Photooxidative Destruction of Chloroplasts Leads to Reduced Expression of Peroxisomal NADH-Dependent Hydroxypyruvate Reductase in Developing Cucumber Cotyledons.

abstract：:Nitrogenase (EC 1.7.99.2) activity (acetylene reduction) and nitrogen fixation ((15)N(2) fixation) were measured in cyanobacteria freshly isolated from the coralloid roots of Macrozamia riedlei (Fisch. ex Gaud.) Gardn. Light and gas phase oxygen concentration had marked interactive effects on activity, with higher (up...

journal_title：Plant physiology

authors： Lindblad P,Atkins CA,Pate JS

更新日期：1991-03-01 00:00:00

abstract：:With an experimental system developed for aquatic plants using the mass spectrometry technique and infrared gas analysis of CO(2), we studied the responses to various O(2) concentrations of gas exchanges with the red macroalga Chondrus crispus S. The results were as follows. (a) Irrespective of the CO(2) concentration...

journal_title：Plant physiology

authors： Brechignac F,Andre M

更新日期：1985-07-01 00:00:00

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

authors： Green LS,Faergestad EM,Poole A,Chandler PM

更新日期：1997-05-01 00:00:00

abstract：:Cotyledons of light-grown soybean (Glycine max L. var Wayne) seedlings were used as a model system to study the possibility that aging requires qualitative changes in protein synthesis. Cotyledons reached a final stage of senescence and then abscised about 22 days after imbibition. Cotyledon senescence was reversed at...

journal_title：Plant physiology

authors： Skadsen RW,Cherry JH

更新日期：1983-04-01 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：:Two active calcium (Ca(2+)) transport systems have been identified and partially characterized in membrane vesicles isolated from cultured carrot cells (Daucus carota Danvers). Both transport systems required MgATP for activity and were enhanced by 10 millimolar oxalate. Ca(2+) transport in membrane vesicles derived f...

journal_title：Plant physiology

authors： Bush DR,Sze H

更新日期：1986-02-01 00:00:00

abstract：:When petunia (Petunia hybrida Vilm, cv Rosy Morn) cells are cultured in the presence of 2 [mu]M antimycin A (AA), respiration proceeds mainly via the cyanide-resistant pathway. Cyanide-resistant respiratory rates were higher in mitochondria from AA cells than in control mitochondria. Compared with control cells, an in...

journal_title：Plant physiology

authors： Wagner AM,Wagner MJ

更新日期：1997-10-01 00:00:00

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

authors： Kringstad R,Kenyon WH,Black CC

更新日期：1980-09-01 00:00:00

abstract：:A comparative study was made of the effects of auxin (alpha-naphthalene acetic acid), kinetin (6-furfurylaminopurine) and a mixture of auxin and kinetin applied in vivo on synthesis of RNA and protein and the distribution of such synthesis amongst the subcellular fractions of sections of endocarp from Kentucky Wonder ...

journal_title：Plant physiology

authors： Sacher JA

更新日期：1967-10-01 00:00:00

abstract：:The sink-source conversion in developing leaves of tobacco (Nicotiana tabacum L.) was studied to determine whether import termination is caused by the onset of export or is related to achievement of positive carbon balance. Albino shoots were grown in vitro and grafted to detopped stems of green tobacco plants. Termin...

journal_title：Plant physiology

authors： Turgeon R

更新日期：1984-09-01 00:00:00

abstract：:Nicotianamine (NA) occurs in all plants and chelates metal cations, including FeII, but reportedly not FeIII. However, a comparison of the FeII and ZnII affinity constants of NA and various FeIII-chelating aminocarboxylates suggested that NA should chelate FeIII. High-voltage electrophoresis of the FeNA complex formed...

journal_title：Plant physiology

authors： von Wiren N,Klair S,Bansal S,Briat JF,Khodr H,Shioiri T,Leigh RA,Hider RC

