Spatial and temporal changes in endogenous cytokinins in developing pea roots.

abstract：:The biosynthesis of ethylene was examined in suspension-cultured cells of parsley (Petroselinum hortense) treated with an elicitor from cell walls of Phytophthora megasperma. Untreated cells contained 50 nmol g(-1) of the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (ACC), and produced ethylene at a rate ...

journal_title：Planta

authors： Chappell J,Hahlbrock K,Boller T

更新日期：1984-07-01 00:00:00

abstract：:Light-induced expansion of Phaseolus vulgaris L. leaf cells is accompanied by increased cell-wall plasticity. The possibility that leaf-cell walls are loosened by excreted protons has been investigated. First, light causes acidification, detected at the leaf surface, within 5-15 min. Growth starts 10-20 min after expo...

journal_title：Planta

authors： Van Volkenburgh E,Cleland RE

更新日期：1980-04-01 00:00:00

abstract：:Double B-box 1a (DBB1a) belongs to the zinc-finger family proteins in Arabidopsis thaliana. Transcriptional analysis uncovered that the DBB1a gene expression was blue light-dependently regulated, and the transcript level of DBB1a in cry1cry2 was decreased but not in phyAphyB compared to wild type under blue light cond...

journal_title：Planta

authors： Wang Q,Zeng J,Deng K,Tu X,Zhao X,Tang D,Liu X

更新日期：2011-01-01 00:00:00

abstract：MAIN CONCLUSION:PtrGH9A7, a poplar β-type endo-1,4-β-glucanase gene induced by auxin, promotes both plant growth and lateral root development by enhancing cell expansion. Endo-1,4-β-glucanase (EGase) family genes function in multiple aspects of plant growth and development. Our previous study found that PtrCel9A6, a po...

journal_title：Planta

authors： Yu L,Li Q,Zhu Y,Afzal MS,Li L

更新日期：2018-05-01 00:00:00

abstract：:Developing seeds ofPharbitis nil accumulate free as well as bound gibberellins until a maximum level is reached at approximately 25 days after anthesis. Seeds from CCC-treated parent plants have a strongly reduced level of free as well as bound gibberellins. When different spray reagents were used it was found that tr...

journal_title：Planta

authors： Barendse GW

更新日期：1971-12-01 00:00:00

abstract：:Seeds ofBromus sterilis L. germinated between 80-100% in darkness at 15° C but were inhibited by exposure to white or red light for 8 h per day. Exposure to far-red light resulted in germination similar to, or less than, that of seeds maintained in darkness. Germination is not permanently inhibited by light as seeds a...

journal_title：Planta

authors： Hilton JR

更新日期：1982-11-01 00:00:00

abstract：:The esterification kinetics of chlorophyllide, obtained by a single flash of light, were investigated in etiolated barley ( Hordeum vulgare L.) and oat ( Avena sativa L.) leaves. A rapid phase, leading to esterification of 15% of total chlorophyllide within 15-30 s, was followed by a lag-phase of nearly 2 min and a su...

journal_title：Planta

authors： Domanskii V,Rassadina V,Gus-Mayer S,Wanner G,Schoch S,Rüdiger W

更新日期：2003-01-01 00:00:00

abstract：:Internode segments excised from vegetative stems of Plumbago indica, an absolute short-day plant, can be induced to form in vitro a callus, or roots, or vegetative shoots, or inflorescences and flowers. Callus formation was polarized when indolyl-3-acetic acid, L-tryptophane, naphthylacetamide, or 2,3-dichlorophenylac...

journal_title：Planta

authors： Nitsch C,Nitsch JP

更新日期：1967-12-01 00:00:00

abstract：:Immature zygotic embryos of sunflower (Helianthus annuus L.) produce somatic embryos when cultured on medium supplemented with a cytokinin as the sole source of exogenous growth regulators. The timing of the induction phase and subsequent morphogenic events have been well characterized in previous work. We address her...

journal_title：Planta

authors： Thomas C,Bronner R,Molinier J,Prinsen E,van Onckelen H,Hahne G

更新日期：2002-08-01 00:00:00

abstract：:Homeotic transformation of stamens into pistil-like structures (called pistillody) has been reported in cytoplasmic substitution (alloplasmic) lines of bread wheat (Triticum aestivum) having the cytoplasm of a wild relative species, Aegilops crassa. Our previous studies indicated that pistillody is caused by alteratio...

