Ribosomal RNA of Hyacinthus orientalis L. female gametophyte cells before and after fertilization.

abstract：:The distribution of six cytokinins [zeatin, zeatin riboside, 6-(4-hydroxy-3-methylbutylamino)purine, 6-(3-methylbut-2-enylamino)purine and its riboside, and kinetin] between aqueous buffers (pH 3.0 and 7.0) and several organic solvents was assessed and partition coefficients calculated. Purification of cytokinins from...

journal_title：Planta

authors： Letham DS

更新日期：1974-12-01 00:00:00

abstract：:Uncovered in studies on photosynthesis 35 years ago, redox regulation has been extended to all types of living cells. We understand a great deal about the occurrence, function, and mechanism of action of this mode of regulation, but we know little about its origin and its evolution. To help fill this gap, we have take...

journal_title：Planta

authors： Balsera M,Uberegui E,Susanti D,Schmitz RA,Mukhopadhyay B,Schürmann P,Buchanan BB

更新日期：2013-02-01 00:00:00

abstract：:From compartmental analysis of radioisotope elutin measurements, fluxes of Ca(2+) were estimated for cortical cells in root segments of onion, Allium cepa L., relative to complete nutrient solutions containing a range of calcium concentrations ([Ca0]) from 2 μeq l(-1) to 20 meq l(-1), increasing in 10-fold steps for C...

journal_title：Planta

authors： Macklon AE,Sim A

更新日期：1981-08-01 00:00:00

abstract：:When radioactive gibberellin A5 ((3)H-GA5) was applied to the apices and surrounding young leaves of the long-day plant Silene armeria, it was partially converted to at least two other acidic substances. One of them was similar to GA3 in chromatographic, but not in biological properties. The other metabolite was more ...

journal_title：Planta

authors： van den Ende H,Zeevaart JA

更新日期：1971-06-01 00:00:00

abstract：MAIN CONCLUSION:Andean tomatoes differed from the wild ancestor in the metabolic composition and the expression of genes related with mitochondrial functions, and environmental stresses, making them potentially suitable for breeding programmes. Traditional landraces or "criollo" tomatoes (Solanum lycopersicum L.) from ...

journal_title：Planta

authors： D'Angelo M,Zanor MI,Burgos E,Asprelli PD,Boggio SB,Carrari F,Peralta IE,Valle EM

更新日期：2019-12-01 00:00:00

abstract：:The lectin from the garden pea (Pisum sativum L.) has been localized at the ultrastructural level by the unlabeled peroxidase-antiperoxidase procedure of L.A. Sternberger et al. (1970, J. Histochem. Cytochem 18, 315-333) in 24 h imbibed seeds. Upon examination by light microscopy and transmission electron microscopy, ...

journal_title：Planta

authors： Van Driessche E,Smets G,Dejaegere R,Kanarek L

更新日期：1981-12-01 00:00:00

abstract：:Aminoalcoholphosphotransferases (AAPT, EC 2.7.8.1 and EC 2.7.8.2) catalyze the transfer of CDP-aminoalcohols to sn-1, 2 diacylglycerol (DAG) to form phosphatidylaminoalcohols with the release of CMP. The Brassica napus L. AAPT1 gene (designated BnAAPT1) was identified from cDNA libraries of seedlings and developing se...

journal_title：Planta

authors： Qi Q,Huang YF,Cutler AJ,Abrams SR,Taylor DC

更新日期：2003-08-01 00:00:00

abstract：:Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) and cinnamic acid 4-hydroxylase (CA4H, EC 1.14.13.11) undergo concomitant increases in activity after a 2 h lag following disc preparation and illumination. The increases in PAL and CA4H activity can be inhibited by actinomycin-D, cordycepin and cycloheximide. It is demons...

journal_title：Planta

authors： Lamb CJ

更新日期：1977-01-01 00:00:00

abstract：:In a previous paper (HOCK, KüHNERT and MOHR, 1965) we have shown that fat degradation in the cotyledons of the mustard seedling (Sinapis alba L). is under the control of active phytochrome (=P730), at least to a certain extent. One could imagine that P730 might exert this control over fat consumption through isocitrit...

journal_title：Planta

authors： Karow H,Mohr H

更新日期：1966-06-01 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：:Growth inhibitors were assayed from extracts of intact (attached) and of excised (cultured) root caps of Zea mays L., cv. Merit, the roots of which show a positive geotropic response only after exposure to light. If caps are intact at the time of illumination, at least two inhibitory substances are produced, an acid i...

