Occurrence and environmental stress responses of two plastid terminal oxidases in Haematococcus pluvialis (Chlorophyceae).

abstract：:When fed with [(14)C] phenylalanine in the light, xylem tissues isolated from poplar stems were able to incorporate part of the radioactivity into both the guaiacyl and the syringyl residues of lignins. In the dark, only syringyl units were integrated into the polymer whereas the guaiacyl residues remained unlabeled.W...

journal_title：Planta

authors： Grand C,Ranjeva R,Boudet AM,Alibert G

更新日期：1979-01-01 00:00:00

abstract：MAIN CONCLUSION:Melatonin-mediated osmotic tolerance was attributed to increased antioxidant capacity, energy metabolism, osmoregulation and autophagy in wheat (Triticum aestivum L.). Melatonin is known to play multiple roles in plant abiotic stress tolerance. However, its role in wheat has been rarely investigated. In...

journal_title：Planta

authors： Cui G,Sun F,Gao X,Xie K,Zhang C,Liu S,Xi Y

更新日期：2018-07-01 00:00:00

abstract：:Cycloheximide (CH) was applied selectively either to the shoot apex or by infiltration to the leaves of the long-day plant Hyoscyamus niger in order to investigate whether this inhibitor has an effect on the synthesis of a floral stimulus in the leaves. Treatment of the shoot apex with CH caused inhibition of the phot...

journal_title：Planta

authors： Klautke S,Rau W

更新日期：1973-03-01 00:00:00

abstract：:Low-temperature scanning-electron microscopy was used to study the freezing of leaves of five species that have no resistance to freezing: bean (Phaseolus vulgaris L.), tobacco (Nicotiana tabacum L.), tomato (Lycopersicon esculentum L.), cucumber (Cucumis sativus L.), and corn (Zea mays L.). In the leaves of the four ...

journal_title：Planta

authors： Ashworth EN,Pearce RS

更新日期：2002-03-01 00:00:00

abstract：:Senescence of barley (Hordeum vulgare L. cv. Carina) primary foliage leaves was induced by transfer of the plants into darkness for 2 d. Under these conditions senescence was characterized by a light-reversible decline in the efficiency of photosystem II, and in chlorophyll and protein contents. To isolate senescence-...

journal_title：Planta

authors： Kleber-Janke T,Krupinska K

更新日期：1997-01-01 00:00:00

abstract：:At high potassium concentrations it is possible to isolate largely intact polysomes from fertilized and unfertilized Fucus vesiculosus eggs, and to study the distribution pattern of ribosomal particles in a sucrose gradient. The changes in the ribosomal pattern before and after fertilization reflect the time course of...

journal_title：Planta

authors： Linskens HF

更新日期：1969-06-01 00:00:00

abstract：MAIN CONCLUSION:Four polygalacturonase gene family members were highlighted that contribute to elucidate the roles of polygalacturonase during the fertility conversion process in male-sterile wheat. Polygalacturonase (PG) belongs to a large family of hydrolases with important functions in cell separation during plant g...

journal_title：Planta

authors： Ye J,Yang X,Yang Z,Niu F,Chen Y,Zhang L,Song X

更新日期：2020-08-01 00:00:00

abstract：:Particulate enzymic preparations obtained from homogenates of differentiated xylem cells isolated from sycamore trees, catalyzed the formation of a radioactive xylan in the presence of UDP-D-[U-(14)C]xylose as substrate. The synthesized xylan was not dialyzable through Visking cellophane tubing. Successive extraction ...

journal_title：Planta

authors： Dalessandro G,Northcote DH

更新日期：1981-01-01 00:00:00

abstract：:The dehydration-responsive element binding proteins (DREB1)/C-repeat (CRT) binding factors (CBF) function as transcription factors and bind to the DRE/CRT cis-acting element (core motif: G/ACCGAC) commonly present in cold-regulated (COR) genes and subsequently upregulate the expression of such genes in Arabidopsis. We...

journal_title：Planta

authors： Xiong Y,Fei SZ

更新日期：2006-09-01 00:00:00

abstract：:During five rocket flights (TEXUS 18, 19, 21, 23 and 25), experiments were performed to investigate the behaviour of statoliths in rhizoids of the green alga Charo globularia Thuill. and in statocytes of cress (Lepidium sativum L.) roots, when the gravitational field changed to approx. l0(-4) g (i.e. microgravity) dur...

