Endogenous auxin determines the pattern of adventitious shoot formation on internodal segments of ipecac.

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 lipid compositions of leaves from Festuca pratensis cv. Rossa (yellowing) were compared with those from a non-yellowing mutant, Bf 993. The leaves of Bf 993 contained a higher level of acyl lipids on both a fresh-weight and a dry-weight basis. Diacylgalactosylglycerol, diacylgalabiosylglycerol and phosphatidylinos...

journal_title：Planta

authors： Harwood JL,Jones AV,Thomas H

更新日期：1982-11-01 00:00:00

abstract：:Internal pH (pHi) was determined inEmiliania huxleyi (Lohmann) using the probe 2',7'-bis-(2-carboxyethyl)-5(and-6)carboxyfluoresceinacetoxymethylester (BCEF-AM) and digital imaging microscopy. The probe BCECF-AM was taken up and hydrolysed to the free acid by the cells. A linear relationship was established between pH...

journal_title：Planta

authors： Dixon GK,Brownlee C,Merrett MJ

更新日期：1989-12-01 00:00:00

abstract：:The cell-wall formation in the egg of Pelvetia fastigiata (J.G. Agardh) DeToni (Fucaceae) was studied with freeze-fracture. 1. The wall is lamellated with microfibrils approximately parallel in each lamella. The average orientation of microfibrils turns about 35° in each subsequent lamella. This slow turn gives rise t...

journal_title：Planta

authors： Peng HB,Jaffe LF

更新日期：1976-01-01 00:00:00

abstract：:A sensitive new fluorescent method is outlined for the study of peptide and amino acid transport processes. Studies on dipeptide transport in germinating barley (Hordeum vulgare.) embryos have provided evidence for accumulation of substrate against a concentration gradient, saturation kinetics, a pH optimum at pH 3.8,...

journal_title：Planta

authors： Higgins CF,Payne JW

更新日期：1977-01-01 00:00:00

abstract：:Plant defence strategies usually involve the action of several gene products. Transgenic resistance strategies are likely to have enhanced efficacy when they involve more than one transgene. Here we explore possible mechanisms for the co-delivery of multiple effectors via a single transgene. As an example we report th...

journal_title：Planta

authors： Urwin PE,McPherson MJ,Atkinson HJ

更新日期：1998-04-01 00:00:00

abstract：:The surface of plants is covered by cuticular wax, which contains a mixture of very long-chain fatty acid (VLCFA) derivatives. This wax surface provides a hydrophobic barrier which reduces non-stomatal water loss. One component of the cuticular wax is the alkyl esters, which typically contain a VLCFA esterified to an ...

journal_title：Planta

authors： King A,Nam JW,Han J,Hilliard J,Jaworski JG

更新日期：2007-07-01 00:00:00

abstract：:1. In Scenedesmus acutus Tomaselli, endogenous variations in cell progeny production and chlorophyll formation have been found which are very similar to those previously described in Chlorella by Hesse (Z. Pflanzenphysiol. 67, 58-77, 1972). When the dark phase of the light-dark-cycle is prolonged to a certain extent, ...

journal_title：Planta

authors： Galling G,Rössler-Hedenskog M,Lorenzen H

更新日期：1975-01-01 00:00:00

abstract：:Wild-type (Ph1) and adenine-requiring (Ad1) cell lines of Datura innoxia Mill. were used in experiments to evaluate arsenate as a growth-lethal compound and its use as a counterselection agent. These experiments led to the devising of methods for the recovery of Ph1 and Ad1 cells after arsenate treatment when plated a...

journal_title：Planta

authors： Horsch RB,King J

更新日期：1984-02-01 00:00:00

abstract：:Assimilates entering the developing rice caryopsis traverse a short-distance pathway between the terminal sieve elements of the pericarp vascular bundle and the aleurone layer. The ultrastructure of this pathway has been studied. Sieve elements in the pericarp vascular bundle are smaller than their companion cells.The...

journal_title：Planta

authors： Oparka KJ,Gates P

更新日期：1981-05-01 00:00:00

abstract：:A study has been made of the wall fibrils produced by tobacco protoplasts, using scanning electron microscopy in conjunction with negative staining. It has been shown that the fibres seen in scanning electron microscopy correspond to aggregates of microfibrils. These aggregates are only visible where they are lifted c...

journal_title：Planta

authors： Burgess J,Linstead PJ

更新日期：1979-01-01 00:00:00

abstract：:Influx and efflux of anions in leaves of Elodea canadensis were investigated. A major component of phosphate efflux was found to be a function of the external phosphate concentration in accord with saturation kinetics, i.e. it was found to be proportional to phosphate influx. This suggests that the transport structure...

journal_title：Planta

authors： Weigl J

更新日期：1967-12-01 00:00:00

abstract：:Phosphate absorption by segments excised from hypocotyls of Phaseolus aureus Roxb. was inhibited by either continuous or short-term illumination with red light. Maximal inhibition was observed at pH 6.5. Illumination with 800 erg cm(-2) s(-1) of red light for 5 min was sufficient to obtain maximal inhibition. The effe...