journal_title：Planta

authors： Saraike T,Shitsukawa N,Yamamoto Y,Hagita H,Iwasaki Y,Takumi S,Murai K

更新日期：2007-12-01 00:00:00

abstract：:The polarity of germinating single-celled spores of the fern Ceratopteris richardii Brogn. is influenced by gravity during a time period prior to the first cellular division designated a "polarity-determination window". After this window closes, control of polarity is seen in the downward (with respect to gravity) mig...

journal_title：Planta

authors： Edwards ES,Roux SJ

更新日期：1998-08-01 00:00:00

abstract：:MicroRNAs (miRNAs) play important regulatory roles in plant development and stress responses. Tomato is an economically important vegetable crop in the world with publicly available genomic information database, but only a limited number of tomato miRNAs have been identified. In this study, two independent small RNA l...

journal_title：Planta

authors： Feng J,Liu S,Wang M,Lang Q,Jin C

更新日期：2014-12-01 00:00:00

abstract：:The dynamics of actin-filament organization in pollen-tube subprotoplasts ofNicotiana tabacum L. cv. Samsun during regeneration and outgrowth was examined using phalloidin probes and a non-fixation method. A succession of actin arrays was examined during subprotoplast regeneration that strongly resembled the actin dyn...

journal_title：Planta

authors： Rutten TL,Derksen J

更新日期：1990-03-01 00:00:00

abstract：:After sowing, mustard (Sinapis alba L.) seedlings were grown for 48 h in white light (25°C). These fully de-etiolated, green seedlings were used as experimental material between 48 and 72 h after sowing to study the control by phytochrome (Pfr) of hypocotyl elongation after a white light→dark transition. It was found ...

journal_title：Planta

authors： Wildermann A,Drumm H,Schäfer E,Mohr H

更新日期：1978-01-01 00:00:00

abstract：:The kinetics of the intracellular redistribution of phytochrome (sequestering) in Avena sativa L. coleoptiles following a brief, saturating actinic pulse of red (R) light have been determined. Immunocytochemical labelling of phytochrome with monoclonal antibodies showed that at 22°C sequestering can occur within 1-2 s...

journal_title：Planta

authors： McCurdy DW,Pratt LH

更新日期：1986-03-01 00:00:00

abstract：:Out of 33 strains of unicellular algae examined, H2 evolution was observed only in species of Chlamydomonas, Chlorella and Scenedesmus. While the photoevolution of H2 by these algae was generally stimulated both by an organic substrate and by the uncoupler CCCP(1), response to DCMU varied. On the basis of the response...

journal_title：Planta

authors： Healey FP

更新日期：1970-09-01 00:00:00

abstract：:The lignification process in mature Norway spruce [ Picea abies (L.) H. Karsten] xylem cell walls was studied using transmission electron microscopy (TEM)-immunogold detection with a polyclonal antibody raised against a specific lignin substructure, dibenzodioxocin. The study reveals for the first time the exact locat...

journal_title：Planta

authors： Kukkola EM,Koutaniemi S,Gustafsson M,Karhunen P,Ruel K,Lundell TK,Saranpää P,Brunow G,Teeri TH,Fagerstedt KV

更新日期：2003-06-01 00:00:00

abstract：:We have investigated whether sucrose accumulation in heterotrophic cell-suspension cultures of Chenopodium rubrum L. is regulated by a cycle in which sucrose is simultaneously synthesised and degraded. Net sucrose accumulation was measured by monitoring the sucrose content, unidirectional synthesis was monitored by su...

journal_title：Planta

authors： Dancer J,Hatzfeld WD,Stitt M

更新日期：1990-09-01 00:00:00

abstract：MAIN CONCLUSION:Coleoptera, the largest and the most diverse Insecta order, is characterized by multiple adaptations to plant feeding. Insect-associated microorganisms can be important mediators and modulators of interactions between insects and plants. Interactions between plants and insects are highly complex and inv...

journal_title：Planta

authors： Wielkopolan B,Obrępalska-Stęplowska A

更新日期：2016-08-01 00:00:00

abstract：:'Warm white' fluorescent light inhibited the elongation of potato sprouts and reduced the rate at which reserve materials in the mother tuber were mobilized. The evidence indicated that the influence of light on mobilization was independent of light effects on the magnitude of the 'sink' for translocates in the sprout...

