Identification of a transcription factor specifically expressed at the onset of leaf senescence.

abstract：:The endosperm of Euphorbia lagascae Spreng. seeds contains high levels of the epoxidated fatty acid vernolic acid ( cis-12-epoxyoctadeca-cis-9-enoic acid). To obtain transgenic oilcrops producing high levels of vernolic acid, better knowledge of its endogenous metabolism is needed. In this paper we study the gene acti...

journal_title：Planta

authors： Edqvist J,Farbos I

更新日期：2002-05-01 00:00:00

abstract：:Lipid synthesis was studied in successive leaf sections from the base to the tip of developing barley (Hordeum vulgare L.), maize (Zea mays L.), rye grass (Lolium perenne L.) and wheat (Triticum aestivum L.) leaves. The endogenous levels of acyl lipids and their constituent fatty acids from the same leaf sections were...

journal_title：Planta

authors： Bolton P,Harwood JL

更新日期：1978-01-01 00:00:00

abstract：:Two lectins were purified by affinity chromatography from mature peanut (Arachis hypogaea L.) nodules, and compared with the previously characterised seed lectin of this plant. One of the nodule lectins was similar to the seed lectin in its molecular weight and amino-acid composition and ability to bind derivatives of...

journal_title：Planta

authors： Law IJ,Haylett T,Strijdom BW

更新日期：1988-11-01 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 expression pattern of the salT gene was analyzed in different cell types and organs of rice (Oryza sativa L.) in response to saline and hormonal treatments to obtain detailed information on the physiological cues controlling gene expression. Gel blot analysis of RNA and in-situ hybridization performed on seedlings...

journal_title：Planta

authors： Garcia AB,Engler Jde A,Claes B,Villarroel R,Van Montagu M,Gerats T,Caplan A

更新日期：1998-12-01 00:00:00

abstract：:Chlorophyll fluorescence emission at 680 nm (F680) and the rate of CO2 fixation were measured simultaneously in sections along the length of wheat and maize leaves. These leaves possess a basal meristem and show a gradation in development towards the leaf tip. The redox state of the primary electron acceptor, Q, of ph...

journal_title：Planta

authors： Ireland CR,Baker NR,Long SP

更新日期：1985-09-01 00:00:00

abstract：:Fine-structural investigations of 24 monocotyledons from 21 families and all but one order succeeded in revealing a plastid with cuneate proteinaceous inclusion bodies as being typical of monocot sieve-tubes. Inclusion bodies originate in large numbers during plastid differentiation; they concentrate in the matrix and...

journal_title：Planta

authors： Behnke HD

更新日期：1968-06-01 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：:Oilseed rape (Brassica napus L.) needs very high nitrogen fertilizer inputs. Significant amounts of this nitrogen are lost during early leaf shedding and are a source of environmental and economic concern. The objective of this study was to investigate whether the remobilization of leaf amino acids could be limiting f...

journal_title：Planta

authors： Tilsner J,Kassner N,Struck C,Lohaus G

更新日期：2005-06-01 00:00:00

abstract：:Embryos derived in vitro from isolated microspores of Brassica napus L. were compared with their zygotic counterparts. Parameters investigated included storage-protein accumulation and gene expression, fattyacid composition, storage-lipid biosynthesis, and the appearance of oil-body proteins. The microspore embryos ac...

journal_title：Planta

authors： Taylor DC,Weber N,Underhill EW,Pomeroy MK,Keller WA,Scowcroft WR,Wilen RW,Moloney MM,Holbrook LA

更新日期：1990-04-01 00:00:00

abstract：:This study tests the hypothesis that red-leaved gametophytes of the liverwort Jamesoniella colorata (Lehm.) Schiffn., which are found in relatively dry habitats, are more desiccation tolerant than their green counterparts, which are found in moister environments, through superior photoprotective systems. The potential...

journal_title：Planta

authors： Hooijmaijers CA

更新日期：2008-05-01 00:00:00

abstract：:Plastids of Cuscuta reflexa Roxb., C. subinclusa D. et H., C. gronovii Willd. and C. campestris Yunck. possess thylakoids and contain both chlorophyll a and b in a ratio similar to that of stem tissue of the systematically closely related but 'normal' green Ipomoea tricolor. In contrast, plastids of C. odorata R. et P...

journal_title：Planta

authors： van der Kooij TA,Krause K,Dörr I,Krupinska K

更新日期：2000-04-01 00:00:00

abstract：MAIN CONCLUSION:Circular RNAs (circRNAs) identification, expression profiles, and construction of circRNA-parental gene relationships and circRNA-miRNA-mRNA ceRNA networks indicate that circRNAs are involved in flag leaf senescence of rice. Circular RNAs (circRNAs) are a class of 3'-5' head-to-tail covalently closed no...

journal_title：Planta

authors： Huang X,Zhang H,Guo R,Wang Q,Liu X,Kuang W,Song H,Liao J,Huang Y,Wang Z

更新日期：2021-01-07 00:00:00

abstract：MAIN CONCLUSION:Loss of function mutation of rice OsACOS12 impairs lipid metabolism-mediated anther cuticle and pollen wall formation, and interferes with tapetum programmed cell death, leading to male sterility. Acyl-CoA Synthetase (ACOS) is one of the enzymes activating fatty acids for various metabolic functions in ...