journal_title：Planta

authors： Tezuka T,Yamamoto Y

更新日期：1975-01-01 00:00:00

abstract：:Changes in the rotational motion of paramagnetic and fluorescent lipid-soluble probes were used to assess the effects of putrescine, spermidine and spermine on the fluidity of microsomal membranes from primary leaves of bean (Phaseolus vulgaris L.). Surface probes were more strongly immobilized by physiological concen...

journal_title：Planta

authors： Roberts DR,Dumbroff EB,Thompson JE

更新日期：1986-03-01 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：: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：:The pathway of sucrose metabolism in cyanobacteria is just starting to be elucidated. The present study describes the first isolation and biochemical characterization of a prokaryotic sucrose synthase (SS, EC 2.4.1.13). Two SS forms (SS-I and SS-II) were detected in Anabaena sp. strain PCC 7119. The isoform SS-II was ...

journal_title：Planta

authors： Porchia AC,Curatti L,Salerno GL

更新日期：1999-11-01 00:00:00

abstract：:Breakdown of chlorophylls in attached senescing sycamore leaves held in darkness was significantly less over a 14-d period than that occurring in leaves exposed to natural light. Chlorophyll a declined more rapidly than chlorophyll b in both situations, the stability of the latter being particularly increased in darkn...

journal_title：Planta

authors： Maunders MJ,Brown SB

更新日期：1983-08-01 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：:Individual leaves of eastern cottonwood (Populus deltoides), representing an ontogenetic series from leaf plastochron index 0.0 to 8.0, were fed (14)CO2 photosynthetically and then harvested at times ranging from 15 to 1440 min. The lamina of each fed leaf was sectioned from tip to base into 5 parts, and each part was...

journal_title：Planta

authors： Larson PR,Isebrands JG,Dickson RE

更新日期：1972-12-01 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：:The pho2 mutant of Arabidopsis thaliana (L.) Heynh. accumulates excessive Pi (inorganic phosphate) concentrations in shoots compared to wild-type plants (E. Delhaize and P. Randall, 1995, Plant Physiol. 107: 207-213). In this study, a series of experiments was conducted to compare the uptake and translocation of Pi by...

journal_title：Planta

authors： Dong B,Rengel Z,Delhaize E

更新日期：1998-06-01 00:00:00

abstract：:The regulation of gravistimulation-induced ethylene production and its role in gravitropic bending was studied in Antirrhinum majus L. cut flower stems. Gravistimulation increased ethylene production in both lower and upper halves of the stems with much higher levels observed in the lower half. Expression patterns of ...

journal_title：Planta

authors： Woltering EJ,Balk PA,Nijenhuis-Devries MA,Faivre M,Ruys G,Somhorst D,Philosoph-Hadas S,Friedman H

更新日期：2005-01-01 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：:The differential expression of PSII genes was investigated in mesophyll and bundle-sheath cells of Flaveria trinervia, a dicotyledonous C4 plant of the NADP-malic enzyme type. A comprehensive immunoblot analysis showed that three extrinsic proteins of the water-splitting complex (10, 16 and 23 kDa) are selectively dep...

journal_title：Planta

authors： Höfer MU,Santore UJ,Westhoff P

更新日期：1992-01-01 00:00:00

abstract：MAIN CONCLUSION:We show that changing the expression of a putative feruloyl transferase gene belonging to the BAHD acyl-transferase family alters the levels of cell wall esterified ferulates and diferulates in Brachypodium distachyon cell walls. While the potential of grass cell walls for biofuel production has been re...

journal_title：Planta

authors： Buanafina MM,Fescemyer HW,Sharma M,Shearer EA

更新日期：2016-03-01 00:00:00

abstract：MAIN CONCLUSION:A large proportion of genes in plant genomes are organized as gene families. Whereas most gene families in the aquative plant Spirodela are reduced in their copy number, the PPR gene family is expanded, which match the RNA editing sites in organelles, providing us with new insights in the evolution of f...

journal_title：Planta

authors： Wang W,Wu Y,Messing J

更新日期：2016-10-01 00:00:00

abstract：:Illumination of a liquid culture of Synechococcus 6301 at high photon flux density (PFD) elicits a time-dependent first-order exponential decline in relative quantum yield of photosynthetic O2 evolution to some steady-state value. Full photosynthetic activity is restored, also as a time-dependent first-order process, ...

journal_title：Planta

authors： Wünschmann G,Brand JJ

更新日期：1992-02-01 00:00:00

abstract：:An inactivated nitrate reductase (EC 1.6.6.1) formed in vivo by the green alga Chlorella fusca Shihira and Kraus is shown to be a cyanide complex. The partially purified inactive enzyme releases 0.048 nmol of HCN per unit of enzyme activated. This compares with 0.066 nmol of HCN liberated in similar previous measureme...

journal_title：Planta

authors： Gewitz HS,Piefke J,Vennesland B

更新日期：1978-01-01 00:00:00

abstract：:While uniparental transmission of mtDNA is widespread and dominating in eukaryotes leaving mutation as the major source of genotypic diversity, recently, biparental inheritance of mitochondrial genes has been demonstrated in reciprocal crosses of Pelargonium zonale and P. inquinans. The thereby arising heteroplasmy ca...

journal_title：Planta

authors： Apitz J,Weihe A,Pohlheim F,Börner T

更新日期：2013-02-01 00:00:00