更新日期：1999-03-01 00:00:00

abstract：:Centromeres are required for faithful segregation of chromosomes in cell division. It is not clear what kind of sequences act as functional centromeres and how centromere sequences are organized in Oryza punctata, a BB genome species. In this study, we found that the CentO centromeric satellites in O. punctata share h...

journal_title：Plant physiology

authors： Zhang W,Yi C,Bao W,Liu B,Cui J,Yu H,Cao X,Gu M,Liu M,Cheng Z

更新日期：2005-09-01 00:00:00

abstract：:The idea that embolized xylem vessels can be refilled while adjacent vessels remain under tension is difficult to accept if the cavitated vessels remain hydraulically connected to vessels under tension. A mechanism by which embolized conduits could be hydraulically isolated from adjacent conduits requires the existenc...

journal_title：Plant physiology

authors： Zwieniecki MA,Holbrook NM

更新日期：2000-07-01 00:00:00

abstract：:Phototropins (phot1 and phot2) are plant blue-light receptors that mediate phototropism, chloroplast movement, stomatal opening, rapid inhibition of growth of etiolated seedlings, and leaf expansion in Arabidopsis (Arabidopsis thaliana). Their N-terminal region contains two light, oxygen, or voltage (LOV) domains, whi...

journal_title：Plant physiology

authors： Cho HY,Tseng TS,Kaiserli E,Sullivan S,Christie JM,Briggs WR

更新日期：2007-01-01 00:00:00

abstract：:The aim of this work was to investigate starch granule numbers in Arabidopsis (Arabidopsis thaliana) leaves. Lack of quantitative information on the extent of genetic, temporal, developmental, and environmental variation in granule numbers is an important limitation in understanding control of starch degradation and t...

journal_title：Plant physiology

authors： Crumpton-Taylor M,Grandison S,Png KM,Bushby AJ,Smith AM

更新日期：2012-02-01 00:00:00

abstract：:The large ATP synthase gene cluster in spinach (Spinacia oleracea) plastids encodes four of the six chloroplast-encoded ATP synthase subunits. Expression of this cluster was examined to determine its response to light-induced plastid development. Spinach plastid transcripts were isolated from etiolated tissues, etiola...

journal_title：Plant physiology

authors： Green CD,Hollingsworth MJ

更新日期：1992-11-01 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：: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

authors： Humble GD,Hsiao TC

更新日期：1970-09-01 00:00:00

abstract：:High performance liquid chromatography analyses revealed that glutathione (GSH) and cysteine are two of the major low molecular weight thiol compounds in maize root extracts. Treatment of maize roots to heat shock temperatures of 40 degrees C resulted in a decrease of cysteine levels and an increase of GSH levels. Pul...

journal_title：Plant physiology

authors： Nieto-Sotelo J,Ho TH

更新日期：1986-12-01 00:00:00

abstract：:The role of iron in regulating light harvesting and photochemical energy conversion processes was examined in the marine unicellular chlorophyte Dunaliella tertiolecta and the marine diatom Phaeodactylum tricornutum. In both species, iron limitation led to a reduction in cellular chlorophyll concentrations, but an inc...

journal_title：Plant physiology

authors： Greene RM,Geider RJ,Kolber Z,Falkowski PG

更新日期：1992-10-01 00:00:00

abstract：:For an efficient defense response against pathogens, plants must coordinate rapid genetic reprogramming to produce an incompatible interaction. Nitrate Trasnporter2 (NRT2) gene family members are sentinels of nitrate availability. In this study, we present an additional role for NRT2.1 linked to plant resistance again...

journal_title：Plant physiology

authors： Camañes G,Pastor V,Cerezo M,García-Andrade J,Vicedo B,García-Agustín P,Flors V

更新日期：2012-02-01 00:00:00

abstract：:Peptide substrates of well-defined protein kinases were microinjected into aleurone protoplasts of barley (Hordeum vulgare L. cv Himalaya) to inhibit, and therefore identify, protein kinase-regulated events in the transduction of the gibberellin (GA) and abscisic acid signals. Syntide-2, a substrate designed for Ca2+-...

