Polysomes and intracisternal accumulations in enucleate sieve elements of rice (Oryza sativa L.).

abstract：:1. It has been shown that the percentage germination of seed in contact with an aqueous solution depends (a) on the extent of differential permeability of the seed coat to the solute and (b) on whether the solute is toxic. 2. In investigations with "Meteor" pea seeds, polyethylene glycols of nominal molecular weights ...

journal_title：Planta

authors： Manohar MS

更新日期：1966-03-01 00:00:00

abstract：:The effects of growth retardants, 4-hydroxy-5-isopropyl-2-methylphenyltrimethylammonium chloride-1-piperidine carboxylate (AMO-1618 or AMO) and 2-chloroethyltrimethylammonium chloride (CCC), applied with and without gibberellic acid (GA3), on β-[(3)H]alanine uptake and leakage from pea (Pisum sativum L.) and betacyani...

journal_title：Planta

authors： Fabijan DM,Dhindsa PP,Reid DM

更新日期：1981-10-01 00:00:00

abstract：:In order to survive sunlight in the absence of water, desiccation-tolerant green plants need to be protected against photooxidation. During drying of the chlorolichen Cladonia rangiformis and the cyanolichen Peltigera neckeri, chlorophyll fluorescence decreased and stable light-dependent charge separation in reaction ...

journal_title：Planta

authors： Heber U

更新日期：2008-09-01 00:00:00

abstract：:Acid ribonuclease from cotyledons of Pisum sativum is very stable, with a temperature optimum of 65° C. It has a molecular weight of 17,500 and there is evidence that a fragment, with a molecular weight of 3,100, retains enzyme activity. Acid ribonuclease from the cotyledons of five-day old seedlings may be fractionat...

journal_title：Planta

authors： Bryant JA,Greenway SC,West GA

更新日期：1976-01-01 00:00:00

abstract：:Aspartic proteinase (EC 3.4.23) activity plays a pivotal role in the degradation of Theobroma cacao L. seed proteins during the fermentation step of cacao bean processing. Therefore, this enzyme is believed to be critical for the formation of the peptide and amino acid cocoa flavor precursors that occurs during fermen...

journal_title：Planta

authors： Laloi M,McCarthy J,Morandi O,Gysler C,Bucheli P

更新日期：2002-09-01 00:00:00

abstract：:Ectodesmata-like structures, referred to here as mercurous or mercury precipitates (MP) and considered to be identical to precipitates observed after treatment of leaf tissue with Gilson solution for demonstration of ectodesmata, were demonstrated with cuticle enzymatically isolated from Allium bulb scales and leaves ...

journal_title：Planta

authors： Schönherr J,Bukovac MJ

更新日期：1970-09-01 00:00:00

abstract：:During sunflower (Helianthus annuus L.) seed formation there was an active period of lipid biosynthesis between 12 and 28 days after flowering (DAF). The maximum in-vitro acyl-acyl carrier protein (ACP) thioesterase activities (EC 3.1.2.14) were found at 15 DAF, preceding the largest accumulation of lipid in the seed....

journal_title：Planta

authors： Martínez-Force E,Cantisán S,Serrano-Vega MJ,Garcés R

更新日期：2000-10-01 00:00:00

abstract：:During ripening of grape (Vitis vinifera L.) berries, softening occurs concomitantly with the second growth phase of the fruit and involves significant changes in the properties of cell wall polysaccharides. Here, the activities of enzymes that might participate in cell wall modification have been monitored throughout...

journal_title：Planta

authors： Nunan KJ,Davies C,Robinson SP,Fincher GB

更新日期：2001-12-01 00:00:00

abstract：:Some 30% of the reserve material in the fenugreek seed is galactomannan localised in the endosperm; the remainder is mainly protein and lipid in the cotyledons of the embryo. The importance of galactomannan to the germinative physiology of fenugreek has been investigated by comparing intact and endosperm-free seeds. F...

journal_title：Planta

authors： Grant Reid JS,Derek Bewley J

更新日期：1979-12-01 00:00:00

abstract：:The capacity for HCO (3) (-) use by Porphyra leucosticta Thur. in Le Jolis grown at different concentrations of inorganic carbon (C(i)) was investigated. The use of HCO (3) (-) at alkaline pH by P. leucosticta was demonstrated by comparing the O(2) evolution rates measured with the O(2) evolution rates theoretically s...

