Cytokinin and inhibitor activities in the avocado fruit mesocarp.

Abstract:

:No cytokinin activity was found in methanolic mesocarp extracts after purification with petroleum ether and ethyl acetate. Cytokinin activity did appear, however, in aqueous fraction after acid hydrolysis or passage through Dowex 50 (H(+)) ion exchange columns. The level of this activity, the fruit growth rate, and the cell division rate were found to be positively correlated (with each other).An inhibitor to cytokinin activity in soybean callus bioassay was found in the petroleum ether fraction; this inhibitor is not abscisic acid. The activity of the inhibitor could be considerably reduced by raising the level of kinetin in the nutrient medium. The intensity of inhibition was found to be positively correlated with reduction in the rate of mesocarp growth.The reduction in fruit growth rate may be considered to be due to the diminution of bound cytokinin activity and (or) increased activity of an endogenous inhibitor.

journal_name

Plant Physiol

journal_title

Plant physiology

authors

Gazit S,Blumenfeld A

doi

10.1104/pp.46.2.334

subject

Has Abstract

pub_date

1970-08-01 00:00:00

pages

334-6

issue

2

eissn

0032-0889

issn

1532-2548

journal_volume

46

pub_type

杂志文章
  • The culture of plant cells with ammonium salts as the sole nitrogen source.

    abstract::Soybean cell suspension cultures grew on defined media with ammonium as the sole nitrogen source if Krebs cycle acids were added. Satisfactory growth was obtained with ammonium salts of citrate, malate, fumarate, or succinate, when compared with the regular medium containing nitrate and ammonium. Little or no growth o...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.45.5.598

    authors: Gamborg OL,Shyluk JP

    更新日期:1970-05-01 00:00:00

  • Effect of temperature on water and ion transport in soybean and broccoli systems.

    abstract::Steady-state flow rates and exudate osmotic potentials were measured from complete root systems from warm- (28/23 C) or cold-(17/11 C) grown soybean or broccoli (Brassica oleracea) plants at various pressures or different temperatures.In warm-grown soybean roots systems, a break occurred at 14.7 C in the Arrhenius plo...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.64.1.83

    authors: Markhart AH,Fiscus EL,Naylor AW,Kramer PJ

    更新日期:1979-07-01 00:00:00

  • Purification and Characterization of Two Forms of Glutamine Synthetase from the Pedicel Region of Maize (Zea mays L.) Kernels.

    abstract::Maize (Zea mays L.) kernel pedicels, including vascular tissues, pedicel parenchyma, placento-chalazal tissue, and the surrounding pericarp, contained two forms of glutamine synthetase (EC 6.3.1.2), separable by anion exchange chromatography under mildly acidic conditions. The earlier-eluting activity (GS(p1)), but no...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.91.3.868

    authors: Muhitch MJ

    更新日期:1989-11-01 00:00:00

  • A water-soluble chlorophyll protein in cauliflower may be identical to BnD22, a drought-induced, 22-kilodalton protein in rapeseed.

    abstract::A water-soluble chlorophyll protein (WSCP) in cauliflower (Brassica oleracea L.) was purified and its N-terminal sequence was determined. Forty-six of 48 residues of the sequence completely matched those of the drought-induced 22-kD protein (BnD22) in rapeseed (Brassica napus L.). All 40 sequenced residues of WSCP fro...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.115.2.841

    authors: Nishio N,Satoh H

    更新日期:1997-10-01 00:00:00

  • CO(2) Metabolism in Corn Roots. I. Kinetics of Carboxylation and Decarboxylation.

    abstract::The kinetics of (14)CO(2) carboxylation and decarboxylation in corn root tips were determined to ascertain the sequence of product formation and subsequent utilization, and to obtain further evidence to predict the enzymes mediating the carboxylation and decarboxylations. The carboxylation data indicated that the firs...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.42.5.712

    authors: Ting IP,Dugger WM

    更新日期:1967-05-01 00:00:00

  • Steps linking the photosynthetic light reactions to the biological clock require calcium.

    abstract::The effect of modifying calcium concentration on the expression of the photosynthesis circadian rhythm was examined in Euglena gracilis, Klebs strain Z. Expression of the oxygen evolution rhythm required the presence of both extracellular and intracellular calcium. Several treatments were found to uncouple the rate of...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.93.1.110

    authors: Lonergan TA

    更新日期:1990-05-01 00:00:00

  • Acclimation of Photosynthetic Light Reactions during Induction of Inorganic Carbon Accumulation in the Green Alga Chlamydomonas reinhardtii.

