Cortical cell fluxes and transport to the stele in excised root segments of Allium cepa L. : IV. Calcium as affected by its external concentration.

abstract：:The studies described in the paper were conducted with tissue slices of Crassulacean acid metabolism (CAM) plants floating in isotonic buffer. In a first series of experiments, temperature effects on the efflux of [(14)C]malate and(14)CO2 were studied. An increase of temperature increased the efflux from the tissue in...

journal_title：Planta

authors： Friemert V,Heininger D,Kluge M,Ziegler H

更新日期：1988-12-01 00:00:00

abstract：:The lower epidermis from leaves of Primula palinuri can be stripped off. Light-saturation curves of the CO2-exchange were measured at 20°C and 300 ppm CO2. Whereas the normal leaf reaches light-saturation at 0.3 cal cm(-2) min(-1), even 0.6 cal cm(-2) min(-1) is not sufficient to saturate the stripped leaf. Transpirat...

journal_title：Planta

authors： Bertsch A

更新日期：1969-03-01 00:00:00

abstract：:The role of acidic SK(n) dehydrins in stress tolerance of important crop and model species of the Solanaceae remains unknown. We have previously shown that the acidic SK₃ dehydrin DHN24 from Solanum sogarandinum is constitutively expressed and its expression is associated with cold acclimation. Here we found that DHN2...

journal_title：Planta

authors： Szabala BM,Fudali S,Rorat T

更新日期：2014-04-01 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：:The circadian movement of the lamina of primary leaves of Phaseolus coccineus L. is mediated by antagonistic changes in the length of the extensor and flexor cells of the laminar pulvinus. The cortex of the pulvinus is a concentric structure composed of hexagonal disc-like cells, arranged in longitudinal rows around t...

journal_title：Planta

authors： Mayer WE,Flach D,Raju MV,Starrach N,Wiech E

更新日期：1985-03-01 00:00:00

abstract：:Networks of transcription factors control physiological, developmental and environmental responses. Root iron acquisition responses are controlled by the essential bHLH protein FIT. Recently, two group Ib BHLH genes were reported to be iron deficiency-regulated. Here, we studied expression patterns of these two group ...

journal_title：Planta

authors： Wang HY,Klatte M,Jakoby M,Bäumlein H,Weisshaar B,Bauer P

更新日期：2007-09-01 00:00:00

abstract：:Vacuoles isolated from red beet (Beta vulgaris L.) storage roots contain Na(+) and K(+) but their analysis does not give reliable information about the size of vacuolar pools of these ions in vivo. Analyses of isolated vacuoles indicated that between 53% and 90% of the Na(+) was located in the vacuole and that the vac...

journal_title：Planta

authors： Leigh RA,Tomos AD

更新日期：1983-11-01 00:00:00

abstract：:The electrochemical potential differences [Formula: see text] for potassium, between excised barley (Hordeum vulgare L.) roots and external media containing 0.05 mM KCl+0.5 mM CaSO4, were determined over a 4-h period during which initially low-K(+) roots accumulated K(+) by pretreatment in 50 mM KCl plus 0.5 mM CaCl2....

journal_title：Planta

authors： Glass AD,Dunlop J

更新日期：1979-01-01 00:00:00

abstract：MAIN CONCLUSION:The plant LIMs comprise two sub-families with one (DA1/DAR) and two (2LIM) LIM domains. This review comprehensively discussed the structure and potential role of this protein family in diverse area of plant biology. The description of first eukaryote lineage-specific plant LIM domain (LIN11, ISL1, and M...

journal_title：Planta

authors： Srivastava V,Verma PK

更新日期：2017-09-01 00:00:00

abstract：:In contrast to seed plants, the roots of most ferns have a single apical cell which is the ultimate source of all cells in the root. The apical cell has a tetrahedral shape and divides asymmetrically. The root cap derives from the distal division face, while merophytes derived from three proximal division faces contri...

journal_title：Planta

authors： Piekarska-Stachowiak A,Nakielski J

更新日期：2013-12-01 00:00:00

abstract：:In spite of their silent and sessile life, plants are dynamic organisms that have developed advanced defence strategies in their adaptation to the pressure of herbivores and pathogens. Natural plant products play an important role as chemical weapons in this warfare. Characteristic of cruciferous plants is the synthes...

journal_title：Planta

authors： Hansen BG,Halkier BA

更新日期：2005-07-01 00:00:00

abstract：MAIN CONCLUSION:Recent publications have increased our knowledge of how pectin composition and the degree of homogalacturonan methylesterification impact the biochemical and biomechanical properties of plant cell walls, plant development, and plants' interactions with their abiotic and biotic environments. Experimental...

journal_title：Planta

authors： Levesque-Tremblay G,Pelloux J,Braybrook SA,Müller K

更新日期：2015-10-01 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：: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：:The long-distance transport and actions of the phytohormone methyl jasmonate (MeJA) were investigated by using the short-lived positron-emitting isotope 11C to label both MeJA and photoassimilate, and compare their transport properties in the same tobacco plants (Nicotiana tabacum L.). There was strong evidence that M...

journal_title：Planta

authors： Thorpe MR,Ferrieri AP,Herth MM,Ferrieri RA

更新日期：2007-07-01 00:00:00

abstract：:Free porphyrins and their magnesium complexes, including chlorophylls, are potent photo-sensitizers. Plants usually accumulate these compounds bound to proteins together with protective compounds like carotenoids. Besides their protective role, carotenoids can play a structural role in these complexes. To analyze the ...

