The Arabidopsis mitogen-activated protein kinase phosphatase PP2C5 affects seed germination, stomatal aperture, and abscisic acid-inducible gene expression.

abstract：:Germination of lettuce (Lactuca sativa) 'Grand Rapids' seeds is regulated by phytochrome. The action of phytochrome includes alterations in the levels of gibberellin (GA) and abscisic acid (ABA). To determine the molecular mechanism of phytochrome regulation of ABA metabolism, we isolated four lettuce cDNAs encoding 9...

journal_title：Plant physiology

authors： Sawada Y,Aoki M,Nakaminami K,Mitsuhashi W,Tatematsu K,Kushiro T,Koshiba T,Kamiya Y,Inoue Y,Nambara E,Toyomasu T

更新日期：2008-03-01 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：:Excised corn roots, Zea mays, had radioactively labeled solution applied at two points along their length, for 1 minute, and were then kept in dilute, unlabeled nutrient solution. During this "chase" period, exudate was collected at 1-minute intervals, and its content of radioions was determined. Two pulses of label a...

journal_title：Plant physiology

authors： Epstein E,Norlyn JD

更新日期：1973-10-01 00:00:00

abstract：:Four putative apyrase genes were identified from the model legume Medicago truncatula. Two of the genes identified from M. truncatula (Mtapy1 and Mtapy4) are expressed in roots and are inducible within 3 h after inoculation with Sinorhizobium meliloti. The level of mRNA expression of the other two putative apyrases, M...

journal_title：Plant physiology

authors： Cohn JR,Uhm T,Ramu S,Nam YW,Kim DJ,Penmetsa RV,Wood TC,Denny RL,Young ND,Cook DR,Stacey G

更新日期：2001-04-01 00:00:00

abstract：:Photosynthesis, primary productivity, N content, and N(2) fixation were determined as a function of applied NH(4) (+) in peas (Pisum sativum L. cv. Alaska) which were inoculated or not inoculated with Rhizobium leguminosarum. Cabon dioxide exchange rate (CER) increased 10-fold, total N content 7-fold, and total dry we...

journal_title：Plant physiology

authors： Bethlenfalvay GJ,Abu-Shakra SS,Phillips DA

更新日期：1978-07-01 00:00:00

abstract：:Suberin is a complex hydrophobic polymer that acts as a barrier controlling water and solute fluxes and restricting pathogen infections. Suberin is deposited immediately outside of the plasmalemma in the cell wall of certain tissues such as endodermis of roots, aerial and underground periderms, and seed coats. Suberin...

journal_title：Plant physiology

authors： Delude C,Fouillen L,Bhar P,Cardinal MJ,Pascal S,Santos P,Kosma DK,Joubès J,Rowland O,Domergue F

更新日期：2016-07-01 00:00:00

abstract：:Plumeria (Plumeria rubra), well known for its brightly colored and fragrant flowers, emits a number of floral volatile organic compounds (VOCs). Plumeria flowers emit a total of 43 VOCs including nine phenylpropanoids/benzenoids, such as 2-phenylethanol (2PE), benzaldehyde, 2-phenylacetaldehyde (PAld), (E/Z)-phenylace...

journal_title：Plant physiology

authors： Dhandapani S,Jin J,Sridhar V,Chua NH,Jang IC

更新日期：2019-05-01 00:00:00

abstract：:The white petals of chrysanthemum (Chrysanthemum morifolium Ramat.) are believed to contain a factor that inhibits the accumulation of carotenoids. To find this factor, we performed polymerase chain reaction-Select subtraction screening and obtained a clone expressed differentially in white and yellow petals. The dedu...

journal_title：Plant physiology

authors： Ohmiya A,Kishimoto S,Aida R,Yoshioka S,Sumitomo K

更新日期：2006-11-01 00:00:00

abstract：:Within branched root systems, a distinct heterogeneity of traits exists. Knowledge about the ecophysiology of different root types is critical to understand root system functioning. Classification schemes have to match functional root types as closely as possible to be used for sampling and modeling. Among ecophysiolo...

journal_title：Plant physiology

authors： Rewald B,Rechenmacher A,Godbold DL

更新日期：2014-10-01 00:00:00

abstract：:Jasmonates (JAs) regulate a wide range of plant defense and development processes. The bioactive JA is perceived by its receptor COI1 to trigger the degradation of JASMONATE ZIM-DOMAIN (JAZ) proteins and subsequently derepress the JAZ-repressed transcription factors for activation of expression of JA-responsive genes....