    abstract::Cells of the unicellular green algae Chlamydomonas reinhardtii were grown in high dissolved inorganic carbon (DIC) concentrations (supplied with 50 milliliters per liter CO(2)[g]) and transferred to low DIC concentrations (supplied with

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.94.1.357

    authors: Palmqvist K,Sundblad LG,Wingsle G,Samuelsson G

    更新日期:1990-09-01 00:00:00

  • Isolation and Characterization of the Multiple 7S Globulins of Soybean Proteins.

    abstract::Two major proteins (the 7S and 11S globulins) of soybean (Glycine max) were simultaneously isolated by a simple method based on their different solubilities in dilute tris (hydroxymethyl) aminomethane buffers. The purified 7S globulins, which represented essentially the entire 7S soybean protein fraction capable of di...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.56.1.19

    authors: Thanh VH,Okubo K,Shibasaki K

    更新日期:1975-07-01 00:00:00

  • The Azolla-Anabaena azollae Relationship : XI. PHYCOBILIPROTEINS IN THE ACTION SPECTRUM FOR NITROGENASE-CATALYZED ACETYLENE REDUCTION.

    abstract::Visible absorption spectra are presented for the Azolla caroliniana Willd.-Anabaena azollae Strass. association and the individual partners. Although absorption by the phycobiliproteins of the endophytic cyanobacterium clearly complements the absorption by the fern pigments, their contribution to the absorption spectr...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.68.6.1479

    authors: Tyagi VV,Ray TB,Mayne BC,Peters GA

    更新日期:1981-12-01 00:00:00

  • Sequential changes in the lipids of developing proplastids isolated from green maize leaves.

    abstract::Changes in lipid composition were followed as a proplastid develops into a chloroplast. Methods were devised for the isolation of developing proplastids from sections of five different ages from the same 7-day-old maize (Zea mays var. Kelvedon Glory) leaf. Electron micrographs illustrate the homogeneity of the five ty...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.57.5.789

    authors: Leese BM,Leech RM

    更新日期:1976-05-01 00:00:00

  • Overexpression of the FAD3 desaturase gene in a mutant of Arabidopsis.

    abstract::A mutant of Arabidopsis contained increased levels of 18:3 fatty acids and correspondingly decreased levels of 18:2. The fatty acid phenotype was strongly expressed in root and seed tissues and this observation, together with other data, suggested that the mutation leads to increased activity of the endoplasmic reticu...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.114.4.1533

    authors: Shah S,Xin Z,Browse J

    更新日期:1997-08-01 00:00:00

  • Native and artificial reticuloplasmins co-accumulate in distinct domains of the endoplasmic reticulum and in post-endoplasmic reticulum compartments.

    abstract::We compared the subcellular distribution of native and artificial reticuloplasmins in endosperm, callus, and leaf tissues of transgenic rice (Oryza sativa) to determine the distribution of these proteins among endoplasmic reticulum (ER) and post-ER compartments. The native reticuloplasmin was calreticulin. The artific...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:

    authors: Torres E,Gonzalez-Melendi P,Stöger E,Shaw P,Twyman RM,Nicholson L,Vaquero C,Fischer R,Christou P,Perrin Y

    更新日期:2001-11-01 00:00:00

  • Defects in a new class of sulfate/anion transporter link sulfur acclimation responses to intracellular glutathione levels and cell cycle control.

    abstract::We previously identified a mutation, suppressor of mating type locus3 15-1 (smt15-1), that partially suppresses the cell cycle defects caused by loss of the retinoblastoma tumor suppressor-related protein encoded by the MAT3 gene in Chlamydomonas reinhardtii. smt15-1 single mutants were also found to have a cell cycle...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.114.251009

    authors: Fang SC,Chung CL,Chen CH,Lopez-Paz C,Umen JG

    更新日期:2014-12-01 00:00:00

  • Iron deficiency-induced secretion of phenolics facilitates the reutilization of root apoplastic iron in red clover.

    abstract::Phenolic compounds are frequently reported to be the main components of root exudates in response to iron (Fe) deficiency in Strategy I plants, but relatively little is known about their function. Here, we show that removal of secreted phenolics from the root-bathing solution almost completely inhibited the reutilizat...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.107.095794

    authors: Jin CW,You GY,He YF,Tang C,Wu P,Zheng SJ

    更新日期:2007-05-01 00:00:00

  • AtKC1 and CIPK23 Synergistically Modulate AKT1-Mediated Low-Potassium Stress Responses in Arabidopsis.