journal_title：Planta

authors： Mercado JM,Niell FX,Figueroa FL

更新日期：1997-03-01 00:00:00

abstract：:In shoot tip-derived tissue cultures of Scots pine (Pinus sylvestris L.), browning and subsequent degeneration of the culture is accompanied by lipid peroxidation and lignification of cells, which are characteristic features of a plant defense reaction. Since chitinases are enzymes acting primarily in plant defense, t...

journal_title：Planta

authors： Pirttilä AM,Laukkanen H,Hohtola A

更新日期：2002-04-01 00:00:00

abstract：:The responses to synthetic d,l abscisin have been studied in a variety of tests. When fed in aqueous solution continuously to leaves of seedlings growing under long day conditions, d,l abscisin caused the cessation of extension growth and the formation of typical resting-buds in Betula pubescens, Acer pseudoplatanus a...

journal_title：Planta

authors： El-Antably HM,Wareing PF,Hillman J

更新日期：1967-03-01 00:00:00

abstract：:The kinetics and localization of Rb(+) uptake by barley roots were studied as function of the water potential of the medium. At potentials causing plasmolysis, uptake is reduced and becomes restricted to the outer surface of the root. The conclusion is that, at least for Rb(+) in the range of low external concentratio...

journal_title：Planta

authors： van Iren F,Boers-van der Sluijs P

更新日期：1980-03-01 00:00:00

abstract：:Chlamydomonas reinhardtii Dangeard generates photoreceptor currents (PCs) upon light excitation. These currents play a key role in the signal transduction chain for photomotility responses. We have previously found that inhibition of PCs by tryptone occurs only in gametes that display chemotaxis toward this agent, and...

journal_title：Planta

authors： Govorunova EG,Voytsekh OO,Sineshchekov OA

更新日期：2007-01-01 00:00:00

abstract：:The carbon-dioxide response of photosynthesis of leaves of Quercus suber, a sclerophyllous species of the European Mediterranean region, was studied as a function of time of day at the end of the summer dry season in the natural habitat. To examine the response experimentally, a "standard" time course for temperature ...

journal_title：Planta

authors： Tenhunen JD,Lange OL,Gebel J,Beyschlag W,Weber JA

更新日期：1984-09-01 00:00:00

abstract：:Helminthosporol, helminthosporic acid, dihydrohelminthosporic acid, and steviol have been tested for their ability to induce antheridium formation in Anemia phyllitidis. All helminthosporol derivatives posses a limited but real activity. Steviol proved to be inactive.All the substance tested have a significant effect ...

journal_title：Planta

authors： Schraudolf H

更新日期：1967-06-01 00:00:00

abstract：:As an extension of earlier cytophysiological and morphological studies on differentiating cells of Micrasterias denticulata, a fine structural investigation of glutaraldehyde-osmium tetroxide fixed material has been made. Special emphasis has been placed on the distribution of cytoplasmic microtubules and on their pos...

journal_title：Planta

authors： Kiermayer O

更新日期：1968-09-01 00:00:00

abstract：:A β-amylase (EC 3.2.1.2) was identified in the outer pericarp (βP) of developing seeds of wheat (Triticum aestivum L.) and compared with the well known β-amylase which is synthesized during seed development in the starchy endosperm (βE). The enzyme βP already exists in the tissues before anthesis and vanishes at the t...

journal_title：Planta

authors： Daussant J,Laurière C

更新日期：1990-07-01 00:00:00

abstract：:The tertiary sulphonium compound, β-dimethylsulphoniopropionate (DMSP) and the quaternary ammonium compounds glycine betaine and homarine are important osmotica in Platymonas subcordiformis cells. Following hypersaline stresses the compounds were accumulated after a lag period of 3 h and equilibrium concentrations wer...

journal_title：Planta

authors： Dickson DM,Kirst GO

更新日期：1986-04-01 00:00:00

abstract：MAIN CONCLUSION:AtNAP , an Arabidopsis NAC transcription factor family gene, functions as a negative regulator via transcriptional repression of AREB1 in salt stress response. AtNAP is an NAC family transcription factor in Arabidopsis and is known to be a positive regulator of senescence. However, its exact function an...

