotometrically during greening of etiolated leaves under constant wh...

journal_title：Plant physiology

authors： Unger EA,Vasconcelos AC

更新日期：1989-03-01 00:00:00

abstract：:Infrared video thermography was used to observe ice nucleation temperatures, patterns of ice formation, and freezing rates in nonacclimated and cold acclimated leaves of a spring (cv Quest) and a winter (cv Express) canola (Brassica napus). Distinctly different freezing patterns were observed, and the effect of water ...

journal_title：Plant physiology

authors： Gusta LV,Wisniewski M,Nesbitt NT,Gusta ML

更新日期：2004-07-01 00:00:00

abstract：:Plasma membranes were isolated from oat (Avena sativa) roots by the phase-partitioning method. The membranes were exposed to repeated periods of moderate water-deficit stress, and a water-deficit tolerance was induced (acclimated plants). The plasma membranes of the controls (nonacclimated plants) were characterized b...

journal_title：Plant physiology

authors： Norberg P,Liljenberg C

更新日期：1991-08-01 00:00:00

abstract：:In sweet pea (Lathyrus odoratus L.) the mutant allele l reduced the level of gibberellin A1 (GA1) in expanding leaflets and resulted in smaller, more oval leaflets compared with the wild type. The apical portions of 6-d-old wild-type (L) seedlings also contained less GA1 and produced smaller, more oval leaflets than d...

journal_title：Plant physiology

authors： Ross JJ,Murfet IC,Reid JB

更新日期：1993-06-01 00:00:00

abstract：:Intact spinach and barley chloroplast normally incorporate (14)C-acetate into palmitate and oleate as the major (14)C fatty acids. Addition of nitrite markedly altered the relative patterns of the products with the appearance of stearate, a drop in oleate, but no marked change in palmitate. Arsenite greatly increased ...

journal_title：Plant physiology

authors： Kannangara CG,Stumpf PK

更新日期：1972-04-01 00:00:00

abstract：:An important question concerning the role of carboxyarabinitol 1-phosphate (CA1P) metabolism in the light-dependent regulation of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activity is the extent to which CA1P is bound to Rubisco in vivo. We report here the development of an extraction procedure using a...

journal_title：Plant physiology

authors： Moore B,Seemann JR

更新日期：1994-06-01 00:00:00

abstract：:A mutant of tomato (Solanum lycopersicum) with reduced abscisic acid (ABA) production (sitiens) exhibits increased resistance to the necrotrophic fungus Botrytis cinerea. This resistance is correlated with a rapid and strong hydrogen peroxide-driven cell wall fortification response in epidermis cells that is absent in...

journal_title：Plant physiology

authors： Curvers K,Seifi H,Mouille G,de Rycke R,Asselbergh B,Van Hecke A,Vanderschaeghe D,Höfte H,Callewaert N,Van Breusegem F,Höfte M

更新日期：2010-10-01 00:00:00

abstract：:A diffusion model for phloem swelling and contraction is proposed in which the rate of water movement changes markedly with moisture content. Good agreement between the actual swelling of the phloem of cotton stems and that predicted by the model was obtained. This result implies that water moves more readily into the...

journal_title：Plant physiology

authors： Parlange JY,Turner NC,Waggoner PE

更新日期：1975-02-01 00:00:00

abstract：:Methionine (Met) S-methyltransferase (MMT) catalyzes the synthesis of S-methyl-Met (SMM) from Met and S-adenosyl-Met (Ado-Met). SMM can be reconverted to Met by donating a methyl group to homocysteine (homo-Cys), and concurrent operation of this reaction and that mediated by MMT sets up the SMM cycle. SMM has been hyp...

journal_title：Plant physiology

authors： Kocsis MG,Ranocha P,Gage DA,Simon ES,Rhodes D,Peel GJ,Mellema S,Saito K,Awazuhara M,Li C,Meeley RB,Tarczynski MC,Wagner C,Hanson AD

更新日期：2003-04-01 00:00:00

abstract：:Enriched mitochondrial fractions isolated from durum wheat seedlings via differential centrifugation exhibited classical cyanide- or antimycin A-insensitive O(2) uptake which was inhibited by either salicylhydroxamic acid or propyl gallate. Further purification of this fraction using Percoll density gradients resulted...

journal_title：Plant physiology

authors： Goldstein AH,Anderson JO,McDaniel RG

更新日期：1981-03-01 00:00:00

abstract：:Photoinhibition reduces photosynthetic productivity; however, it is difficult to quantify accurately in complex canopies partly because of a lack of high-resolution structural data on plant canopy architecture, which determines complex fluctuations of light in space and time. Here, we evaluate the effects of photoinhi...