journal_title：Planta

authors： Yang X,Liang W,Chen M,Zhang D,Zhao X,Shi J

更新日期：2017-07-01 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 possible mechanism which leads to inactivation phenomena at high intensities of blue light during the color-sensitive phase in the time course of the Hill reaction was investigated in more detail. The following results were obtained: a) The inhibition of the Hill reaction is also observed during but not prior to t...

journal_title：Planta

authors： Harnischfeger G

更新日期：1972-12-01 00:00:00

abstract：:Freeze-etch observations of protoplasts isolated from tobacco (Nicotiana tabacum L.) mesophyll tissue and tomato (Lycopersicum esculentum Mill.) fruit locule tissue are described which clarify earlier observations (Burgess, J., Fleming, E.N., Planta 131, 173-178, 1976; Planta 133, 267-273, 1977), obtained using scanni...

journal_title：Planta

authors： Willison JH,Grout BW

更新日期：1978-01-01 00:00:00

abstract：:14C-IAA was applied to decapitated Coleus 5th internodes. Sections were radioautographed at various intervals after the application. The location of the label within cells and tissues is discussed. No accumulation of label occurred in the region where xylem cells regenerated. Label was particularly associated with xyl...

journal_title：Planta

authors： Gee H

更新日期：1972-03-01 00:00:00

abstract：:In several plant species, ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activase consists of two isoforms that are produced by alternative splicing of a pre-mRNA. Two forms of activase corresponding to the longer, redox-regulated alpha and the shorter, beta forms were detected immunologically in cotton (Go...

journal_title：Planta

authors： Salvucci ME,van de Loo FJ,Stecher D

更新日期：2003-03-01 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：:Changes in the quantities of free and membrane-bound ribosomes were followed in the cotyledons of developing seeds. During the phase of storage protein synthesis, free and membrane bound ribosomes do not interchange, and as both classes synthesise protein in vivo, it is possible that they may synthesise different grou...

journal_title：Planta

authors： Payne PI,Bouter D

更新日期：1969-09-01 00:00:00

abstract：MAIN CONCLUSION:Plant tissue culture has been used for conservation, micropropagation, and in planta overproduction of some pharma molecules of medicinal plants. New biotechnology-based breeding methods such as targeted genome editing methods are able to create custom-designed medicinal plants with different secondary ...

journal_title：Planta

authors： Niazian M

更新日期：2019-04-01 00:00:00

abstract：:The enzymes gibberellin (GA) 20-oxidase and 3-oxidase are major sites of regulation in GA biosynthesis. We have characterised one member of each of the gene families encoding these enzymes that are highly expressed in elongating stems and in developing and germinating grains of wheat and are therefore likely to have p...

journal_title：Planta

authors： Appleford NE,Evans DJ,Lenton JR,Gaskin P,Croker SJ,Devos KM,Phillips AL,Hedden P

更新日期：2006-02-01 00:00:00

abstract：:Diseases of agricultural crops are caused by pathogens from several higher-order phylogenetic lineages including fungi, straminipila, eubacteria, and metazoa. These pathogens are commonly managed with pesticides due to the lack of broad-spectrum host resistance. Gastrodia anti-fungal protein (GAFP; gastrodianin) may p...

journal_title：Planta

authors： Cox KD,Layne DR,Scorza R,Schnabel G

更新日期：2006-11-01 00:00:00

abstract：:Although Arabidopsis is an important system for studying root physiology, the localized growth patterns of its roots have not been well defined, particularly during tropic responses. In order to characterize growth rate profiles along the apex of primary roots of Arabidopsis thaliana (L.) Heynh (ecotype Columbia) we a...

journal_title：Planta

authors： Mullen JL,Ishikawa H,Evans ML

更新日期：1998-11-01 00:00:00

abstract：:Plastoglobules are lipid droplets present in all plastid types. In chloroplasts, they are connected to the thylakoid membrane by the outer lipid half-bilayer. The plastoglobule core is composed of neutral lipids most prominently the prenylquinones, triacylglycerols, fatty acid phytyl esters but likely also unknown com...

journal_title：Planta

authors： Besagni C,Kessler F

更新日期：2013-02-01 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：:Sugar-synthesis and -transport patterns were analyzed in Coleus blumei Benth. leaves to determine where galactinol, raffinose, and stachyose are made and whether phloem loading includes an apoplastic (extracellular) step or occurs entirely within the symplast (plasmodesmata-connected cytoplasm). To clarify the sequenc...

journal_title：Planta

authors： Turgeon R,Gowan E

更新日期：1992-06-01 00:00:00

abstract：:The hydraulic conductivities of excised whole root systems of wheat (Triticum aestivum L. cv. Atou) and of single excised roots of wheat and maize (Zea mays L. cv. Passat) were measured using an osmotically induced back-flow technique. Ninety minutes after excision the values for single excised roots ranged from 1.6·1...

journal_title：Planta

authors： Jones H,Leigh RA,Wyn Jones RG,Tomos AD

更新日期：1988-04-01 00:00:00

abstract：MAIN CONCLUSION:Jasmonic acid positively modulates vitamin E accumulation, but the latter can also partly influence the capacity to accumulate the jasmonic acid precursor, 12-oxo-phytodienoic acid, in white-leaved rockrose (Cistus albidus L.) plants growing in their natural habitat. This study suggests a bidirectional ...

journal_title：Planta

authors： Casadesús A,Bouchikh R,Pérez-Llorca M,Munné-Bosch S

更新日期：2021-01-18 00:00:00