journal_title：Plant physiology

authors： Ritchie S,Gilroy S

更新日期：1998-02-01 00:00:00

abstract：:Glutamine synthetase (GS) from Synechocystis sp. PCC 6803 was inactivated in vivo by transferring cells from light to darkness or by incubation with the photosynthetic inhibitor 3-(3,4-dichlorophenyl)-1,1-dimethylurea but not with 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone. Addition of glucose prevented both dark...

journal_title：Plant physiology

authors： Reyes JC,Crespo JL,Garcia-Dominguez M,Florencio FJ

更新日期：1995-11-01 00:00:00

abstract：:Dunaliella bardawil, a beta-carotene-accumulating halotolerant alga, has been analyzed for the effect of various growth conditions on its pigment content, and compared with Dunaliella salina, a beta-carotene nonaccumulating species. In D. bardawil, increasing light intensity and light period or inhibiting growth by va...

journal_title：Plant physiology

authors： Ben-Amotz A,Avron M

更新日期：1983-07-01 00:00:00

abstract：:Aspartate aminotransferase (AAT), a key enzyme in the biosynthesis of aspartate and asparagine, occurs as two forms in alfalfa (Medicago sativa L.), AAT-1 and AAT-2. Both forms were purified to near homogeneity, and high titer polyclonal antibodies produced to the native proteins. Alfalfa AAT-1 was purified from root ...

journal_title：Plant physiology

authors： Farnham MW,Miller SS,Griffith SM,Vance CP

更新日期：1990-06-01 00:00:00

abstract：:Auxin-binding protein 1 subsp. mays (ABP1) has been suggested as a receptor mediating auxin-induced cell expansion and differentiation. In maize (Zea mays), ABP1 is encoded by a single gene, Abp1. The TATA and CAAT promoter elements as well as the transcriptional start site were previously identified and all were foun...

journal_title：Plant physiology

authors： Elrouby N,Bureau TE

更新日期：2000-09-01 00:00:00

abstract：:The 2- to 4-fold rise in particle-bound beta-glucan synthetase (uridine diphosphate-glucose: beta-1, 4-glucan glucosyltransferase) activity that can be induced by indoleacetic acid in pea stem tissue is not prevented by concentrations of actinomycin D or cycloheximide that inhibit growth and macromolecule synthesis. T...

journal_title：Plant physiology

authors： Ray PM

更新日期：1973-04-01 00:00:00

abstract：:Previous work has shown that tobacco (Nicotiana tabacum) plants engineered to express spinach choline monooxygenase in the chloroplast accumulate very little glycine betaine (GlyBet) unless supplied with choline (Cho). We therefore used metabolic modeling in conjunction with [(14)C]Cho labeling experiments and in vivo...

journal_title：Plant physiology

authors： McNeil SD,Rhodes D,Russell BL,Nuccio ML,Shachar-Hill Y,Hanson AD

更新日期：2000-09-01 00:00:00

abstract：:We have examined the effects of the substituted pyridazinone herbicide, 4-chloro-5-(dimethylamino)-2-phenyl-3(2H)pyridazinone (BASF 13-338, Sandoz 9785), on the desaturation of linoleic acid (18:2) on different molecular species of monogalactosyldiacylglycerol (MGDG) and phosphatidylcholine (PC) in leaf tissue of Arab...

journal_title：Plant physiology

authors： Norman HA,John JB

更新日期：1987-11-01 00:00:00

abstract：:Phytosulfokine (PSK) is a sulfated peptide hormone required for the proliferation and differentiation of plant cells. Here, we characterize the physiological roles of PSK in transdifferentiation of isolated mesophyll cells of zinnia (Zinnia elegans 'Canary Bird') into tracheary elements (TEs). Transcripts for a zinnia...

journal_title：Plant physiology

authors： Motose H,Iwamoto K,Endo S,Demura T,Sakagami Y,Matsubayashi Y,Moore KL,Fukuda H

更新日期：2009-05-01 00:00:00