journal_title：Planta

authors： Feldman LJ

更新日期：1981-12-01 00:00:00

abstract：:Etioplasts and chloroplasts isolated from Pisum sativum differ in lipid composition. The relative amounts of galactolipids, especially of MGD, are higher in the chloroplast. In contrast, the sulfo- and the phospholipids are already present in the etioplasts in higher concentrations. During the formation of the thylako...

journal_title：Planta

authors： Heise KP,Jacobi G

更新日期：1973-06-01 00:00:00

abstract：:The storage-protein content of non-zygotic and zygotic embryos of B. napus was compared, using antibodies to guantitate 12S storage protein in extracts by rocket immunoelectrophoresis. Non-zygotic embryos were induced from microspores in anther culture and on the hypocotyls of zygotic embryos in culture. All embryo-li...

journal_title：Planta

authors： Crouch ML

更新日期：1982-01-01 00:00:00

abstract：:Germination of fruits of Lactuca sativa L. cv. "Arctic King" showed a sharp upper temperature maximum at 31±1.0°C on an agar substrate in light. In a series of 60 tests carried out over 2 years, above, below and in the region of this maximum it was demonstrated that variability of germination counts was greater in the...

journal_title：Planta

authors： Reynolds T

更新日期：1973-12-01 00:00:00

abstract：:Soybean (Glycine max (L.) Merr.) seeds contain the storage protein β-conglycinin, encoded by a multigene family. β-Conglycinin consists of three subunits; α', α, and β. A genomic clone for a β-subunit of β-conglycinin has been characterized by restriction-enzyme mapping and hybrid selected in-vitro translation followe...

journal_title：Planta

authors： Bray EA,Naito S,Pan NS,Anderson E,Dubé P,Beachy RN

更新日期：1987-11-01 00:00:00

abstract：:The glucosinolate composition and content in various tissues of Arabidopsis thaliana (L.) Heynh. ecotype Columbia during development from seeds to bolting plants were determined in detail by high-performance liquid chromatography. Comparison of the glucosinolate profiles of leaves, roots and stems from mature plants w...

journal_title：Planta

authors： Petersen BL,Chen S,Hansen CH,Olsen CE,Halkier BA

更新日期：2002-02-01 00:00:00

abstract：:The relationship between adenine-nucleotide levels and metabolism-dependent membrane potential was studied in cells of Nitellopsis obtusa. Effects of ADP and AMP in the presence of ATP on electrogenic pump activity were measured in the dark, using the continuous perfusion method. Both ADP and AMP acte as competitive i...

journal_title：Planta

authors： Mimura T,Shimmen T,Tazawa M

更新日期：1984-09-01 00:00:00

abstract：:Tea seed is believed to be recalcitrant based on its sensitivity to chilling or drying stress. Reactive oxygen species (ROS) and alterations in cytosolic redox status have been implicated in intolerance to desiccation by recalcitrant seed, but there is little information available regarding how ROS are regulated in se...

journal_title：Planta

authors： Chen Q,Yang L,Ahmad P,Wan X,Hu X

更新日期：2011-03-01 00:00:00

abstract：:The activity of phosphoenolpyruvate carboxylase (PEPCase) kinase in leaf extracts increased markedly on dilution. This was shown to be caused by the presence of a protein that inhibits the kinase. The inhibitor protein was separated from the kinase and purified partially. It inhibited the kinase reversibly, presumably...

journal_title：Planta

authors： Nimmo GA,Wilkins MB,Nimmo HG

更新日期：2001-06-01 00:00:00

abstract：:The effect on the phytochrome system of light regimes establishing a range of photoequilibria was studied in two light grown dicotyledonous plants, both of which were treated with the herbicide SAN 9789 to prevent chlorophyll accumulation. In Sinapis alba L. cotyledons the results are comparable with phytochrome behav...

journal_title：Planta

authors： Kilsby CA,Johnson CB

更新日期：1981-10-01 00:00:00

abstract：:Cadmium contamination is a serious environmental problem for modern agriculture and human health. Salinity affects plant growth and development, and interactions between salt and cadmium have been reported. However, the molecular mechanisms of salinity-cadmium interactions are not fully understood. Here, we show that ...