journal_title：Plant physiology

authors： Yan J,Li S,Gu M,Yao R,Li Y,Chen J,Yang M,Tong J,Xiao L,Nan F,Xie D

更新日期：2016-12-01 00:00:00

abstract：:The plant hormone abscisic acid (ABA) is involved in an array of plant processes, including the regulation of gene expression during adaptive responses to various environmental cues. Apart from its well-established role in abiotic stress adaptation, emerging evidence indicates that ABA is also prominently involved in ...

journal_title：Plant physiology

authors： De Vleesschauwer D,Yang Y,Cruz CV,Höfte M

更新日期：2010-04-01 00:00:00

abstract：:The construction, operation, and effectiveness of an abscission measuring instrument called an abscissor is described. The device measured the force required for a spring-opposed plunger to shear abscission zone explants and was capable of automatically recording break strength data. Examples of data obtained with the...

journal_title：Plant physiology

authors： Craker LE,Abeles FB

更新日期：1969-08-01 00:00:00

abstract：:Protein dephosphorylation by the serine/threonine protein phosphatase 2A (PP2A) modulates a broad array of cellular functions. PP2A normally acts as a heterotrimeric holoenzyme complex comprising a catalytic subunit bound by regulatory A and B subunits. Characterization of the regulatory A subunit isoforms (ROOTS CURL...

journal_title：Plant physiology

authors： Blakeslee JJ,Zhou HW,Heath JT,Skottke KR,Barrios JA,Liu SY,DeLong A

更新日期：2008-02-01 00:00:00

abstract：:Foliar applications of 2 milligrams per liter of 2-chloro-4,6-bis (ethylamino)-s-triazine, 2-methylmercapto-4-ethylamino-6-isobutylamino-s-triazine, and 2-methoxy-4-isopropylamino-6-butylamino-s-triazine caused increases in the activities of starch phosphorylase, pyruvate kinase, cytochrome oxidase, and glutamate dehy...

journal_title：Plant physiology

authors： Wu MT,Singh B,Salunkhe DK

更新日期：1971-11-01 00:00:00

abstract：:It has long been known that leaf senescence can be induced in many plant species by detaching leaves and placing them in the darkness. It recently has been shown that entire Arabidopsis plants placed in the darkness are not induced to senesce, as judged by visible yellowing and certain molecular markers. Here, we show...

journal_title：Plant physiology

authors： Weaver LM,Amasino RM

更新日期：2001-11-01 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：:Root respiration associated with symbiotic fixation in soybean (Glycine max [L.] Merr.) was estimated by four methods.Averaged over the life of the plant, the root respires 5.8 milligrams C per milligram N accumulated from fixation. When nitrogenase (C(2)H(2)) activity and root respiration were decreased by treating r...

journal_title：Plant physiology

authors： Patterson TG,Larue TA

更新日期：1983-07-01 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：:The effect of ultraviolet B (UV-B) radiation on the thermal sensitivity of cucumber (Cucumis sativus L.) was studied using UV-B-sensitive cv Poinsett 76 and UV-B-resistant cv Ashley grown under control and elevated (300 mW m-2) UV-B radiation levels. Using both cotyledon and leaf discs, the ability of the tissue to re...

journal_title：Plant physiology

authors： Caldwell CR

更新日期：1994-02-01 00:00:00

abstract：:Folates typically have gamma-linked polyglutamyl tails that make them better enzyme substrates and worse transport substrates than the unglutamylated forms. The tail can be shortened or removed by the vacuolar enzyme gamma-glutamyl hydrolase (GGH). It is known that GGH is active only as a dimer and that plants can hav...

journal_title：Plant physiology

authors： Akhtar TA,McQuinn RP,Naponelli V,Gregory JF 3rd,Giovannoni JJ,Hanson AD

更新日期：2008-10-01 00:00:00

abstract：:The optimum temperature of protein synthesis in wheat seedlings (Triticum aestivum L.), measured as (14)C-leucine incorporation, depends on the growing temperature. Plants grown at reduced temperature (4 C) reach their optimum at 27.5 C, whereas plants kept at 36 C have the highest rate of protein synthesis at 35 C. T...