journal_title：Planta

authors： Seok HY,Woo DH,Nguyen LV,Tran HT,Tarte VN,Mehdi SM,Lee SY,Moon YH

更新日期：2017-02-01 00:00:00

abstract：:Terminal buds of Pinus silvestris L. containing microsporangiate strobilus primordia were collected once a month throughout the winter. The electron microscopic studies indicated that in October and December, the cells of the strobili contained a large number of vacuoles, a portion of which was supposedly autophagic, ...

journal_title：Planta

authors： Kupila-Ahvenniemi S,Pihakaski S,Pihakaski K

更新日期：1978-01-01 00:00:00

abstract：:Rapid mobilisation of storage products, including xyloglucan, in cotyledons of germinating nasturtium (Tropaeolum majus L.) normally starts about 7-8 d after imbibition and growth of the seedling at 20-25° C. Levels of activity of endo-1,4-β-glucanase (EC 3.2.1.4) in cotyledons, as assayed viscometrically with xyloglu...

journal_title：Planta

authors： Hensel A,Brummell DA,Hanna R,Maclachlan G

更新日期：1991-02-01 00:00:00

abstract：MAIN CONCLUSION:β-sitosterol influences amino acids, carbohydrates, organic acids, and other metabolite metabolism and homeostasis largely contributing to better tolerance to water stress in white clover. β-sitosterol (BS) could act as an important plant growth regulator when plants are subjected to harsh environmental...

journal_title：Planta

authors： Li Z,Cheng B,Yong B,Liu T,Peng Y,Zhang X,Ma X,Huang L,Liu W,Nie G

更新日期：2019-12-01 00:00:00

abstract：:Air-grown cells of Porphyridium purpurem contain appreciable carbonic-anhydrase activity, comparable to that in air-grown Chlamydomonas reinhardtii, but activity is repressed in CO2-grown cells. Assay of carbonic-anhydrase activity in intact cells and cell extracts shows all activity to be intracellular in Porphyridiu...

journal_title：Planta

authors： Dixon GK,Patel BN,Merrett MJ

更新日期：1987-12-01 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 α-xylosidase which is involved in the postgerminative mobilisation of xyloglucan in nasturtium seed cotyledons has now been purified to apparent homogeneity by a facile procedure involving lectin affinity chromatography. The purified enzyme, a glycoprotein, moved as a single band (apparent molecular weight 85000) ...

journal_title：Planta

authors： Fanutti C,Gidley MJ,Reid JS

更新日期：1991-04-01 00:00:00

abstract：:The movement of applied (137)Cs and of naturally-assimilated (14)C down the long stolon of Saxifraga is strongly inhibited by confining a length of 10 to 30 cm of the stolon in an atmosphere of nitrogen. The inhibition is reversible, normal transport being restored after less then 4 h when the stolon is returned to ai...

journal_title：Planta

authors： Qureshi FA,Spanner DC

更新日期：1973-06-01 00:00:00

abstract：:Anaerobic conditions completely block the synthesis of carotenoids in Fusarium aquaeduciuum or Neurospora crassa. Even after sufficient illumination of the mycelia in the presence of air, the subsequent production of carotenoids in the dark is suppressed entirely when the fungi are transferred to an oxygen-free atmosp...

journal_title：Planta

authors： Rau W

更新日期：1971-09-01 00:00:00

abstract：:Using partially purified sedoheptulose-1,7-bisphosphatase from spinach (Spinacia oleracea L.) chloroplasts the effects of metabolites on the dithiothreitoland Mg(2+)-activated enzyme were investigated. A screening of most of the intermediates of the Calvin cycle and the photorespiratory pathway showed that physiologic...

journal_title：Planta

authors： Schimkat D,Heineke D,Heldt HW

更新日期：1990-04-01 00:00:00

abstract：MAIN CONCLUSION:This study confirms a high level of metabolic resistance to the herbicide chlorsulfuron, inherited by a single dominant gene in a sorghum genotype (GL-1). Chlorsulfuron, an acetolactate synthase (ALS)-inhibitor, effectively controls post-emergence grass and broadleaf weeds but is not registered for use ...

journal_title：Planta

authors： Pandian BA,Sathishraj R,Prasad PVV,Jugulam M

更新日期：2021-01-23 00:00:00