Abscisic acid regulates axillary bud outgrowth responses to the ratio of red to far-red light.


:Low red light/far-red light ratio (R:FR) serves as an indicator of impending competition and has been demonstrated to suppress branch development. The regulation of Arabidopsis (Arabidopsis thaliana) rosette bud outgrowth by the R:FR and the associated mechanisms were investigated at several levels. Growth under low R:FR suppressed outgrowth of the third from topmost bud (bud n-2) but not that of the topmost bud. Subsequently increasing the R:FR near the time of anthesis promoted bud n-2 outgrowth and reduced topmost bud growth. Buds from specific rosette positions, exhibiting divergent fates to increased R:FR, were harvested 3 h after modifying the R:FR and were used to conduct ATH1 microarray-based transcriptome profiling. Differentially expressed genes showed enrichment of light signaling and hormone-related Gene Ontology terms and promoter motifs, most notably those associated with abscisic acid (ABA). Genes associated with ABA biosynthesis, including the key biosynthetic gene NINE-CIS-EPOXYCAROTENOID DIOXYGENASE3 (NCED3), and with ABA signaling were expressed at higher levels in the responsive bud n-2, and increasing the R:FR decreased their expression only in bud n-2. ABA abundance in responsive buds decreased within 12 h of increasing the R:FR, while indole-3-acetic acid levels did not change. A role for ABA in repressing bud outgrowth from lower positions under low R:FR was demonstrated using the nced3-2 and aba2-1 ABA biosynthesis mutants, which showed enhanced branching and a defective bud n-2 outgrowth response to low R:FR. The results provide evidence that ABA regulates bud outgrowth responses to the R:FR and thus extend the known hormonal pathways associated with the regulation of branching and shade avoidance.


Plant Physiol


Plant physiology


Reddy SK,Holalu SV,Casal JJ,Finlayson SA




Has Abstract


2013-10-01 00:00:00














  • The gene expression and enzyme activity of plant 3-deoxy-D-manno-2-octulosonic acid-8-phosphate synthase are preferentially associated with cell division in a cell cycle-dependent manner.

    abstract::3-deoxy-D-manno-2-octulosonic acid-8-phosphate (Kdo-8-P) synthase catalyzes the condensation of phosphoenolpyruvate with D-arabinose-5-phosphate to yield Kdo-8-P. Kdo-8-P is the phosphorylated precursor of Kdo, a rare sugar only found in the rhamnogalacturonan II pectic fraction of the primary cell walls of higher pla...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Delmas F,Petit J,Joubès J,Séveno M,Paccalet T,Hernould M,Lerouge P,Mouras A,Chevalier C

    更新日期:2003-09-01 00:00:00

  • CYP707A1 and CYP707A2, which encode abscisic acid 8'-hydroxylases, are indispensable for proper control of seed dormancy and germination in Arabidopsis.

    abstract::Endogenous abscisic acid (ABA) levels are regulated by both biosynthesis and catabolism of the hormone. ABA 8'-hydroxylase is considered to be the key catabolic enzyme in many physiological processes. We have previously identified that four members of the Arabidopsis (Arabidopsis thaliana) CYP707A gene family (CYP707A...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Okamoto M,Kuwahara A,Seo M,Kushiro T,Asami T,Hirai N,Kamiya Y,Koshiba T,Nambara E

    更新日期:2006-05-01 00:00:00

  • Light-induced Ethylene Production in Sorghum.

    abstract::Ethylene production was induced in sections of dark-grown Sorghum vulgare L. seedlings by treatment with light in the blue and far red regions of the light spectrum. The action spectrum closely resembled the previously reported spectra for high irradiance response; thus, light-induced ethylene production is probably a...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Craker LE,Abeles FB,Shropshire W

    更新日期:1973-06-01 00:00:00

  • Modulation of oat mitochondrial ATPase activity by CA2+ and phytochrome.

    abstract::The activity of a Mg(2+)-dependent ATPase present in highly purified preparations of Avena mitochondria was photoreversibly modulated by red/far-red light treatments. These results were obtained either with mitochondria isolated from plants irradiated with white light prior to the extraction or with mitochondria isol...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Serlin BS,Sopory SK,Roux SJ

    更新日期:1984-04-01 00:00:00

  • Identification of a new glucosinolate-rich cell type in Arabidopsis flower stalk.

