Equilibrium freezing of leaf water and extracellular ice formation in Afroalpine 'giant rosette' plants.

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：:Biphenyls and dibenzofurans are the phytoalexins of the Maloideae, a subfamily of the economically important Rosaceae. The carbon skeleton of the two classes of antimicrobial secondary metabolites is formed by biphenyl synthase (BIS). A cDNA encoding this key enzyme was cloned from yeast-extract-treated cell cultures ...

journal_title：Planta

authors： Liu B,Raeth T,Beuerle T,Beerhues L

更新日期：2007-05-01 00:00:00

abstract：:Limbs of flower buds from Petunia hybrida were investigated for β-glucosidase activity with dihydroflavonol-glucosides and 4-methyl-umbelliferyl-β-D-glucoside as substrates. Dihydroflavonol-glucoside β-glucosidase is localized in the cell wall. This activity has an acid pH optimum and is also active toward 4-methyl-um...

journal_title：Planta

authors： Schram AW,Al EJ,Douma N,Jonsson LM,de Vlaming P,Kooi A,Bennink GJ

更新日期：1982-07-01 00:00:00

abstract：:Polymerase chain reaction (PCR) was used to amplify transcripts encoding cytochrome b5 from cDNA synthesised from RNA isolated from developing seeds of tobacco (Nicotiana tabacum L.). The sequence of the amplified products indicated that the clones encoded a second form of tobacco cytochrome b5, different from that pr...

journal_title：Planta

authors： Napier JA,Smith MA,Stobart AK,Shewry PR

更新日期：1995-01-01 00:00:00

abstract：:Sesuvium portulacastrum is a common halophyte growing well in adverse surroundings and is exploited mainly for the environmental protection including phytoremediation, desalination and stabilization of contaminated soil. In the present investigation, attempts have been made on the decolorization of a toxic textile dye...

journal_title：Planta

authors： Patil AV,Lokhande VH,Suprasanna P,Bapat VA,Jadhav JP

更新日期：2012-05-01 00:00:00

abstract：:The apparent photosynthetic affinity of A. variabilis to CO2 is greatly affected by the CO2 concentration in the medium during growth. Halfmaximal rate of photosynthetic O2 evolution is achieved at 10 μM and 100 μM inorganic carbon (Cinorg) in cells grown at low-CO2 (air) and high CO2 (5% v/v CO2 in air), respectively...

journal_title：Planta

authors： Kaplan A,Badger MR,Berry JA

更新日期：1980-08-01 00:00:00

abstract：:Changes in the quantities of free and membrane-bound ribosomes were followed in the cotyledons of developing seeds. During the phase of storage protein synthesis, free and membrane bound ribosomes do not interchange, and as both classes synthesise protein in vivo, it is possible that they may synthesise different grou...

journal_title：Planta

authors： Payne PI,Bouter D

更新日期：1969-09-01 00:00:00

abstract：:We have isolated two stable variants from a crown-gall teratoma tissue of tobacco (Nicotiana tabacum L.) transformed by Agrobacterium tumefaciens strain A66, a mutant of the virulent A6 strain containing an insertion sequence in the tumor-inducing (Ti) plasmid at the locus coding for auxin biosynthesis. Normally tobac...

journal_title：Planta

authors： Pengelly WL,Vijayaraghavan SJ,Sciaky D

更新日期：1986-11-01 00:00:00

abstract：:Hydraulic resistances to water flow have been determined in the cortex of hypocotyls of growing seedlings of soybean (Glycine max L. Merr. cv. Wayne). Data at the cell level (hydraulic conductivity, Lp; half-time of water exchange, T 1/2; elastic modulus, ɛ; diffusivity for the cell-to-cell pathway, D c) were obtained...

journal_title：Planta

authors： Steudle E,Boyer JS

更新日期：1985-05-01 00:00:00

abstract：:Addition of an osmoticum (-12 bars) to the rooting medium of sunflowers (Helianthus annuus L.) caused an increase in the level of abscisic acid (ABA) present in xylem exudate subsequently collected from cut shoots. Using tall and dwarf plants it was shown that there was a time lag in the appearance of increased levels...

