A model of carbon dioxide assimilation in Chlamydomonas reinhardii.

abstract：:Phosphorylation/dephosphorylation of the plasma-membrane H(+)-ATPase (EC 3.6.1.35) could act as a regulatory mechanism to control its activity. In this work, a plasmalemma-enriched fraction from maize roots and a partially purified H(+)-ATPase were used to investigate the effects of Ca(2+) and calmodulin on the H(+)-A...

journal_title：Planta

authors： De Nisi P,Dell'Orto M,Pirovano L,Zocchi G

更新日期：1999-08-12 00:00:00

abstract：:The qualitative and quantitative composition of the carotenoids of young cells of Euglena gracilis strain 1224-5/9 corresponded to that of the "Z"-strain.The frequently observed yellow-reddish discolouration of ageing cells was found to be caused by a heavy breakdown of the chlorophylls and not by an increased synthes...

journal_title：Planta

authors： Schwenker U

更新日期：1971-06-01 00:00:00

abstract：:The inhibition of hypocotyl lengthening in intact mustard seedlings is controlled by two photosensitive systems which can be experimentally separated. 1. Kinetics of the growth response in the dark after red and far-red irradiation (Figs. 1, 2) demonstrate the operation of Pfr in the ground state via a threshold mecha...

journal_title：Planta

authors： Schopfer P,Oelze-Karow H

更新日期：1971-06-01 00:00:00

abstract：:Leaf tissue of the panicoid grass Pennisetum purpureum (Schum) and of the chloridoid grass Muhlenbergia montana (Hitchcock) were fractionated to produce preparations enriched in the contents of mesophyll and bundle sheath cells. Sucrose phosphate synthetase and sucrose synthetase were found predominantly in the mesoph...

journal_title：Planta

authors： Bucke C,Oliver IR

更新日期：1975-01-01 00:00:00

abstract：:The response of a number of species to high light levels was examined to determine whether chlorophyll fluorescence from photosystem (PS) II measured at ambient temperature could be used quantitatively to estimate the photon yield of O2 evolution. In many species, the ratio of the yield of the variable (FV) and the ma...

journal_title：Planta

authors： Adams WW 3rd,Demmig-Adams B,Winter K,Schreiber U

更新日期：1990-01-01 00:00:00

abstract：:Polyamine levels and the activities of two polyamine biosynthetic enzymes, arginine decarboxylase (EC 4.1.1.19) and S-adenosylmethionine decarboxylase (EC 4.1.1.50), were determined during somatic embryogenesis of carrot (Daucus carota L.) cell cultures. Embryogenic cultures showed severalfold increases in polyamine l...

journal_title：Planta

authors： Fienberg AA,Choi JH,Lubich WP,Sung ZR

更新日期：1984-12-01 00:00:00

abstract：:Protoplasts prepared from the upper epidermis of tobacco (Nicotiana tabacum L.) leaves produce tubular structures which are highly fluorescent in the presence of Calcofluor white. The presence of Ca(2+) in the incubation medium appears to be necessary for the production of these fibers. A commercial cellulase preparat...

journal_title：Planta

authors： Fannin FF,Shaw JG

更新日期：1983-11-01 00:00:00

abstract：:The level of plastidic glutamine synthetase (GS; EC 6.3.1.2) in the cotyledonary whorl of the Scots pine (Pinus sylvestris L.) seedling was previously reported to be regulated by light. In the present paper we report on the control by light of the GS transcript level. A full-length GS cDNA clone of Scots pine was isol...

journal_title：Planta

authors： Elmlinger MW,Bolle C,Batschauer A,Oelmüller R,Mohr H

更新日期：1994-01-01 00:00:00

abstract：:By comparing the expression patterns of selected genes from Arabidopsis thaliana (L.) Heynh. grown either at 1 g or on a clinostat (horizontally or vertically inverted, 1 rpm), and either used directly or after hypergravity stimulation, we have shown that the pattern of expression did not proceed in a stereotypical ma...

