The decisive step in betaxanthin biosynthesis is a spontaneous reaction1

abstract：:A mass spectrometric method combining (16)O/(18)O and (12)C/(13)C isotopes was used to quantify the unidirectional fluxes of O(2) and CO(2) during a dark to light transition for guard cell protoplasts and mesophyll cell protoplasts of Commelina communis L. In darkness, O(2) uptake and CO(2) evolution were similar on a...

journal_title：Plant physiology

authors： Gautier H,Vavasseur A,Gans P,Lascève G

更新日期：1991-02-01 00:00:00

abstract：:Purified glutamine synthetase from pea seedlings was most active with Mg(2+) as the metal activator, but Mn(2+) and Co(2+) were 45 to 60% and 30 to 45% as effective, respectively, when assayed at the optimal pH for each cation. The Mg(2+) saturation curve was quite sigmoid, and evidence indicates that MgATP is the act...

journal_title：Plant physiology

authors： O'neal D,Joy KW

更新日期：1974-11-01 00:00:00

abstract：:Rubisco catalyzes the fixation of CO2 into organic compounds that are used for plant growth and the production of agricultural products, and specific sugar-phosphate derivatives bind tightly to the active sites of Rubisco, locking the enzyme in a catalytically inactive conformation. 2-carboxy-d-arabinitol-1-phosphate ...

journal_title：Plant physiology

authors： Lobo AKM,Orr DJ,Gutierrez MO,Andralojc PJ,Sparks C,Parry MAJ,Carmo-Silva E

更新日期：2019-10-01 00:00:00

abstract：:Plant cells rely on plasmodesmata for intercellular transport of small signaling molecules as well as larger informational macromolecules such as proteins. A green fluorescent protein (GFP) reporter and low-pressure microprojectile bombardment were used to quantify the degree of symplastic continuity between cells of ...

journal_title：Plant physiology

authors： Crawford KM,Zambryski PC

更新日期：2001-04-01 00:00:00

abstract：:The adaptability of root system architecture to unevenly distributed mineral nutrients in soil is a key determinant of plant performance. The molecular mechanisms underlying nitrate dependent plasticity of lateral root branching across the different root types of maize are only poorly understood. In this study, detail...

journal_title：Plant physiology

authors： Yu P,Baldauf JA,Lithio A,Marcon C,Nettleton D,Li C,Hochholdinger F

更新日期：2016-03-01 00:00:00

abstract：:A MADS-box gene, MdMADS2, was isolated from the apple (Malus x domestica Borkh.) var Fuji and its developmental expression pattern was studied during flower development. MdMADS2 shares a high degree of amino acid sequence identity with the SQUAMOSA subfamily of genes. RNA blot analysis showed that MdMADS2 is transcrib...

journal_title：Plant physiology

authors： Sung SK,Yu GH,An G

更新日期：1999-08-01 00:00:00

abstract：:In nature, plants interact with numerous beneficial or pathogenic soil-borne microorganisms. Plants have developed various defense strategies to expel pathogenic microbes, some of which function soon after pathogen infection. We used Medicago truncatula and its oomycete pathogen Aphanomyces euteiches to elucidate earl...

journal_title：Plant physiology

authors： Yadav H,Dreher D,Athmer B,Porzel A,Gavrin A,Baldermann S,Tissier A,Hause B

更新日期：2019-07-01 00:00:00

abstract：:Polygalacturonase-inhibiting protein (PGIP) is a cell wall protein that inhibits fungal polygalacturonases (PGs) and retards the invasion of plant tissues by phytopathogenic fungi. Here, we report the interaction of two PGIP isoforms from Phaseolus vulgaris (PvPGIP1 and PvPGIP2) with both polygalacturonic acid and cel...

journal_title：Plant physiology

authors： Spadoni S,Zabotina O,Di Matteo A,Mikkelsen JD,Cervone F,De Lorenzo G,Mattei B,Bellincampi D

更新日期：2006-06-01 00:00:00

abstract：:Cultures of Lemna gibba L. G3 were maintained at a constant, N-limited growth rate by adding nitrate daily in amounts calculated to sustain a rate of culture N increment of 0.20 day(-1). Nitrate added to the culture was consumed within 8 to 10 hours and the partitioning to reduction and accumulation during this phase ...

