Arabidopsis RopGAPs are a novel family of rho GTPase-activating proteins that require the Cdc42/Rac-interactive binding motif for rop-specific GTPase stimulation.

abstract：:The effect of controlled trypsin digestion of a calmodulin-stimulated Ca2+-ATPase in low-density intracellular membranes from cauliflower (Brassica oleracea L.) inflorescences was investigated. Ca2+ uptake into vesicles was measured either continuously with the fluorescent Ca2+ indicator Calcium Green-5N or with a rad...

journal_title：Plant physiology

authors： Askerlund P

更新日期：1996-03-01 00:00:00

abstract：:Previous studies have shown that the monoterpene ketone l-[G-(3)H] menthone is reduced to the epimeric alcohols l-menthol and d-neomenthol in leaves of flowering peppermint (Mentha piperita L.), and that a portion of the menthol is converted to menthyl acetate while the bulk of the neomenthol is transformed to neoment...

journal_title：Plant physiology

authors： Croteau R,Sood VK,Renstrøm B,Bhushan R

更新日期：1984-11-01 00:00:00

abstract：:Silene vulgaris (Moench) Garcke has evolved populations with extremely high levels of copper tolerance. To evaluate the role of metallothioneins (MTs) in copper tolerance in S. vulgaris, we screened a cDNA library derived from a highly copper-tolerant population using Arabidopsis-based MT probes and identified an MT2b...

journal_title：Plant physiology

authors： van Hoof NA,Hassinen VH,Hakvoort HW,Ballintijn KF,Schat H,Verkleij JA,Ernst WH,Karenlampi SO,Tervahauta AI

更新日期：2001-08-01 00:00:00

abstract：:Aluminum (Al) and proton (H⁺) tolerances are essential traits for plants to adapt to acid soil environments. In Arabidopsis (Arabidopsis thaliana), these tolerances are mediated by a zinc-finger transcription factor, SENSITIVE TO PROTON RHIZOTOXICITY1 (AtSTOP1), which regulates the transcription of multiple genes crit...

journal_title：Plant physiology

authors： Ohyama Y,Ito H,Kobayashi Y,Ikka T,Morita A,Kobayashi M,Imaizumi R,Aoki T,Komatsu K,Sakata Y,Iuchi S,Koyama H

更新日期：2013-08-01 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

authors： Dedolph RR,Dipert MH

更新日期：1971-06-01 00:00:00

abstract：:Climate models predict widespread increases in both drought intensity and duration in the next decades. Although water deficiency is a significant determinant of plant survival, limited understanding of plant responses to extreme drought impedes forecasts of both forest and crop productivity under increasing aridity. ...

journal_title：Plant physiology

authors： Guadagno CR,Ewers BE,Speckman HN,Aston TL,Huhn BJ,DeVore SB,Ladwig JT,Strawn RN,Weinig C

更新日期：2017-09-01 00:00:00

abstract：:2,4-Dichlorophenoxyacetic acid had a multiple effect on the development of indoleacetic acid oxidase isoenzymes in tobacco callus tissues (Nicotiana tabacum, cv. White Gold) cultured in vitro, and the development of these isoenzymes was differentially associated with growth promotion or inhibition depending on the con...

journal_title：Plant physiology

authors： Lee TT

更新日期：1972-06-01 00:00:00

abstract：:Arabidopsis (Arabidopsis thaliana) GOLDEN2-LIKE (GLK) transcription factors promote chloroplast biogenesis by regulating the expression of photosynthesis-related genes. Arabidopsis GLK1 is also known to participate in retrograde signaling from chloroplasts to the nucleus. To elucidate the mechanism by which GLK1 is re...

journal_title：Plant physiology

authors： Tokumaru M,Adachi F,Toda M,Ito-Inaba Y,Yazu F,Hirosawa Y,Sakakibara Y,Suiko M,Kakizaki T,Inaba T

更新日期：2017-01-01 00:00:00

abstract：:Regulation of photosynthetic activity can contribute to the prevention of photodamage in stress resistant plants during exposure to drought or low temperatures. Responses to increasing levels of water stress were examined in seedlings of the stress resistant forest conifer, white spruce (Picea glauca [Moench.] Voss). ...

journal_title：Plant physiology

authors： Toivonen P,Vidaver W

更新日期：1988-03-01 00:00:00

abstract：:Coupling factor particles are associated with membranes of maize etioplasts (Lockshin et al., 1971. Biochim. Biophys. Acta 226: 366-382). In addition, several, but not all, of the polypeptides found in the photosynthetic lamellae of maize chloroplasts are present in etioplasts.During the photoregulated maturation of c...