journal_title：Planta

authors： Hoad GV

更新日期：1975-01-01 00:00:00

abstract：:Nitric oxide (NO), an endogenous signaling molecule in animals and plants, mediates responses to abiotic and biotic stresses. Our previous work demonstrated that 100 microM sodium nitroprusside (SNP, an NO donor) treatment of maize seedlings increased K(+) accumulation in roots, leaves and sheathes, while decreasing N...

journal_title：Planta

authors： Zhang Y,Wang L,Liu Y,Zhang Q,Wei Q,Zhang W

更新日期：2006-08-01 00:00:00

abstract：:Vascular bundles of petioles below wilted leaves of Nymphoides peltata (S.G. Gmel. O. Kuntze) were frozen intact and freeze-fractured for electron microscopy. Cell walls in them appeared drawn in against the helical thickenings of xylem vessels. By contrast, walls round vessels which had been frozen in vascular bundle...

journal_title：Planta

authors： Johnson RP

更新日期：1977-01-01 00:00:00

abstract：:Studies reported here reveal a low nitrate reductase activity in the shoots of MTU 9 rice plants while in roots high enzyme activity has been recorded.Under pathogenesis, a low nitrate reductase activity in the roots and a high enzyme activity in the shoots have been recorded in susceptible rice plants. In the resista...

journal_title：Planta

authors： Singh TK,Subramanian S

更新日期：1966-06-01 00:00:00

abstract：:Malic and citric acids accumulate in cherry tomato (Lycopersicon esculentum Mill.) fruit during the period of rapid growth, from the end of cell division to the onset of ripening. The involvement of phospho enolpyruvate carboxylase (PEPCase, EC 4.1.1.31) in organic acid accumulation and tomato fruit development was in...

journal_title：Planta

authors： Guillet C,Just D,Bénard N,Destrac-Irvine A,Baldet P,Hernould M,Causse M,Raymond P,Rothan C

更新日期：2002-03-01 00:00:00

abstract：:A group of frequent cDNA clones from a young-leaf cDNA library was found to code for a homologue of S-ribonucleases (S-RNases) involved in gametophytic incompatibility and the so-called S-like RNases active in flowers and in vegetative tissues. The derived amino acid sequence starts with a signal peptide and has a 27-...

journal_title：Planta

authors： Gausing K

更新日期：2000-03-01 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：:We have investigated the regulation of sucrose storage in cell-suspension cultures of sugarcane. When grown in batch culture, sucrose accumulation commences after about 5 d, when the nitrogen supply is exhausted. Sucrose storage is also induced by decreasing the nitrogen supply to cells growing in a chemostat. The mea...

journal_title：Planta

authors： Wendler R,Veith R,Dancer J,Stitt M,Komor E

更新日期：1991-12-01 00:00:00

abstract：:MicroRNAs (miRNAs) play important regulatory roles in plant development and stress responses. Tomato is an economically important vegetable crop in the world with publicly available genomic information database, but only a limited number of tomato miRNAs have been identified. In this study, two independent small RNA l...

journal_title：Planta

authors： Feng J,Liu S,Wang M,Lang Q,Jin C

更新日期：2014-12-01 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：: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：:[1-(14)C]glycollate was oxidised to(14)CO2 by peroxisomes isolated from leaves of spinach beet about 3 times as rapidly at 35°C as at 25°C; the rate was further increased with rise in temperature to a maximum at 55°C. These increases are shown to be mainly due to the increased H2O2 available to oxidise glyoxylate non-...

journal_title：Planta

authors： Grodzinski B,Butt VS

更新日期：1977-01-01 00:00:00

abstract：:In order to elucidate the involvement of brassinosteroids in the cell elongation process leading to normal plant morphology, indirect immunofluorescence and molecular techniques were use to study the expression of tubulin genes in the bul1-1 dwarf mutant of Arabidopsis thaliana (L.) Heynh., the characteristics of whic...