journal_title：Planta

authors： Volkmann D,Buchen B,Hejnowicz Z,Tewinkel M,Sievers A

更新日期：1991-01-01 00:00:00

abstract：:Ribulose diphosphate (RuDP) and (PEP) phosphoenolpyruvate carboxylase enzyme activities were studied in young, mature, and senescent Portulaca oleracea leaves. While the absolute amount of both the C3 (RuDP) and C4 (PEP) carboxylase is less in senescent leaves than in mature leaves, RuDP carboxylase activity is reduce...

journal_title：Planta

authors： Kennedy RA

更新日期：1976-01-01 00:00:00

abstract：:Detached phyllodia ofBryophyllum tubiflorum were fed under illumination with(14)CO2 at different times during the light/dark period (12:12 hours). After photosynthesis in presence of(14)CO2 during the intrinsic dark period the greatest part of soluble radioactivity was found in malate. When the same experiment was rep...

journal_title：Planta

authors： Kluge M

更新日期：1969-06-01 00:00:00

abstract：:In order to change the sugar status during seed development a yeast-derived invertase gene was expressed in cotyledons of Vicia narbonensis. As a result, sucrose decreased whereas hexoses accumulated. We analysed cell structure and cellular differentiation in cotyledons expressing the yeast-invertase. Transgenic cells...

journal_title：Planta

authors： Neubohn B,Gubatz S,Wobus U,Weber H

更新日期：2000-08-01 00:00:00

abstract：:Nitrate reductase (NR, EC 1.6.6.1) and nitrite reductase (NIR, EC 1.7.7.1) are the key enzymes of nitrate reduction. It is well established that the appearance of these enzymes is "induced" by nitrate, and it is generally believed that NR is cytosolic while NIR is plastidic. In mustard (Sinapis alba L.) cotyledons we ...

journal_title：Planta

authors： Schuster C,Mohr H

更新日期：1990-06-01 00:00:00

abstract：:Short-term applications of very high concentrations of 1-naphthaleneacetic acid (NAA) to expiants from flower stalks of tobacco (Nicotiana tabacum L. cv. Samsun) induced flower-bud regeneration to the same extent as longer or continuous incubation on lower concentrations. The maximum number of flower buds per explant ...

journal_title：Planta

authors： Smulders MJ,Visser EJ,Croes AF,Wullems GJ

更新日期：1990-02-01 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：:The high rate of respiration in Chlorella which is found after feeding with glucose or after a longer period of photosynthesis, declines in the dark in the course of hours to about a quarter of its original value. Blue-green light (λ<550 mμ) specifically counteracts this decline and maintains the high rate. This blue ...

journal_title：Planta

authors： Kowallik W,Gaffron H

更新日期：1966-03-01 00:00:00

abstract：:(15)N-labelled nitrate was used to show that nitrate reduction by leaf discs in darkness was suppressed by oxygen, whereas nitrite present within the cell could be reduced under aerobic dark conditions. In other experiments, unlabelled nitrite, allowed to accumulate in the tissue during the dark anaerobic reduction of...

journal_title：Planta

authors： Mann AF,Hucklesby DP,Hewitt EJ

更新日期：1979-01-01 00:00:00

abstract：:For phototropic curvature of a green sunflower seedling, only the hypocotyl has to be illuminated; the tip and cotyledons are not involved in stimulus perception. The etiolated seedling is phototropically insensitive, illumination of only the hypocotyl renders it sensitive. It is concluded that the photoreceptor is lo...

journal_title：Planta

authors： Franssen JM,Bruinsma J

更新日期：1981-04-01 00:00:00

abstract：:It is widely reported that some humic substances behave as exogenous auxins influencing root growth by mechanisms that are not yet completely understood. This study explores the hypothesis that the humic acids' effects on root development involve a nitric oxide signaling. Maize seedlings were treated with HA 20 mg C L...

journal_title：Planta

authors： Zandonadi DB,Santos MP,Dobbss LB,Olivares FL,Canellas LP,Binzel ML,Okorokova-Façanha AL,Façanha AR

更新日期：2010-04-01 00:00:00

abstract：MAIN CONCLUSION:Exogenous SA treatment at appropriate concentrations promotes adventitious root formation in cucumber hypocotyls, via competitive inhibiting the IAA-Asp synthetase activity of CsGH3.5, and increasing the local free IAA level. Adventitious root formation is critical for the cutting propagation of horticu...