journal_title：Planta

authors： Morris DA

更新日期：1967-09-01 00:00:00

abstract：:Cotton fibers are single elongated cells that develop from epidermal cells of the ovule. The chronology of fiber differentiation was investigated using cultured ovules. Epidermal cells differentiate into fiber cells approx. 3 d before anthesis. When ovules were cultured on a defined medium, fiber growth could be initi...

journal_title：Planta

authors： Graves DA,Stewart JM

更新日期：1988-08-01 00:00:00

abstract：:The concentration of cytoplasmic free calcium ([Ca(2+)](cyt)) required to close higher plant plasmodesmata was investigated using corn (Zea mays L. cv. Black Mexican Sweet) suspension-culture cells. Physiological elevations of [Ca(2+)](cyt) were applied by cold treatment, and ion injection was also used to increase [C...

journal_title：Planta

authors： Holdaway-Clarke TL,Walker NA,Hepler PK,Overall RL

更新日期：2000-01-01 00:00:00

abstract：:When radioactive gibberellin A5 ((3)H-GA5) was applied to the apices and surrounding young leaves of the long-day plant Silene armeria, it was partially converted to at least two other acidic substances. One of them was similar to GA3 in chromatographic, but not in biological properties. The other metabolite was more ...

journal_title：Planta

authors： van den Ende H,Zeevaart JA

更新日期：1971-06-01 00:00:00

abstract：:The role of phloem anastomoses in translocation was studied experimentally in intact and wounded internodes ofDahlia pinnata Cav. Translocation was visualized with fluorescein, a fluorescent dye capable of movement in the phloem. Translocation was analyzed in large areas of living phloem tissue which were peeled from ...

journal_title：Planta

authors： Aloni R,Peterson CA

更新日期：1990-11-01 00:00:00

abstract：:Preparations of rapidly labelled RNA are usually heavily contaminated by rapidly labelled low molecular weight components. This contaminating fraction mainly contains nucleoside triphosphates, as previously reported, but also nucleoside tetra, penta and hexaphosphates. These highly phosphorylated nucleosides are, acco...

journal_title：Planta

authors： Aspart-Pascot L,Delseny M,Guitton Y

更新日期：1976-01-01 00:00:00

abstract：:Light-induced absorbance changes (LIACs), which are associated with early photochemical events of blue-light transduction, were detected in growing zones of Phycomyces sporangiophores. The novel LIACs meet all the essential requirements for a spectrophotometric photoreceptor assay which was previously unavailable for ...

journal_title：Planta

authors： Schmidt W,Galland P

更新日期：1999-04-01 00:00:00

abstract：:In the past 30 years enormous progress was made in plant membrane biology and transport physiology, a fact reflected in the appearance of textbooks. The first book dedicated to 'Membrane Transport in Plants' was published on the occasion of the 'International Workshop on Membrane Transport in Plants' held at the Nucle...

journal_title：Planta

authors： Hedrich R,Marten I

更新日期：2006-09-01 00:00:00

abstract：:Dark-grown radish seedlings (Raphanus sativus L.) were sprayed with 10(-3) mol·l(-1) 2,4-dichlorophenoxyacetic acid and then were exposed to a 14:10 light: dark cycle. Cotyledon samples from these seedlings and unsprayed controls were taken for electron microscopy, chlorophyll determinations, and photosynthetic rate m...

journal_title：Planta

authors： Nadakavukaren MJ,McCracken DA

更新日期：1977-01-01 00:00:00

abstract：:Sieve tube "slime" is probably fibrillar as suggested by other workers. The granular material seen in electron micrographs of sieve tubes "fixed" with potassium permanganate is mostly a precipitate produced by the reaction of the permanganate with the sieve tube contents, particularly with sucrose, and with reagents u...

journal_title：Planta

authors： Johnson RP

更新日期：1966-03-01 00:00:00

abstract：:Anthocyanin formation in 36h dark grown Sinapis alba L. seedlings and inhibition of hypocotyl elongation in 36h and 54h dark grown and 54h and 7 day light grown seedlings in response to continuous red light could be substituted for by hourly 5 min light pulses where the total fluence over the irradiation period is the...

journal_title：Planta

authors： Schäfer E,Beggs CJ,Fukshansky L,Holmes MG,Jabben M

更新日期：1981-11-01 00:00:00