journal_title：Planta

authors： La Rocca N,Rascio N,Oster U,Rüdiger W

更新日期：2007-03-01 00:00:00

abstract：MAIN CONCLUSION:Site-specific changes of photosynthesis, a relatively new concept, can be used to improve the productivity of critical food crops to mitigate the foreseen food crisis. Global food security is threatened by an increasing population and the effects of climate change. Large yield improvements were achieved...

journal_title：Planta

authors： Dehigaspitiya P,Milham P,Ash GJ,Arun-Chinnappa K,Gamage D,Martin A,Nagasaka S,Seneweera S

更新日期：2019-10-01 00:00:00

abstract：:Murine monoclonal antibodies to membrane antigens were generated by immunization with a crude cellular membrane preparation from suspension-cultured cells of Nicotiana glutinosa L. From a panel of thirteen monoclonal antibodies, seven were found to be directed against antigens present on the plasma-membrane by immunof...

journal_title：Planta

authors： Norman PM,Wingate VP,Fitter MS,Lamb CJ

更新日期：1986-04-01 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

abstract：:Protoplasts of Vicia hajastana Grossh. obtained from suspension-culture cells and Pisum sativum L. obtained from leaves adhered tightly to each other in concentrated solutions of high-molecular-weight polyethylene glycol (PEG). The adhesion occurred non-specifically between the free protoplasts from the same species a...

journal_title：Planta

authors： Kao KN,Michayluk MR

更新日期：1974-12-01 00:00:00

abstract：:In plants, transgenes frequently become spontaneously silenced for unknown reasons. Typically, transgene silencing involves the generation of small interfering RNAs (siRNAs) that directly or indirectly target cognate DNA and mRNA sequences for methylation and degradation, respectively. In this report, we compared spon...

journal_title：Planta

authors： Dalakouras A,Moser M,Boonrod K,Krczal G,Wassenegger M

更新日期：2011-10-01 00:00:00

abstract：:In yeast and mammals, ATP-dependent chromatin remodelling complexes of the SWI/SNF family play critical roles in the regulation of transcription, cell proliferation, differentiation and development. Homologues of conserved subunits of SWI/SNF-type complexes, including Snf2-type ATPases and SWI3-type proteins, particip...

journal_title：Planta

authors： Archacki R,Sarnowski TJ,Halibart-Puzio J,Brzeska K,Buszewicz D,Prymakowska-Bosak M,Koncz C,Jerzmanowski A

更新日期：2009-05-01 00:00:00

abstract：:Preharvest aflatoxin contamination has been identified by the peanut industry as a serious issue in food safety and human health because of the carcinogenic toxicity. Drought stress is the most important environmental factor exacerbating Aspergillus infection and aflatoxin contamination in peanut. The development of d...

journal_title：Planta

authors： Guo BZ,Xu G,Cao YG,Holbrook CC,Lynch RE

更新日期：2006-02-01 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：:The thermosensitivity of delayed fluorescence, the relative values of variable chlorophyll fluorescence and the degree of quenching of 9-aminoacridine fluorescene were studied in the chloroplasts from heat-acclimated and non-acclimated (treated 6 h at 52,5°C) young bean plants. The temperature sensitivity of each para...

journal_title：Planta

authors： Yordanov I,Goltsev V,Stoyanova T,Venediktov P

更新日期：1987-04-01 00:00:00

abstract：:Autoregulatory mechanisms have been reported in the rhizobial and the mycorrhizal symbiosis. Autoregulation means that already existing nodules or an existing root colonization by an arbuscular mycorrhizal fungus systemically suppress subsequent nodule formation/root colonization in other parts of the root system. Mut...

journal_title：Planta

authors： Meixner C,Ludwig-Müller J,Miersch O,Gresshoff P,Staehelin C,Vierheilig H

更新日期：2005-11-01 00:00:00

abstract：:Isolated chloroplasts from spinach leaf cells, chloroplast subfractions, and a cell-free system of the cyanobacterium Synechococcus CCAP 6312 incorporated [1-(14)C]isopentenyl pyrophosphate in high yields into prenyl lipids. Products were polyprenols (C20, C45) chlorophylls, quinoid compounds, and fatty acid prenyl es...

journal_title：Planta

authors： Lütke-Brinkhaus F,Weiss G,Kleinig H

更新日期：1985-01-01 00:00:00

abstract：:Protein phosphatase 2A (PP2A) is a serine/threonine-specific phosphatase comprising a catalytic subunit (C), a scaffolding subunit (A), and a regulatory subunit (B). The B subunits are believed to be responsible for substrate specificity and localization of the PP2A complex. In plants, three families of B subunits exi...

journal_title：Planta

authors： Matre P,Meyer C,Lillo C

更新日期：2009-10-01 00:00:00

abstract：:This work was done to determine whether the inorganic-pyrophosphate (PPi) content of plant tissues changes when the rate of glycolysis is altered. Treatment of excised clubs of the spadix of Arum maculatum L. and root apices of Pisum sativum L. with 2,4-dinitrophenol increased the rates of respiration but had no detec...

journal_title：Planta

authors： Dancer JE,Rees TA

更新日期：1989-06-01 00:00:00

abstract：:The cell walls in the new white roots of jack pine (Pinus banksiana Lamb.) were observed to constrict around the shrinking protoplast of osmotically stressed roots, and pressure was maintained via an apparent adjustment of cell-wall size and elasticity. These elastic alterations of the cell wall permitted the root cel...

journal_title：Planta

authors： Marshall JG,Dumbroff EB,Thatcher BJ,Martin B,Rutledge RG,Blumwald E

更新日期：1999-05-01 00:00:00