journal_title：Plant physiology

authors： Forger JM,Bogorad L

更新日期：1973-11-01 00:00:00

abstract：:Net sucrose efflux from discs of fully expanded leaves of soybean (Glycine max [L.] Merr.) plants was studied to characterize sucrose efflux into the apoplast. Net sucrose efflux had a Q(10) of 2.3, was linear for at least 3.5 hours, and was selective for sucrose over glucose. Sulfhydryl group inhibitors reduced sucro...

journal_title：Plant physiology

authors： Secor J

更新日期：1987-01-01 00:00:00

abstract：:Cotton (Gossypium hirsutum L. cv LG102) seedlings raised from seeds exposed to 100 [mu]M norflurazon (NFZ) during imbibition contained reduced levels of free abscisic acid (ABA) and were visibly achlorophyllous. Exposure of untreated cotton seedlings to ethylene concentrations >1 [mu]L/L for 24 h resulted in cotyledon...

journal_title：Plant physiology

authors： Suttle JC,Hultstrand JF

更新日期：1993-02-01 00:00:00

abstract：:Suc transporters (SUTs) play a key role in the allocation and partitioning of photosynthetically fixed carbon in plants. While a function could be assigned to many members of the SUT family, almost no information is available on their regulation. Here, the transcriptional regulation of SUTs in response to various envi...

journal_title：Plant physiology

authors： Xu Q,Chen S,Yunjuan R,Chen S,Liesche J

更新日期：2018-01-01 00:00:00

abstract：:In the interaction between Arabidopsis (Arabidopsis thaliana) and the generalist herbivorous insect Spodoptera littoralis, little is known about early events in defense signaling and their link to downstream phytohormone pathways. S. littoralis oral secretions induced both Ca²⁺ and phytohormone elevation in Arabidopsi...

journal_title：Plant physiology

authors： Vadassery J,Reichelt M,Hause B,Gershenzon J,Boland W,Mithöfer A

更新日期：2012-07-01 00:00:00

abstract：:Ca-mediated processes are known to be involved in transducing many developmental, hormonal, and environmental cues in plant cells. In this study, the role of Ca in the perception of anoxic stress signals by maize (Zea mays L. cv B73) roots was assessed by studying the effect of various Ca antagonists on the induction ...

journal_title：Plant physiology

authors： Subbaiah CC,Zhang J,Sachs MM

更新日期：1994-05-01 00:00:00

abstract：:Despite ongoing research on carotenoid biosynthesis in model organisms, there is a paucity of information on pathway regulation operating in the grasses (Poaceae), which include plants of world-wide agronomic importance. As a result, efforts to either breed for or metabolically engineer improvements in carotenoid cont...

journal_title：Plant physiology

authors： Gallagher CE,Matthews PD,Li F,Wurtzel ET

更新日期：2004-07-01 00:00:00

abstract：:Mitogen-activated protein kinase (MAPK) cascades play important roles in disease resistance in model plant species such as Arabidopsis (Arabidopsis thaliana) and tobacco (Nicotiana tabacum). However, the importance of MAPK signaling pathways in the disease resistance of crops is still largely uninvestigated. To better...

journal_title：Plant physiology

authors： Liu JZ,Horstman HD,Braun E,Graham MA,Zhang C,Navarre D,Qiu WL,Lee Y,Nettleton D,Hill JH,Whitham SA

更新日期：2011-11-01 00:00:00

abstract：:Experiments with ethylene-insensitive tomato (Lycopersicon esculentum) and petunia (Petunia x hybrida) plants were conducted to determine if normal or adventitious root formation is affected by ethylene insensitivity. Ethylene-insensitive Never ripe (NR) tomato plants produced more below-ground root mass but fewer abo...

journal_title：Plant physiology

authors： Clark DG,Gubrium EK,Barrett JE,Nell TA,Klee HJ

更新日期：1999-09-01 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：:Fungal xylanases from Trichoderma spp. are potent elicitors of defense responses in various plants. To determine whether enzymatic activity is necessary for elicitor activity, we used site-directed mutagenesis to reduce the catalytic activity of xylanase II from Trichoderma reesei. For this, the glutamic acid residue ...

journal_title：Plant physiology

authors： Enkerli J,Felix G,Boller T

更新日期：1999-10-01 00:00:00

abstract：:The auxin indole-3-acetic acid (IAA) has been shown to promote the biosynthesis of the active gibberellin (GA(1)) in shoots of pea (Pisum sativum). We used northern analysis to investigate the timing of IAA-induced changes in transcript levels of PsGA3ox1 (Mendel's LE), PsGA2ox1, PsGA2ox2, and PsGA20ox1, key genes for...