journal_title：Planta

authors： Xu J,Yin H,Liu X,Li X

更新日期：2010-01-01 00:00:00

abstract：:In order to better understand the various pathways of sucrose and starch catabolism in the anther of lily (Lilium hybrida var. "Enchantment"), invertase (EC 3.2.1.26) and amylase (EC 3.2.1.1, EC 3.2.1.2) activities were measured separately in different fractions (anther wall, locular fluid and microspore/pollen) and c...

journal_title：Planta

authors： Castro AJ,Clément C

更新日期：2007-05-01 00:00:00

abstract：:Dehydrins are thought to play an essential role in the response, acclimation and tolerance to different abiotic stresses, such as cold and drought. These proteins have been classified into five groups according to the presence of conserved and repeated motifs in their amino acid sequence. Due to their putative functio...

journal_title：Planta

authors： Perdiguero P,Barbero MC,Cervera MT,Soto A,Collada C

更新日期：2012-12-01 00:00:00

abstract：:Non-lignified fibre cells (named gelatinous fibres) are present in tension wood and the stems of fibre crops (such as flax and hemp). These cells develop a very thick S2 layer within the secondary cell wall, which is characterised by (1) cellulose microfibrils largely parallel to the longitudinal axis of the cell, and...

journal_title：Planta

authors： Gorshkova T,Morvan C

更新日期：2006-01-01 00:00:00

abstract：:The cytokinins present in the spring sap of Acer pseudoplatanus L. were investigated. Ribosyl-trans-zeatin, trans-zeatin and dihydrozeatin were isolated and identified by combined gas chromatography-mass spectrometry (GC-MS). A number of other cytokinin active fractions were observed. One of these was less polar than ...

journal_title：Planta

authors： Purse JG,Horgan R,Horgan JM,Wareing PF

更新日期：1976-01-01 00:00:00

abstract：:Calmodulin, a primary plant calcium receptor, is known to be intimately involved with gravitropic sensing and transduction. Using the calmodulin-binding inhibitors trifluoperazine, W7 and calmidazolium, gravitropic curvature of Arabidopsis thaliana (L.) Heynh, ecotype Landsberg, roots was separable into two phases. Ph...

journal_title：Planta

authors： Sinclair W,Oliver I,Maher P,Trewavas A

更新日期：1996-01-01 00:00:00

abstract：:Artemisia annua L. is the only natural resource that produces artemisinin (Qinghaosu), an endoperoxide sesquiterpene lactone used in the artemisinin-combination therapy of malaria. The cross-hybridization properties of A. annua do not favor studying artemisinin biosynthesis. To overcome this problem, in this study, we...

journal_title：Planta

authors： Alejos-Gonzalez F,Qu G,Zhou LL,Saravitz CH,Shurtleff JL,Xie DY

更新日期：2011-10-01 00:00:00

abstract：:Etiolated maize leaves (Zea mays L.) contain a major isozyme of NADP-dependent malic enzyme (L-malate dehydrogenase, decarboxylating, EC 1.1.1.40) having an isoelectric point of 5.28±0.03, a Km (L-malate) 0.3-0.6 mM at pH 7.45; a broad pH optimum around pH 6.9 under the conditions of assay; a molecular weight of 280,0...

journal_title：Planta

authors： Pupillo P,Bossi P

更新日期：1979-01-01 00:00:00

abstract：:Mechanisms of carbon assimilation were investigated in thalli and protoplasts of Ulva rigida by measuring HCO 3 (-) -dependent O2 evolution at pH 6.5 and 8.6. In thalli, dextran-bound azetazolamide (DBAZ), a specific inhibitor of extracellular carbonic anhydrase (CA), inhibited the rate of O2 evolution at pH 8.6 when ...

journal_title：Planta

authors： Björk M,Haglund K,Ramazanov Z,Garcia-Reina G,Pedersén M

更新日期：1992-04-01 00:00:00

abstract：:A simple model of photosynthetic CO2 assimilation in Chlamydomonas has been developed in order to evaluate whether a CO2-concentrating system could explain the photosynthetic characteristics of this alga (high apparent affinity for CO2, low photorespiration, little O2 inhibition of photosynthesis, and low CO2 compensa...

journal_title：Planta

authors： Spalding MH,Portis AR Jr

更新日期：1985-06-01 00:00:00