    abstract::Distribution of K, Ca, Cl, S, and P in freeze-dried sections of Arabidopsis flower stalk was analyzed by energy dispersive x-ray imaging. Concentrations of these elements in different cell types were quantified by microanalysis of single-cell samples and phloem exudates. Results showed a differential pattern of distri...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Koroleva OA,Davies A,Deeken R,Thorpe MR,Tomos AD,Hedrich R

    更新日期:2000-10-01 00:00:00

  • Selective enhancement of alternative path capacity in plant storage organs in response to ethylene plus oxygen: a comparative study.

    abstract::The respiration rise in bulky storage organs induced by ethylene plus pure O(2) is accompanied by an increase in the CN-resistant respiration, or alternative path. Whereas a lesser respiratory stimulation in response to ethylene is demonstrable in air and increased by peeling, ethylene-induced alternative path develop...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Theologis A,Laties GG

    更新日期:1982-05-01 00:00:00

  • Oxygen-18 and deuterium labeling studies of choline oxidation by spinach and sugar beet.

    abstract::Chenopods synthesize betaine by a two-step oxidation of choline: choline --> betaine aldehyde --> betaine. The pathway is chloroplastic; the first step has been shown in isolated spinach (Spinacia oleracea L.) chloroplasts to be O(2)- and light-dependent, the role of light being to provide reducing power (P Weigel, EA...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Lerma C,Hanson AD,Rhodes D

    更新日期:1988-11-01 00:00:00

  • Identification of Putative Substrates of SEC2, a Chloroplast Inner Envelope Translocase.

    abstract::Most chloroplast proteins are synthesized in the cytosol and imported into chloroplasts. Many imported proteins are further targeted to the thylakoid membrane and lumen by the SEC1, TAT, or SRP/ALB3 translocases. Others are targeted to the inner chloroplast envelope membrane by undescribed translocases. Recently, a se...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Li Y,Martin JR,Aldama GA,Fernandez DE,Cline K

    更新日期:2017-04-01 00:00:00

  • Developmental history affects the susceptibility of spinach leaves to in vivo low temperature photoinhibition.

    abstract::Room temperature chlorophyll a fluorescence was used to determine the effects of developmental history, developmental stage, and leaf age on susceptibility of spinach to in vivo low temperature (5 degrees C) induced photoinhibition. Spinach (Spinacia oleracea cv Savoy) leaves expanded at cold hardening temperatures (5...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Boese SR,Huner NP

    更新日期:1992-07-01 00:00:00

  • The rubisco small subunit is involved in tobamovirus movement and Tm-2²-mediated extreme resistance.

    abstract::The multifunctional movement protein (MP) of Tomato mosaic tobamovirus (ToMV) is involved in viral cell-to-cell movement, symptom development, and resistance gene recognition. However, it remains to be elucidated how ToMV MP plays such diverse roles in plants. Here, we show that ToMV MP interacts with the Rubisco smal...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Zhao J,Liu Q,Zhang H,Jia Q,Hong Y,Liu Y

    更新日期:2013-01-01 00:00:00

  • Evidence for a role of gibberellins in salicylic acid-modulated early plant responses to abiotic stress in Arabidopsis seeds.

    abstract::Exogenous application of gibberellic acid (GA(3)) was able to reverse the inhibitory effect of salt, oxidative, and heat stresses in the germination and seedling establishment of Arabidopsis (Arabidopsis thaliana), this effect being accompanied by an increase in salicylic acid (SA) levels, a hormone that in recent yea...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Alonso-Ramírez A,Rodríguez D,Reyes D,Jiménez JA,Nicolás G,López-Climent M,Gómez-Cadenas A,Nicolás C

    更新日期:2009-07-01 00:00:00

  • Enzymes of beta-Oxidation in Different Types of Algal Microbodies.

    abstract::The algae Mougeotia and Eremosphaera were used for isolation of microbodies with the characteristics of leaf peroxisomes and unspecialized peroxisomes, respectively. In both types of organelles, the following enzymes of the beta-oxidation pathway were determined: acyl-CoA oxido-reductase, enoyl-CoA hydratase, and 3-hy...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Stabenau H,Winkler U,Säftel W

    更新日期:1984-07-01 00:00:00

  • Targeting tryptophan decarboxylase to selected subcellular compartments of tobacco plants affects enzyme stability and in vivo function and leads to a lesion-mimic phenotype.

    abstract::Tryptophan decarboxylase (TDC) is a cytosolic enzyme that catalyzes an early step of the terpenoid indole alkaloid biosynthetic pathway by decarboxylation of L-tryptophan to produce the protoalkaloid tryptamine. In the present study, recombinant TDC was targeted to the chloroplast, cytosol, and endoplasmic reticulum (...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Di Fiore S,Li Q,Leech MJ,Schuster F,Emans N,Fischer R,Schillberg S