journal_title：Plant physiology

authors： Ingemarsson B

更新日期：1987-11-01 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

authors： Livingston DP 3rd,Olien CR,Premakumar R

更新日期：2000-03-01 00:00:00

abstract：:Oilseed plants like Arabidopsis (Arabidopsis thaliana) develop green photosynthetically active embryos. Upon seed maturation, the embryonic chloroplasts degenerate into a highly reduced plastid type called the eoplast. Upon germination, eoplasts redifferentiate into chloroplasts and other plastid types. Here, we descr...

journal_title：Plant physiology

authors： Ruppel NJ,Logsdon CA,Whippo CW,Inoue K,Hangarter RP

更新日期：2011-01-01 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：:The effects of the diphenyl ether herbicides HOE 29152 (methyl-2[4-(4-trifluoromethoxy) phenoxy] propanoate) and nitrofluorfen (2-chloro-1-[4-nitrophenoxy]-4-[trifluoromethyl]benzene) on photosynthetic electron transport have been examined with pea seedling and spinach chloroplasts. Linear electron transport (water to...

journal_title：Plant physiology

authors： Bugg MW,Whitmarsh J,Rieck CE,Cohen WS

更新日期：1980-01-01 00:00:00

abstract：:The esterification of methylecgonine (2-carbomethoxy-3β-tropine) with benzoic acid is the final step in the biosynthetic pathway leading to the production of cocaine in Erythoxylum coca. Here we report the identification of a member of the BAHD family of plant acyltransferases as cocaine synthase. The enzyme is capabl...

journal_title：Plant physiology

authors： Schmidt GW,Jirschitzka J,Porta T,Reichelt M,Luck K,Torre JC,Dolke F,Varesio E,Hopfgartner G,Gershenzon J,D'Auria JC

更新日期：2015-01-01 00:00:00

abstract：:Heterotrimeric G proteins have been shown to transmit ultraviolet B (UV-B) signals in mammalian cells, but whether they also transmit UV-B signals in plant cells is not clear. In this paper, we report that 0.5 W m(-2) UV-B induces stomatal closure in Arabidopsis (Arabidopsis thaliana) by eliciting a cascade of intrace...

journal_title：Plant physiology

authors： He JM,Ma XG,Zhang Y,Sun TF,Xu FF,Chen YP,Liu X,Yue M

更新日期：2013-03-01 00:00:00

abstract：:Wheat (Triticum aestivum L. cv Etoile de Choisy) microsomes catalyzed the cytochrome P-450-dependent oxidation of the herbicide diclofop to three hydroxy-diclofop isomers. Hydroxylation was predominant at carbon 4, with migration of chlorine to carbon 5 (67%) and carbon 3 (25%). The 2,4-dichloro-5-hydroxy isomer was i...

journal_title：Plant physiology

authors： Zimmerlin A,Durst F

更新日期：1992-10-01 00:00:00

abstract：:The relationship between net photosynthesis and CO(2) concentration was investigated for four species of lichen using an infrared gas analyzer operating in a closed loop system. All species showed a linear relationship at low CO(2) levels (100 microliters per liter) with CO(2) saturation levels being in excess of 400 ...

journal_title：Plant physiology

authors： Green TG,Snelgar WP

更新日期：1981-07-01 00:00:00

abstract：:Six Arabidopsis (Arabidopsis thaliana) clade A protein phosphatase 2Cs (PP2Cs) have established abscisic acid (ABA) signaling roles; however, phenotypic roles of the remaining three "HAI" PP2Cs, Highly ABA-Induced1 (HAI1), AKT1-Interacting PP2C1/HAI2, and HAI3, have remained unclear. HAI PP2C mutants had enhanced prol...

journal_title：Plant physiology

authors： Bhaskara GB,Nguyen TT,Verslues PE

更新日期：2012-09-01 00:00:00

abstract：:The dark respiration rate of discs from fully expanded tobacco leaves (Nicotiana tabacum) increased linearly with decreasing diameter, the relative increase being independent of leaf age. The wound respiration responsible for this situation reached a plateau within 15 minutes of excision. Metabolite analysis gave evid...

journal_title：Plant physiology

authors： Macnicol PK

更新日期：1976-01-01 00:00:00

abstract：:Cotyledons of cotton (Gossypium hirsutum L.) seedlings grown under a photoperiod of 12 hour darkness and 12 hour light showed daily oscillations in ethylene evolution. The rate of ethylene evolution began to increase toward the end of the dark period and reached a maximum rate during the first third of the light perio...

journal_title：Plant physiology

authors： Rikin A,Chalutz E,Anderson JD

更新日期：1984-06-01 00:00:00

abstract：:Plants sense and integrate a variety of signals from the environment through different interacting signal transduction pathways that involve hormones and signaling molecules. Using ALTERNATIVE OXIDASE1a (AOX1a) gene expression as a model system of retrograde or stress signaling between mitochondria and the nucleus, MY...