journal_title：Planta

authors： Centis-Aubay S,Gasset G,Mazars C,Ranjeva R,Graziana A

更新日期：2003-12-01 00:00:00

abstract：:Regeneration of flower buds in thin tissue layers from pedicels of photoinduced short-day (SD) tobacco, Nicotiana tabacum L. cv. Maryland Mammoth, is described. Up to seven flower buds per explant were obtained in a medium containing Murashige and Skoog's macro- and microclements, 100 mg/l myoinositol, 0.1 mg/l thiami...

journal_title：Planta

authors： Rajeevan MS,Lang A

更新日期：1987-08-01 00:00:00

abstract：:Phytochrome, activated by continuous red light, increases the amount of total polyadenylated RNA during photomorphogenesis of mustard (Sinapis alba L.) cotyledons. In-vitro translation of total polyadenylated RNA in a reticulocyte translation system has shown that the activity of translatable β-amylase mRNA is increas...

journal_title：Planta

authors： Sharma R,Schopfer P

更新日期：1987-07-01 00:00:00

abstract：:Salt stress is one of the most important abiotic stress factors affecting plant growth and productivity in natural ecosystems. In this study, we aimed at determining possible differences between salt tolerant and salt sensitive species in early (within 72 h) salt stress response in leaves and roots. To this purpose, w...

journal_title：Planta

authors： Ellouzi H,Ben Hamed K,Hernández I,Cela J,Müller M,Magné C,Abdelly C,Munné-Bosch S

更新日期：2014-12-01 00:00:00

abstract：:Data and theories about the identity of the mass that acts in gravitropic sensing are reviewed. Gravity sensing may have evolved several times in plants and algae in processes such as gravitropism of organs and tip-growing cells, gravimorphism, gravitaxis, and the regulation of cytoplasmic streaming in internodal cell...

journal_title：Planta

authors： Sack FD

更新日期：1997-09-01 00:00:00

abstract：:Hypocotyls of dark-grown seedlings of Arabidosis thaliana exhibit a strong negative gravitropism, which is reduced by red and also by long-wavelength, far-red light treatments. Light treatments using phytochrome A (phyA)- and phytochrome B (phyB)-deficient mutants showed that this response is controlled by phyB in a r...

journal_title：Planta

authors： Poppe C,Hangarter RP,Sharrock RA,Nagy F,Schäfer E

更新日期：1996-01-01 00:00:00

abstract：:An autopolyploid that contains more than two sets of the same chromosomes causes apparent alterations in morphology, development, physiology and gene expression compared to diploid. However, the mechanisms for these changes remain largely unknown. In the present study, cytological observations of mature embryos and gr...

journal_title：Planta

authors： Li X,Yu E,Fan C,Zhang C,Fu T,Zhou Y

更新日期：2012-08-01 00:00:00

abstract：:We have examined the activity and regulation of the glycolate oxidizing enzyme in ten different greening stages of the Chlorella mutant Chlorella fusca C-1.1.10.10 The mutant has lost the ability to form chlorophyll in the dark. The dark grown cells exposed to light need after a short lag phase about 12 hs for normal ...

journal_title：Planta

authors： Wild A,Müller BV

更新日期：1974-01-01 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：:Late-formed metaphloem sieve-elements in the vascular bundles of the leaf and pedicels of Zea differ from the typical sieve elements by having thicker cell walls and larger, elongate plastids. The plastids contain a quasi-crystalline structure which is different from that observed in the spherical plastids of sieve el...

journal_title：Planta

authors： Walsh MA

更新日期：1974-01-01 00:00:00

abstract：:The effect of blue and red light on the synthesis of transfer and 5S ribosomal RNA in autotrophic cultures of Chlorella pyrenoidosa was studied by pulse labeling experiments with tritiated guanosine. Compared with darkness or red light (679 nm), blue light (457 nm) of low intensities (quantum flux: 0.5-5×10(-10) mol p...

journal_title：Planta

authors： Steup M,Ssymank V,Winkler U,Glock H

更新日期：1977-01-01 00:00:00

abstract：:Influx of (45)Ca into internodal cells of Chara corallina has been measured, using short uptake times, and a wash in ice-cold La(3+)-containing pondwater after the labelling period to overcome the difficulty of distinguishing extracellular tracer from that in the cell. Over 5-15 min the uptake was linear with time, th...