    更新日期:2002-07-01 00:00:00

  • Does ethylene play a role in the release of lateral buds (tillers) from apical dominance in oats?

    abstract::The growth of lateral buds (tillers), which are undergoing release from apical dominance, was measured in upright and gravistimulated intact Avena sativa L. cv. ;Victory' (oat) shoots as well as in isolated Avena stem segments treated with kinetin and sucrose. During release, the tiller bud initially shows a slow rate...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Harrison MA,Kaufman PB

    更新日期:1982-09-01 00:00:00

  • The Formation and Distribution of Ice within Forsythia Flower Buds.

    abstract::Differential thermal analysis detected two freezing events when dormant forsythia (Forsythia viridissima Lindl.) flower buds were cooled. The first occurred just below 0 degrees C, and was coincident with the freezing of adjacent woody tissues. The second exotherm appeared as a spike between -10 and -25 degrees C and ...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Ashworth EN

    更新日期:1990-03-01 00:00:00

  • Aluminum resistance in the Arabidopsis mutant alr-104 is caused by an aluminum-induced increase in rhizosphere pH.

    abstract::A mechanism that confers increased Al resistance in the Arabidopsis thaliana mutant alr-104 was investigated. A modified vibrating microelectrode system was used to measure H+ fluxes generated along the surface of small Arabidopsis roots. In the absence of Al, no differences in root H+ fluxes between wild type and alr...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Degenhardt J,Larsen PB,Howell SH,Kochian LV

    更新日期:1998-05-01 00:00:00

  • Developmental regulation of enzymes of sucrose and hexose metabolism in effective and ineffective soybean nodules.

    abstract::Soybean (Glycine max) nodules formed by inoculation with either an effective strain or an ineffective (noninvasive, nodule-forming) strain of Bradyrhizobium japonicum were assayed for changes in developmental patterns of carbon metabolic enzymes of the plant nodule cells. Of the enzyme activities measured, only sucros...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Anthon GE,Emerich DW

    更新日期:1990-02-01 00:00:00

  • Inhibition by fusicoccin of germination of pea seeds.

    abstract::Fusicoccin inhibits the germination of pea (Pisum sativum L. cv Progress 9) seeds by decreasing the growth of the embryonal axis and by stimulating the fresh weight increase of the cotyledons. The growth of isolated embryonal axes in the presence of sucrose and KCl is stimulated by fusicoccin. The effect of fusicoccin...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Lioi L,Petruzzelli L,Morgutti S,Cocucci SM

    更新日期:1984-11-01 00:00:00

  • Preparation and Properties of a beta-d-Glucanase for the Specific Hydrolysis of beta-d-Glucans.

    abstract::A beta-d-glucanase highly specific for glucans containing a linkage sequence ... Glc 1 --> 4 Glc 1 --> 3 Glc 1 --> 4 Glc ... has been isolated from several commercial preparations of Bacillus subtilis alpha-amylase including one purified by repeated crystallization. The beta-d-glucanase will not hydrolyze cellulose or...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Huber DJ,Nevins DJ

    更新日期:1977-08-01 00:00:00

  • Both subunits of the circadian RNA-binding protein CHLAMY1 can integrate temperature information.

    abstract::The circadian RNA-binding protein CHLAMY1 from the green alga Chlamydomonas reinhardtii consists of two subunits named C1 and C3. Changes in the C1 level cause arrhythmicity of the phototaxis rhythm, while alterations in the level of C3 lead to acrophase shifts. Thus, CHLAMY1 is involved in maintaining period and phas...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Voytsekh O,Seitz SB,Iliev D,Mittag M

    更新日期:2008-08-01 00:00:00

  • Induction of lipid metabolic enzymes during the endoplasmic reticulum stress response in plants.

    abstract::The endoplasmic reticulum (ER) stress response is a signal transduction pathway activated by the perturbation of normal ER metabolism. We used the maize (Zea mays) floury-2 (fl2) mutant and soybean (Glycine max) suspension cultures treated with tunicamycin (Tm) to investigate the ER stress response as it relates to ph...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Shank KJ,Su P,Brglez I,Boss WF,Dewey RE,Boston RS

    更新日期:2001-05-01 00:00:00

  • Abscisic acid-induced resistance against the brown spot pathogen Cochliobolus miyabeanus in rice involves MAP kinase-mediated repression of ethylene signaling.