journal_title：Plant physiology

authors： Zhang X,Ivanova A,Vandepoele K,Radomiljac J,Van de Velde J,Berkowitz O,Willems P,Xu Y,Ng S,Van Aken O,Duncan O,Zhang B,Storme V,Chan KX,Vaneechoutte D,Pogson BJ,Van Breusegem F,Whelan J,De Clercq I

更新日期：2017-03-01 00:00:00

abstract：:The delivery of proteins instead of DNA into plant cells allows for a transient presence of the protein or enzyme that can be useful for biochemical analysis or genome modifications. This may be of particular interest for genome editing, because it can avoid DNA (transgene) integration into the genome and generate pre...

journal_title：Plant physiology

authors： Martin-Ortigosa S,Peterson DJ,Valenstein JS,Lin VS,Trewyn BG,Lyznik LA,Wang K

更新日期：2014-02-01 00:00:00

abstract：:Conditions influencing the opening of the bean (Phaseolus vulgaris L.) and cotton (Gossypium hirsutum L.) hypocotyl hook were defined. Such hooks were shown to undergo geotropic curvature; orientation of the hook with respect to gravity greatly affected the observed opening. Cotton and bean hooks behaved exactly oppos...

journal_title：Plant physiology

authors： Powell RD,Morgan PW

更新日期：1970-05-01 00:00:00

abstract：:The cytokinin activity has been isolated and identified from extracts of immature mango (Mangifera indica L.) seeds. The structures of zeatin, zeatin riboside, and N(6)-(Delta(2)-isopentenyl)adenine riboside were confirmed on the basis of their chromatographic behavior and mass spectra of trimethylsilyl derivatives. B...

journal_title：Plant physiology

authors： Chen WS

更新日期：1983-02-01 00:00:00

abstract：:The in vitro degradation of green tomato (Lycopersicon esculentum L.) cell walls by an extract of ripe fruits was characterized. The susceptibility of isolated walls to enzymolysis varied considerably among the different cultivars tested. Wall solubilization in vitro appeared to be nearly as extensive as that which ac...

journal_title：Plant physiology

authors： Wallner SJ,Bloom HL

更新日期：1977-08-01 00:00:00

abstract：:Chloroplast division is driven by a macromolecular complex containing components that are positioned on the cytosolic surface of the outer envelope, the stromal surface of the inner envelope, and in the intermembrane space. The only constituents of the division apparatus identified thus far are the tubulin-like protei...

journal_title：Plant physiology

authors： McAndrew RS,Froehlich JE,Vitha S,Stokes KD,Osteryoung KW

更新日期：2001-12-01 00:00:00

abstract：:The metabolism of arginine by etiolated pumpkin (Cucurbita moschata) seedlings was studied over various time and age intervals by injecting arginine-U-(14)C into the cotyledons. At most, 25% of the (14)C was transported from the cotyledon to the axis tissue and the amount of this transport decreased with increasing ag...

journal_title：Plant physiology

authors： Splittstoesser WE

更新日期：1969-03-01 00:00:00

abstract：:The possibility of HCO(3) (-) transport into isolated leaf mesophyll cells of Asparagus sprengeri Regel has been investigated. Measurement of the inorganic carbon pool in these cells over an external pH range 6.2 to 8.0, using the silicone-fluid filtration technique, indicated that the pool was larger than predicted b...

journal_title：Plant physiology

authors： Espie GS,Colman B

更新日期：1982-09-01 00:00:00

abstract：:We understand few details about how the arrangement and interactions of cell wall polymers produce the mechanical properties of primary cell walls. Consequently, we cannot quantitatively assess if proposed wall structures are mechanically reasonable or assess the effectiveness of proposed mechanisms to change mechanic...

journal_title：Plant physiology

authors： Kha H,Tuble SC,Kalyanasundaram S,Williamson RE

更新日期：2010-02-01 00:00:00

abstract：:delta-Aminolevulinic acid (ALA), a key precursor of the tetrapyrroles heme and chlorophyll, is capable of being synthesized by two different routes in cells of the unicellular green alga Euglena gracilis: from the intact carbon skeleton of glutamate, and via the condensation of glycine and succinyl CoA, mediated by th...

journal_title：Plant physiology

authors： Foley T,Dzelzkalns V,Beale SI

更新日期：1982-07-01 00:00:00