journal_title：Planta

authors： Macrobbie EA,Banfield J

更新日期：1988-11-01 00:00:00

abstract：:Uptake of silicic acid in the diatoms Navicula pelliculosa and Nitzschia alba was studied, using the natural isotope, (28)Si, or a radioisotope, (31)Si. The rate of uptake of silicic acid was also determined by using [(68)Ge]germanic acid as a tracer of silicic acid. At a given silicicacid concentration in the growth ...

journal_title：Planta

authors： Azam F

更新日期：1974-01-01 00:00:00

abstract：:Chloride ions are necessary to compensate for the positively charged potassium ions imported into guard cells of Allium cepa L. during stomatal opening. Therefore an external Cl(-) supply of intact Allium plants is important. But high levels of chloride have been found to reduce the sensitivity of the starch-lacking s...

journal_title：Planta

authors： Schnabl H

更新日期：1978-01-01 00:00:00

abstract：:Gas chromatographic-mass spectroscopic evidence is presented for the presence of arachidonic acid ((all-Z)-5,8,11,14-eicosatetraenoic acid) in virgin wheat-germ oil. The amount of arachidonic acid in wheat-germ oil, determined as methyl ester using gas chromatographic detection, was quantified with reference to a stan...

journal_title：Planta

authors： Janistyn B

更新日期：1982-08-01 00:00:00

abstract：:Conchospores from the perennial conchocelis phase of the annual, epiphytic, marine red alga Porphyra nereocystis Anderson, which in nature lives on the large annual kelp Nereocystis luetkeana (Mertens) Postels et Ruprecht, are released in culture only in response to a short-day photoperiod treatment followed by a long...

journal_title：Planta

authors： Dickson LG,Waaland JR

更新日期：1985-09-01 00:00:00

abstract：:Increasing blue light intensity inhibits the growth of Chlorella pyrenoidosa in glucose culture in which photosynthesis is blocked by DCMU, whereas red light supports growth which is the same as or better than that in dark controls.The action spectrum of light induced protein synthesis from exogenous glucose (photosyn...

journal_title：Planta

authors： Kowallik W

更新日期：1966-09-01 00:00:00

abstract：:Vomifoliol, a compound related to abscisic acid (ABA) but lacking the 2,4-pentadiene sidechain and so far found in four different plant families, caused as much stomatal closure in epidermal strips of Eichhornia crassipes (Mart.) Solms as ABA at identical concentrations. It appears worthwhile to investigate whether vo...

journal_title：Planta

authors： Stuart KL,Coke LB

更新日期：1975-01-01 00:00:00

abstract：:The net increase in total protein during development of tomato fruit locule tissue has been further investigated with respect to the sites of protein synthesis within the cells. The results point to the plastids as being the major sites of protein synthesis. This is supported by radioisotope experiments in which label...

journal_title：Planta

authors： Davies JW,Cocking EC

更新日期：1967-09-01 00:00:00

abstract：MAIN CONCLUSION:Oleanolic acid glucuronosyltransferase (OAGT) genes synthesizing the direct precursor of oleanane-type ginsenosides were discovered. The four recombinant proteins of OAGT were able to transfer glucuronic acid at C-3 of oleanolic acid that yields oleanolic acid 3-O-β-glucuronide. Ginsenosides are the pri...

journal_title：Planta

authors： Tang QY,Chen G,Song WL,Fan W,Wei KH,He SM,Zhang GH,Tang JR,Li Y,Lin Y,Yang SC

更新日期：2019-02-01 00:00:00

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：MAIN CONCLUSION:Regulation of a gene encoding coniferaldehyde 5-hydroxylase leads to substantial alterations in lignin structure in rice cell walls, identifying a promising genetic engineering target for improving grass biomass utilization. The aromatic composition of lignin greatly affects utilization characteristics ...

journal_title：Planta

authors： Takeda Y,Koshiba T,Tobimatsu Y,Suzuki S,Murakami S,Yamamura M,Rahman MM,Takano T,Hattori T,Sakamoto M,Umezawa T

更新日期：2017-08-01 00:00:00