journal_title：Plant physiology

authors： O'Neill DP,Ross JJ

更新日期：2002-12-01 00:00:00

abstract：:The rice plant (Oryza sativa L. cv Oochikara) is known to be a Si accumulator, but the mechanism responsible for the high uptake of Si by the roots is not well understood. We investigated the role of root hairs and lateral roots in the Si uptake using two mutants of rice, one defective in the formation of root hairs (...

journal_title：Plant physiology

authors： Ma JF,Goto S,Tamai K,Ichii M

更新日期：2001-12-01 00:00:00

abstract：:The trans-Golgi network (TGN) plays a central role in cellular secretion and has been implicated in sorting cargo destined for the plasma membrane. Previously, the Arabidopsis (Arabidopsis thaliana) echidna (ech) mutant was shown to exhibit a dwarf phenotype due to impaired cell expansion. However, ech also has a prev...

journal_title：Plant physiology

authors： Fan X,Yang C,Klisch D,Ferguson A,Bhaellero RP,Niu X,Wilson ZA

更新日期：2014-03-01 00:00:00

abstract：:The light-harvesting antenna of higher plant photosystem II (LHCII) has the intrinsic capacity to dissipate excess light energy as heat in a process termed nonphotochemical quenching (NPQ). Recent studies suggest that zeaxanthin and lutein both contribute to the rapidly relaxing component of NPQ, qE, possibly acting i...

journal_title：Plant physiology

authors： Johnson MP,Pérez-Bueno ML,Zia A,Horton P,Ruban AV

更新日期：2009-02-01 00:00:00

abstract：:The flavoenzyme ferredoxin-NADP+ reductase (FNR) is a member of the cellular defense barrier against oxidative damage in Escherichia coli. We evaluated the responses of chloroplast FNR to methyl viologen, a superoxide radical propagator, in wheat (Triticum aestivum L.) plants and chloroplasts. Treatments with the herb...

journal_title：Plant physiology

authors： Palatnik JF,Valle EM,Carrillo N

更新日期：1997-12-01 00:00:00

abstract：:Chlorophyll levels in l-cm sections of the youngest fully expanded leaves of normal (Y) Festuca pratensis L. declined almost to zero over a period of 6 days after excision. Chlorophyll in a mutant genotype (NY) remained near the initial level for the whole of this period. Abscisic acid promoted pigment loss in Y but h...

journal_title：Plant physiology

authors： Thomas H,Stoddart JL

更新日期：1975-09-01 00:00:00

abstract：:It is demonstrated that, in etiolated pea (Pisum sativum) epicotyls, ethylene affects the activation of both monomeric GTP-binding proteins (monomeric G-proteins) and protein kinases. For monomeric G-proteins, the effect may be a rapid (2 min) and bimodal up-regulation, a transiently unimodal activation, or a transien...

journal_title：Plant physiology

authors： Moshkov IE,Novikova GV,Mur LA,Smith AR,Hall MA

更新日期：2003-04-01 00:00:00

abstract：:Cultures of the blue-green alga, Aphanocapsa, were grown under iron-limiting conditions and changes in concentration of redox components of the photosynthetic electron transport chain, particularly iron-sulfur centers, were monitored by spectroscopic methods. A moderate iron depletion (1/10 of the normal concentration...

journal_title：Plant physiology

authors： Sandmann G,Malkin R

更新日期：1983-11-01 00:00:00

abstract：:Endo-[beta]-mannanase is hypothesized to be a rate-limiting enzyme in endosperm weakening, which is a prerequisite for radicle emergence from tomato (Lycopersicon esculentum Mill.) seeds. Using a sensitive, single-seed assay, we have measured mannanase activity diffusing from excised tomato endosperm caps following tr...

journal_title：Plant physiology

authors： Still DW,Bradford KJ

更新日期：1997-01-01 00:00:00

abstract：:A synthetic green fluorescent protein (GFP) gene (pgfp) was constructed to improve GFP expression in plants. Corn and tobacco protoplast transient assays showed that pgfp gave about 20-fold brighter fluorescence than the wild-type gene (gfp). Replacement of the serine at position 65 with a threonine (S65Tpgfp) or a cy...

journal_title：Plant physiology

authors： Pang SZ,DeBoer DL,Wan Y,Ye G,Layton JG,Neher MK,Armstrong CL,Fry JE,Hinchee MA,Fromm ME

更新日期：1996-11-01 00:00:00