    abstract::In Arabidopsis (Arabidopsis thaliana), the Shaker K(+) channel AKT1 conducts K(+) uptake in root cells, and its activity is regulated by CBL1/9-CIPK23 complexes as well as by the AtKC1 channel subunit. CIPK23 and AtKC1 are both involved in the AKT1-mediated low-K(+) (LK) response; however, the relationship between the...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.15.01493

    authors: Wang XP,Chen LM,Liu WX,Shen LK,Wang FL,Zhou Y,Zhang Z,Wu WH,Wang Y

    更新日期:2016-04-01 00:00:00

  • Functional Promiscuity of Two Divergent Paralogs of Type III Plant Polyketide Synthases.

    abstract::Plants effectively defend themselves against biotic and abiotic stresses by synthesizing diverse secondary metabolites, including health-protective flavonoids. These display incredible chemical diversity and ubiquitous occurrence and confer impeccable biological and agricultural applications. Chalcone synthase (CHS), ...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.16.00003

    authors: Pandith SA,Dhar N,Rana S,Bhat WW,Kushwaha M,Gupta AP,Shah MA,Vishwakarma R,Lattoo SK

    更新日期:2016-08-01 00:00:00

  • Induced beta-carotene synthesis driven by triacylglycerol deposition in the unicellular alga dunaliella bardawil

    abstract::Under stress conditions such as high light intensity or nutrient starvation, cells of the unicellular alga Dunaliella bardawil overproduce beta-carotene, which is accumulated in the plastids in newly formed triacylglycerol droplets. We report here that the formation of these sequestering structures and beta-carotene a...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.116.4.1239

    authors: Rabbani S,Beyer P,Lintig J,Hugueney P,Kleinig H

    更新日期:1998-04-01 00:00:00

  • Dissociation of polysome aggregates by protease k.

    abstract::Apparent large size-classes of zein-synthesizing polysomes from developing kernels of Zea mays L. were converted to smaller polysomes after treatment with Protease K. The reduction in polysome size was not a result of ribonuclease activity, inasmuch as the enzyme did not affect the free polysomes or the size of the mR...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.60.4.482

    authors: Larkins BA,Tsai CY

    更新日期:1977-10-01 00:00:00

  • Ribulose 1,5-bisphosphate and activation of the carboxylase in the chloroplast.

    abstract::Ribulose 1,5-bisphosphate in the chloroplast has been suggested to regulate the activity of the ribulose bisphosphate carboxylase/oxygenase. To generate high levels of ribulose bisphosphate, isolated and intact spinach chloroplasts were illuminated in the absence of CO(2). Under these conditions, chloroplasts generate...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.68.1.252

    authors: Sicher RC,Hatch AL,Stumpf DK,Jensen RG

    更新日期:1981-07-01 00:00:00

  • Cinnamate:CoA ligase initiates the biosynthesis of a benzoate-derived xanthone phytoalexin in Hypericum calycinum cell cultures.

    abstract::Although a number of plant natural products are derived from benzoic acid, the biosynthesis of this structurally simple precursor is poorly understood. Hypericum calycinum cell cultures accumulate a benzoic acid-derived xanthone phytoalexin, hyperxanthone E, in response to elicitor treatment. Using a subtracted comple...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.112.204180

    authors: Gaid MM,Sircar D,Müller A,Beuerle T,Liu B,Ernst L,Hänsch R,Beerhues L

    更新日期:2012-11-01 00:00:00

  • Nicotine Biosynthetic Enzyme Activities in Nicotiana tabacum L. Genotypes with Different Alkaloid Levels.

    abstract::Young plants of five Nicotiana tabacum L. genotypes were examined for activity of nicotine biosynthetic enzymes. Genotypes near isogenic except at two loci each with two alleles controlling nicotine level were used in a comparison of the four homozygous allelic combinations producing high, high intermediate, low inter...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.64.2.236

    authors: Saunders JW,Bush LP

    更新日期:1979-08-01 00:00:00

  • Chlorophyll a Fluorescence Predicts Total Photosynthetic Electron Flow to CO(2) or NO(3)/NO(2) under Transient Conditions.

    abstract::A model which predicts total photosynthetic electron flow from a linear regression of the relationship between corrected steady-state quantum yield and nonphotochemical quenching (E Weis, JA Berry [1987] Biochem Biophys Acta 894: 198-208) was formulated for N-limited cells of the green alga Selenastrum minutum. Unlike...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.91.1.331

    authors: Holmes JJ,Weger HG,Turpin DH

    更新日期:1989-09-01 00:00:00

  • Comparative cross-species alternative splicing in plants.