journal_title：Plant physiology

authors： Weidner M,Ziemens C

更新日期：1975-11-01 00:00:00

abstract：:Respiration utilizing NAD-linked substrates in mitochondria isolated from cotyledons of etiolated peas (Pisum sativum L. var. Homesteader) by sucrose density gradient centrifugation exhibited resistance to rotenone. The inhibited rate of alpha-ketoglutarate oxidation was equivalent to the recovered rate of malate oxid...

journal_title：Plant physiology

authors： Johnson-Flanagan AM,Spencer MS

更新日期：1981-12-01 00:00:00

abstract：:C(4) photosynthesis has evolved multiple times from ancestral C(3) species. Carbonic anhydrase (CA) catalyzes the reversible hydration of CO(2) and is involved in both C(3) and C(4) photosynthesis; however, its roles and the intercellular and intracellular locations of the majority of its activity differ between C(3) ...

journal_title：Plant physiology

authors： Tanz SK,Tetu SG,Vella NG,Ludwig M

更新日期：2009-07-01 00:00:00

abstract：:Isozymes of glutathione reductase (GR) have been purified from red spruce (Picea rubens Sarg.) needles. Two isozymes could be separated by anion-exchange chromatography from both nonhardened or cold-hardened tissue. Based on chromatographic elution profiles, the isozymes were designated GR-1NH and GR-2NH in preparatio...

journal_title：Plant physiology

authors： Hausladen A,Alscher RG

更新日期：1994-05-01 00:00:00

abstract：:The effect of inorganic carbon (Ci) transport and accumulation on photosynthetic electron transport was studied in air-grown cells of the cyanobacterium Synechococcus UTEX 625. When the cells were depleted of Ci, linear photosynthetic electron flow was almost completely inhibited in the presence of the photosystem I (...

journal_title：Plant physiology

authors： Li Q,Canvin DT

更新日期：1997-08-01 00:00:00

abstract：:Soybean (Glycine max [L.] Merr.) seedlings grown in the absence of combined N and in an Ar:O(2) (79:21, volume/volume) atmosphere had greater seedling and nodule mass, threefold higher acetylene reducing activity per gram fresh weight nodules, no observable increase in nitrogenase Fe-protein, and a higher energy charg...

journal_title：Plant physiology

authors： Zhu YX,Schubert KR,Kohl DH

更新日期：1991-05-01 00:00:00

abstract：:The stimulation of the Hill reaction in CO(2)-depleted broken chloroplasts (Pisum sativum L. cv Rondo) by the total amount of dissolved CO(2) and HCO(3) (-) (bicarbonate(*)) was measured at several formate concentrations. Formate appears to be a competitive inhibitor of the bicarbonate(*) stimulation of electron flow....

journal_title：Plant physiology

authors： Snel JF,van Rensen JJ

更新日期：1984-05-01 00:00:00

abstract：:The responses of redroot pigweed (Amaranthus retroflexus L.) seeds to nine ethylene concentrations between 0.5 and 50 microliters per liter were assessed at different temperatures and water potentials and in either continuous white light or darkness. Under all experimental treatments, the probit-transformed percentage...

journal_title：Plant physiology

authors： Schonbeck MW,Egley GH

更新日期：1980-06-01 00:00:00

abstract：:Experiments were conducted with segments of corn roots to investigate whether nitrate reductase (NR) is compartmentalized in particular groups of cells that collectively form the root symplastic pathway. A microsurgical technique was used to separate cells of the epidermis, of the cortex, and of the stele. The presenc...

journal_title：Plant physiology

authors： Rufty TW,Thomas JF,Remmler JL,Campbell WH,Volk RJ

更新日期：1986-11-01 00:00:00

abstract：:A mutation in the ALTERED XYLOGLUCAN9 (AXY9) gene was found to be causative for the decreased xyloglucan acetylation phenotype of the axy9.1 mutant, which was identified in a forward genetic screen for Arabidopsis (Arabidopsis thaliana) mutants. The axy9.1 mutant also exhibits decreased O-acetylation of xylan, implyin...

journal_title：Plant physiology

authors： Schultink A,Naylor D,Dama M,Pauly M

更新日期：2015-04-01 00:00:00