journal_title：Planta

authors： Catterou M,Dubois F,Schaller H,Aubanelle L,Vilcot B,Sangwan-Norreel BS,Sangwan RS

更新日期：2001-04-01 00:00:00

abstract：MAIN CONCLUSION:Our study demonstrated that symplasmic communication between Sedum acre seed compartments and the embryo proper is not uniform. The presence of plasmodesmata (PD) constitutes the structural basis for information exchange between cells, and symplasmic communication is involved in the regulation of cell d...

journal_title：Planta

authors： Wróbel-Marek J,Kurczyńska E,Płachno BJ,Kozieradzka-Kiszkurno M

更新日期：2017-03-01 00:00:00

abstract：:Photoinhibition of photosynthesis was induced in attached leaves of kiwifruit grown in natural light not exceeding a photon flux density (PFD) of 300 μmol·m(-2)·s(-1), by exposing them to a PFD of 1500 μmol·m(-2)·s(-1). The temperature was held constant, between 5 and 35° C, during the exposure to high light. The kine...

journal_title：Planta

authors： Greer DH,Laing WA,Kipnis T

更新日期：1988-05-01 00:00:00

abstract：:The moss Fontinalis antipyretica, an aquatic bryophyte previously described as desiccation-intolerant, is known to survive intermittent desiccation events in Mediterranean rivers. To better understand the mechanisms of desiccation tolerance in this species and to reconcile the apparently conflicting evidence between d...

journal_title：Planta

authors： de Carvalho RC,Branquinho C,da Silva JM

更新日期：2011-07-01 00:00:00

abstract：:Benzoic acids are precursors of xanthone biosynthesis which has been studied in cell cultures of Hypericum androsaemum (Hypericaceae) and Centaurium erythraea (Gentianaceae). In both cell cultures, methyl jasmonate induces the intracellular accumulation of a new xanthone. Under these inductive conditions, feeding expe...

journal_title：Planta

authors： Abd El-Mawla AM,Schmidt W,Beerhues L

更新日期：2001-01-01 00:00:00

abstract：:Yield is the most important and complex trait for genetic improvement in crops, and marker-assisted selection enhances the improvement efficiency. The USDA rice mini-core collection derived from over 18,000 accessions of global origins is an ideal panel for association mapping. We phenotyped 203 O. sativa accessions f...

journal_title：Planta

authors： Li X,Yan W,Agrama H,Jia L,Shen X,Jackson A,Moldenhauer K,Yeater K,McClung A,Wu D

更新日期：2011-08-01 00:00:00

abstract：:In order to investigate the role of acetyl CoA carboxylase (ACC) in the regulation of fatty-acid biosynthesis in chloroplasts, the activities and relative amounts of the enzyme have been measured in the tissue of wheat (Triticum aestivum L.) leaves undergoing development and cellular differentiation. The total activit...

journal_title：Planta

authors： Hawke JC,Leech RM

更新日期：1987-08-01 00:00:00

abstract：:The effects of O2, growth-regulators and desiccation on callus growth and somatic embryo (embryoid) development were investigated in cultures of immature embryos of two lines of Triticum aestivum L. Callus and embryoid formation were induced on media that contained N(6)-furfurylamin-opurine (kinetin) and either 2,4-di...

journal_title：Planta

authors： Carman JG

更新日期：1988-09-01 00:00:00

abstract：MAIN CONCLUSION:Distribution of Conyza species is well correlated with human interference. Multiple herbicide resistance is caused by the attempt to overcome resistance to one mode of action by overuse of another. Conyza canadensis (CC) and Conyza bonariensis (CB) are troublesome weeds around the world. Extensive use o...

journal_title：Planta

authors： Matzrafi M,Lazar TW,Sibony M,Rubin B

更新日期：2015-07-01 00:00:00