    abstract::Alternative splicing (AS) can add significantly to genome complexity. Plants are thought to exhibit less AS than animals. An algorithm, based on expressed sequence tag (EST) pairs gapped alignment, was developed that takes advantage of the relatively small intron and exon size in plants and directly compares pairs of ...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.107.098640

    authors: Ner-Gaon H,Leviatan N,Rubin E,Fluhr R

    更新日期:2007-07-01 00:00:00

  • fhy3-1 retains inductive responses of phytochrome A.

    abstract::The fhy3 mutation of Arabidopsis impairs phytochrome A (phyA)-mediated inhibition of hypocotyl growth without affecting the levels of phyA measured spectrophotometrically or immunochemically. We investigated whether the fhy3-1 mutation has similar effects on very low fluence responses (VLFR) and high irradiance respon...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.123.1.235

    authors: Yanovsky MJ,Whitelam GC,Casal JJ

    更新日期:2000-05-01 00:00:00

  • Regulation of Assimilatory Sulfate Reduction by Herbicide Safeners in Zea mays L.

    abstract::Effects of the herbicide safeners N,N-diallyl-2,2-dichloroacetamide and 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzooxazin (CGA 154281) on the contents in cysteine and glutathione, on the assimilation of (35)SO(4) (2-), and on the enzymes of assimilatory sulfate reduction were analyzed in roots and primary leave...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.94.4.1808

    authors: Farago S,Brunold C

    更新日期:1990-12-01 00:00:00

  • Piperonylic acid, a selective, mechanism-based inactivator of the trans-cinnamate 4-hydroxylase: A new tool to control the flux of metabolites in the phenylpropanoid pathway

    abstract::Piperonylic acid (PA) is a natural molecule bearing a methylenedioxy function that closely mimics the structure of trans-cinnamic acid. The CYP73A subfamily of plant P450s catalyzes trans-cinnamic acid 4-hydroxylation, the second step of the general phenylpropanoid pathway. We show that when incubated in vitro with ye...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.118.1.209

    authors: Schalk M,Cabello-Hurtado F,Pierrel MA,Atanossova R,Saindrenan P,Werck-Reichhart D

    更新日期:1998-09-01 00:00:00

  • Comparative analysis of SET domain proteins in maize and Arabidopsis reveals multiple duplications preceding the divergence of monocots and dicots.

    abstract::Histone proteins play a central role in chromatin packaging, and modification of histones is associated with chromatin accessibility. SET domain [Su(var)3-9, Enhancer-of-zeste, Trithorax] proteins are one class of proteins that have been implicated in regulating gene expression through histone methylation. The relatio...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.102.013722

    authors: Springer NM,Napoli CA,Selinger DA,Pandey R,Cone KC,Chandler VL,Kaeppler HF,Kaeppler SM

    更新日期:2003-06-01 00:00:00

  • Short-Term Regulation of Crassulacean Acid Metabolism Activity in a Tropical Hemiepiphyte, Clusia uvitana.

    abstract::Diel courses of net CO2 exchange of leaves were studied in Clusia uvitana (Clusiaceae), a tropical Crassulacean acid metabolism (CAM) hemiepiphyte, growing in the crown of a 47-m tall kapok tree on Barro Colorado Island, Panama. Measurements on days without precipitation showed that net uptake of atmospheric CO2 occur...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.102.3.835

    authors: Zotz G,Winter K

    更新日期:1993-07-01 00:00:00

  • Chloroplast NADPH-thioredoxin reductase interacts with photoperiodic development in Arabidopsis.

    abstract::Chloroplast NADPH-thioredoxin reductase (NTRC) belongs to the thioredoxin systems that control crucial metabolic and regulatory pathways in plants. Here, by characterization of T-DNA insertion lines of NTRC gene, we uncover a novel connection between chloroplast thiol redox regulation and the control of photoperiodic ...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.108.133777

    authors: Lepistö A,Kangasjärvi S,Luomala EM,Brader G,Sipari N,Keränen M,Keinänen M,Rintamäki E

    更新日期:2009-03-01 00:00:00

  • Quantifying Apoplastic Flux through Red Pine Root Systems Using Trisodium, 3-hydroxy-5,8,10-pyrenetrisulfonate.

    abstract::The fluorescent compound trisodium, 3-hydroxy-5,8,10-pyrenetrisulfonate (PTS) was used to quantify the apoplastic flux through red pine (Pinus resinosa Ait.) root systems-that portion of the total water flux reaching the xylem without ever crossing a semipermeable membrane. Flow was induced by pressure through detoppe...

    journal_title:Plant physiology

    pub_type: 杂志文章

    doi:10.1104/pp.77.1.21

    authors: Hanson PJ,Sucoff EI,Markhart AH

    更新日期:1985-01-01 00:00:00