    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

    pub_type: 杂志文章


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

    更新日期:2010-04-01 00:00:00

  • The Effect of Light on the Tricarboxylic Acid Cycle in Green Leaves: II. Intermediary Metabolism and the Location of Control Points.

    abstract::Long term feeding of acetate-2-(14)C, (14)CO(2), citrate-1,5-(14)C, fumarate-2,3-(14)C, and succinate-2,3-(14)C to mung bean (Phaseolus aureus L. var. Mungo) leaves in the dark gave labeling predominantly in tricarboxylic acid cycle intermediates. Kinetics of the intermediates during dark/light/dark transitions showed...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Chapman EA,Graham D

    更新日期:1974-06-01 00:00:00

  • Pathotoxin effects in sorghum are also produced by mercuric chloride treatment.

    abstract::Pathogenic isolates of Periconia circinata produce a host-specific toxin (PC-toxin) and cause a root and crown rot in susceptible genotypes of sorghum. Treatment with PC-toxin leads to selective development of disease symptoms and an increase in synthesis of a group of acidic, low molecular weight proteins only in sus...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Traylor EA,Shore SH,Ransom RF,Dunkle LD

    更新日期:1987-08-01 00:00:00

  • Degradation pattern of photosystem II reaction center protein D1 in intact leaves. The major photoinhibition-induced cleavage site in D1 polypeptide is located amino terminally of the DE loop.

    abstract::Photoinhibition-induced degradation of the D1 protein of the photosystem II reaction center was studied in intact pumpkin (Cucurbita pepo L.) leaves. Photoinhibition was observed to cause the cleavage of the D1 protein at two distinct sites. The main cleavage generated an 18-kD N-terminal and a 20-kD C-terminal degrad...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Kettunen R,Tyystjärvi E,Aro EM

    更新日期:1996-08-01 00:00:00

  • Plant Signaling 2000. Cross talk among geneticists, physiologists, and ecologists.

    abstract::Plants respond in complex ways to their environment, to their internal physiological status, and to the activity of other plants, pathogens, herbivores, and organisms. Plant Signaling 2000, a symposium sponsored by the Penn State Intercollege Graduate Program in Plant Physiology (May 18-20, 2000), explored the machine...

    journal_title:Plant physiology



    authors: Cosgrove DJ,Gilroy S,Kao TH,Ma H,Schultz JC

    更新日期:2000-10-01 00:00:00

  • Calcium Levels Affect the Ability to Immunolocalize Calmodulin to Cortical Microtubules.

    abstract::Calcium affects the stability of cortical microtubules (MTs) in lysed protoplasts. This calmodulin (CaM)-mediated interaction may provide a mechanism that serves to integrate cellular behavior with MT function. To test the hypothesis that CaM associates with these MTs, monoclonal antibodies were produced against CaM, ...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Fisher DD,Cyr RJ

    更新日期:1993-10-01 00:00:00

  • Metabolism under Microaerobic Conditions of Mitochondria from Cowpea Nodules.

    abstract::A method is described for isolating mitochondria from nodules of cowpea (Vigna unguiculata [L.] Walp.) under completely anaerobic conditions. The mitochondria were immediately active when incubated aerobically with substrates, and their respiration rates were higher than mitochondria prepared in air. The mitochondria ...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Rawsthorne S,Larue TA

    更新日期:1986-08-01 00:00:00

  • Early Gravi-Electrical Responses in Bean Epicotyls.

    abstract::The relationship between gravitropism and surface electrical potentials was studied using etiolated epicotyls of adzuki bean (Phaseolus angularis). Early downward curvature (or transient positive gravitropic response) was observed about 1 min after gravistimulation. The downward curvature was closely related to the sp...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Shigematsu H,Toko K,Matsuno T,Yamafuji K

    更新日期:1994-07-01 00:00:00

  • Glycolate stimulation of oxygen evolution during photosynthesis.

    abstract::Glycolate and glyoxylate stimulated 100% to 300% the rate of oxygen evolution by Scenedesmus in the light in the absence of added carbon dioxide. This stimulation occurred either aerobically or anaerobically, and was sensitive to CMU. Aerobic dark respiration was stimulated 25% to 100% by glycolate. This phenomenon wa...

    journal_title:Plant physiology

    pub_type: 杂志文章


    authors: Nelson EB,Tolbert NE,Hess JL

    更新日期:1969-01-01 00:00:00