journal_title：Plant physiology

authors： Burgess AJ,Retkute R,Pound MP,Foulkes J,Preston SP,Jensen OE,Pridmore TP,Murchie EH

更新日期：2015-10-01 00:00:00

abstract：:Freeze-thaw events can affect plant hydraulics by inducing embolism. This study analyzed the effect of temperature during the freezing process on hydraulic conductivity and ultrasonic emissions (UE). Stems of 10 angiosperms were dehydrated to a water potential at 12% percentage loss of hydraulic conductivity (PLC) and...

journal_title：Plant physiology

authors： Charrier G,Charra-Vaskou K,Kasuga J,Cochard H,Mayr S,Améglio T

更新日期：2014-02-01 00:00:00

abstract：:Cell-free extracts of Chlorella pyrenoidosa contained two enzymes capable of oxidizing d-lactate; these were glycolate dehydrogenase and NAD(+)-dependent d-lactate dehydrogenase. The two enzymes could be distinguished by differential centrifugation, glycolate dehydrogenase being largely particulate and NAD(+)-d-lactat...

journal_title：Plant physiology

authors： Gruber PJ,Frederick SE,Tolbert NE

更新日期：1974-02-01 00:00:00

abstract：:At low-CO2 (air) conditions, the unicellular green alga Chlamydomonas reinhardtii acquires the ability to raise its internal inorganic carbon concentration. To study this adaptation to low CO2, cDNA clones induced under low-CO2 growth conditions were selected through differential screening. One full-length clone is 25...

journal_title：Plant physiology

authors： Chen ZY,Burow MD,Mason CB,Moroney JV

更新日期：1996-10-01 00:00:00

abstract：:Chloroplasts are multifunctional organelles whose morphology is affected by environmental stresses. Although the three-dimensional (3D) architecture of thylakoid membranes has been reported previously, a 3D visualization of chloroplast under stress has not been explored. In this work, we used a positive-strand RNA ((+...

journal_title：Plant physiology

authors： Jin X,Jiang Z,Zhang K,Wang P,Cao X,Yue N,Wang X,Zhang X,Li Y,Li D,Kang BH,Zhang Y

更新日期：2018-01-01 00:00:00

abstract：:Screening of a wheat (Triticum aestivum) cDNA library for starch-branching enzyme I (SBEI) genes combined with 5'-rapid amplification of cDNA ends resulted in isolation of a 4,563-bp composite cDNA, Sbe1c. Based on sequence alignment to characterized SBEI cDNA clones isolated from plants, the SBEIc predicted from the ...

journal_title：Plant physiology

authors： Båga M,Nair RB,Repellin A,Scoles GJ,Chibbar RN

更新日期：2000-09-01 00:00:00

abstract：:The presence of two major aminopeptidases (aminopeptidases I and II) in the giant alga Chara australis was shown using polyacrylamide gel electrophoresis. Partially purified aminopeptidase I had a molecular weight of about 120,000, hydrolyzed both leucine-beta-naphthylamide (pH optimum 6.0) and alanine-beta-naphthylam...

journal_title：Plant physiology

authors： Moriyasu Y,Sakano K,Tazawa M

更新日期：1987-07-01 00:00:00

abstract：:Mevalonic acid-2-(14)C was readily incorporated into the free, esterified, and glycosidic sterol fractions of tobacco (Nicotiana tabacum L. var. Burley 21) seedlings. The time course of mevalonic acid-2-(14)C incorporation was different for the various individual sterols. Campesterol and sitosterol (group I) became ra...

journal_title：Plant physiology

authors： Bush PB,Grunwald C

更新日期：1973-01-01 00:00:00

abstract：:The pathway of phloem unloading in sink barley (Hordeum vulgare) leaves was studied using a combination of electron microscopy, carboxyfluorescein transport, and systemic movement of barley stripe mosaic virus expressing the green fluorescent protein. Studies of plasmodesmatal frequencies between the phloem and mesoph...

journal_title：Plant physiology

authors： Haupt S,Duncan GH,Holzberg S,Oparka KJ

更新日期：2001-01-01 00:00:00

abstract：:Acetophenones are phenolic compounds involved in the resistance of white spruce (Picea glauca) against spruce budworm (Choristoneura fumiferiana), a major forest pest in North America. The acetophenones pungenol and piceol commonly accumulate in spruce foliage in the form of the corresponding glycosides, pungenin and ...