journal_title：Planta

authors： Dong CJ,Liu XY,Xie LL,Wang LL,Shang QM

更新日期：2020-10-07 00:00:00

abstract：:Ozone (O3), a major photochemical oxidant, causes leaf injury in plants. Plants synthesize salicylic acid (SA), which is reported to greatly affect O3 sensitivity. However, the mechanism of SA biosynthesis under O3 exposure remains unclear. Plants synthesize SA either by a pathway involving phenylalanine as a substrat...

journal_title：Planta

authors： Ogawa D,Nakajima N,Tamaoki M,Aono M,Kubo A,Kamada H,Saji H

更新日期：2007-10-01 00:00:00

abstract：:Fe uptake in dicotyledonous plants is mediated by a root plasma membrane-bound ferric reductase that reduces extracellular Fe(III)-chelates, releasing Fe(2+) ions, which are then absorbed via a metal ion transporter. We previously showed that Fe deficiency induces an increased capacity to absorb Fe and other micronutr...

journal_title：Planta

authors： Cohen CK,Garvin DF,Kochian LV

更新日期：2004-03-01 00:00:00

abstract：MAIN CONCLUSION:Methyl-jasmonate induces large increases in p-coumarate linked to arabinoxylan in Brachypodium and in abundance of GT61 and BAHD family transcripts consistent with a role in synthesis of this linkage. Jasmonic acid (JA) signalling is required for many stress responses in plants, inducing large changes i...

journal_title：Planta

authors： Hyde LS,Pellny TK,Freeman J,Michaelson LV,Simister R,McQueen-Mason SJ,Mitchell RAC

更新日期：2018-11-01 00:00:00

abstract：:To determine the sites of synthesis of chloroplast-envelope proteins, we have analysed several enzyme and translocator functions ascribed to the envelope membranes, and investigated the envelope polypeptide composition of plastids isolated from 70S ribosome-deficient leaves of rye (Secale cereale L.) generated by grow...

journal_title：Planta

authors： Höinghaus R,Feierabend J

更新日期：1985-12-01 00:00:00

abstract：:Ectomycorrhizal associations are of major ecological importance in temperate and boreal forests. The development of a functional ectomycorrhiza requires many genetic and biochemical changes. In this study, suppressive subtraction hybridization was used to identify differentially expressed genes in the roots of maritim...

journal_title：Planta

authors： Flores-Monterroso A,Canales J,de la Torre F,Ávila C,Cánovas FM

更新日期：2013-06-01 00:00:00

abstract：:The effect of external calcium and sodium ion concentrations on the calcium fluxes on the Pelvetia fastigiata De Toni egg was measured. Decreasing external [Ca(2+)] greatly increased the permeability of the eggs to Ca(2+); at 1 mM external Ca(2+) this permeability was 60 times as great as it was at the normal [Ca(2+)]...

journal_title：Planta

authors： Robinson KR

更新日期：1977-01-01 00:00:00

abstract：:A manganese-containing superoxide dismutase (EC 1.15.1.1) was purified to homogeneity from a higher plant for the first time. The enzyme was isolated fromPisum sativum leaf extracts by thermal fractionation, ammonium sulfate salting out, ion-exchange and gel-filtration column chromatography, and preparative polyacryla...

journal_title：Planta

authors： Sevilla F,López-Gorgé J,Gómez M,Del Río LA

更新日期：1980-01-01 00:00:00

abstract：:Experiments have been carried out to determine the basis for the dependence of chloroplast pigment synthesis on protein synthesis in dark-grown cells of Euglena gracilis greening in the light. The complete inhibition of chlorophyll synthesis brought about by actidione (10 μg/ml) when added half way through the greenin...

journal_title：Planta

authors： Kirk JT

更新日期：1967-06-01 00:00:00

abstract：:A novel plant lectin was isolated from salt-stressed rice (Oryza sativa L.) plants and partially characterized. The lectin occurs as a natural mixture of two closely related isoforms consisting of two identical non-covalently linked subunits of 15 kDa. Both isoforms are best inhibited by mannose and exhibit potent mit...

journal_title：Planta

authors： Zhang W,Peumans WJ,Barre A,Astoul CH,Rovira P,Rougé P,Proost P,Truffa-Bachi P,Jalali AA,Van Damme EJ

更新日期：2000-05-01 00:00:00