journal_title：Plant physiology

authors： Mageroy MH,Jancsik S,Man Saint Yuen M,Fischer M,Withers SG,Paetz C,Schneider B,Mackay J,Bohlmann J

更新日期：2017-10-01 00:00:00

abstract：:Using novel specially designed instrumentation, fluorescence emission spectra were recorded from Arabidopsis (Arabidopsis thaliana) leaves during the induction period of dark to high-light adaptation in order to follow the spectral changes associated with the formation of nonphotochemical quenching. In addition to an ...

journal_title：Plant physiology

authors： Lambrev PH,Nilkens M,Miloslavina Y,Jahns P,Holzwarth AR

更新日期：2010-03-01 00:00:00

abstract：:A new method has been developed for screening algal photosynthetic mutants. This method uses autoradiography to assess gross photosynthetic 14C fixation by green algal colonies on agar plates and allows the identification of clones that differ in photosynthetic characteristics from wild-type cells. Three wild-type cel...

journal_title：Plant physiology

authors： Matsuda Y,Colman B

更新日期：1996-04-01 00:00:00

abstract：:Transcriptome resources for the medicinal plant Glaucium flavum were searched for orthologs showing identity with characterized O-methyltransferases (OMTs) involved in benzylisoquinoline alkaloid biosynthesis. Seven recombinant proteins were functionally tested using the signature alkaloid substrates for six OMTs: nor...

journal_title：Plant physiology

authors： Chang L,Hagel JM,Facchini PJ

更新日期：2015-10-01 00:00:00

abstract：:A 135-kD actin-bundling protein was purified from pollen tubes of lily (Lilium longiflorum) using its affinity to F-actin. From a crude extract of the pollen tubes, this protein was coprecipitated with exogenously added F-actin and then dissociated from F-actin by treating it with high-ionic-strength solution. The pro...

journal_title：Plant physiology

authors： Yokota E,Shimmen KiTT

更新日期：1998-04-01 00:00:00

abstract：:The chloroplast response in the green alga Dunaliella salina to irradiance stress was investigated. Cells were grown under low light (LL) at 100 [mu]mol photons m-2 s-1 or high light (HL) at 2000 [mu]mol photons m-2 s-1 incident intensity. LL-grown cells had a low chlorophyll (Chl) a/b ratio, an abundance of light-har...

journal_title：Plant physiology

authors： Webb MR,Melis A

更新日期：1995-03-01 00:00:00

abstract：:Function of the cyanide-sensitive mitochondrial electron transport system was required for germination of the Zea mays embryo. Respiration of the standard electron transport system (rather than the alternate oxidase) began immediately upon initiation of imbibition. This respiration depended upon cytochrome c oxidase a...

journal_title：Plant physiology

authors： Ehrenshaft M,Brambl R

更新日期：1990-05-01 00:00:00

abstract：:Protein phosphorylation, catalyzed by the opposing actions of protein kinases and phosphatases, is a cornerstone of cellular signaling and regulation. Since their discovery, protein phosphatases have emerged as highly regulated enzymes with specificity that rivals their counteracting kinase partners. However, despite ...

journal_title：Plant physiology

authors： Uhrig RG,Moorhead GB

更新日期：2011-12-01 00:00:00

abstract：:Oligomeric proanthocyanidins (PAs) composed primarily of epicatechin units accumulate in the seed coats of the model legume Medicago truncatula, reaching maximal levels at around 20 d after pollination. Genes encoding the single Medicago anthocyanidin synthase (ANS; EC 1.14.11.19) and leucoanthocyanidin reductase (LAR...

journal_title：Plant physiology

authors： Pang Y,Peel GJ,Wright E,Wang Z,Dixon RA

更新日期：2007-11-01 00:00:00

abstract：:During desiccation, homoiochlorophyllous resurrection plants retain most of their photosynthetic apparatus, allowing them to resume photosynthetic activity quickly upon water availability. These plants rely on various mechanisms to prevent the formation of reactive oxygen species and/or protect their tissues from the ...

journal_title：Plant physiology

authors： Charuvi D,Nevo R,Shimoni E,Naveh L,Zia A,Adam Z,Farrant JM,Kirchhoff H,Reich Z

更新日期：2015-04-01 00:00:00

abstract：:Chromatographic analysis of organelle-associated citrate synthase activity revealed distinct mitochondrial and glyoxysomal forms of the enzyme. The chromatographic elution patterns on hydroxylapatite, carboxymethylcellulose and DEAE-cellulose of citrate synthase from the endosperm of 4.5-day-old castor bean seedlings ...

journal_title：Plant physiology

authors： Kagawa T

更新日期：1981-10-01 00:00:00