Effect of osmotic stress on abscisic acid levels in xylem sap of sunflower (Helianthus annuus L.).

abstract：:From the initial discovery of free-running endogenous circadian oscillations of Crassulacean acid metabolism (CAM) under constant conditions in the light and in air, it has been disputed whether the underlying oscillator is enzymic or biophysical. The hypothesis of a biophysical hysteresis switch or beat oscillator st...

journal_title：Planta

authors： Lüttge U

更新日期：2000-11-01 00:00:00

abstract：:Three-week-old protonemata of Funaria hygrometrica Hedw. cultivated in Petri dishes tolerate slow drying (24 h to complete dryness) but not rapid drying (1h to complete dryness). Slowly dried mosses show, on a dry-weight basis, a sixfold increase in abscisic-acid (ABA) contents during the drying process. Rehydrated, s...

journal_title：Planta

authors： Werner O,Ros Espín RM,Bopp M,Atzorn R

更新日期：1991-12-01 00:00:00

abstract：:Sphagnum magellanicum shows a remarkable variation in colour after the repeated application of cold shocks; mainly red wall pigments are synthesized. An attempt was made to find out in which way the gas exchange of Sphagnum magellanicum under defined conditions is altered after the application of cold shocks.The light...

journal_title：Planta

authors： Rudolph H

更新日期：1968-03-01 00:00:00

abstract：:Three peroxidase isoenzyme-groups found in cell walls of tobacco were tested for their capacity to form H2O2. Isoenzyme-group GI, located only in cell walls (GII and GIII are also found in protoplasts) showed the highest Kapp-value for H2O2-formation. The lowest Kapp-value, i.e., maximal H2O2-formation was received fo...

journal_title：Planta

authors： Mäder M,Ungemach J,Schloß P

更新日期：1980-02-01 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：:Numerical values which define the relative limitation of photosynthesis by light and CO2 were computed from the slopes of light-and CO2-response curves of photosynthesis. This method offers an easy approach for the characterization of photosynthesis of leaves. ...

journal_title：Planta

authors： Dietz KJ

更新日期：1986-02-01 00:00:00

abstract：MAIN CONCLUSION:Two novel QTLs for early seedling growth in rice were fine mapped, with one of which to a 4-kb identical to the known GW6a gene, and another one to a 43-kb region that contains six candidate genes. Leaves are extremely important for plant photosynthesis: the size and shape of which determine the rate of...

journal_title：Planta

authors： Cheng P,Cao LJ,Bai C,Ashikari M,Song XJ

更新日期：2021-02-01 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：:The isotopic composition of the carbon (δ(13)C values) of leaf tissue from 10 species and hybrids of orchids grown in Singapore fell into two groups, one having a mean value of-15.4‰, the other-26.6‰. The least negative of these values was associated with thick-leaved plants (0.2-0.4 mm). This is consistent with the v...

journal_title：Planta

authors： Neales TF,Hew CS

更新日期：1975-01-01 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：:Gibberellic acid (GA3) stimulates isocitrate lyase activity of the endosperm during germination of castor bean seeds. Isocitrate lyase from castor bean was purified and an antibody to it was prepared from rabbit serum. This antibody was used to measure the amounts of isocitrate lyase-mRNA using an in vitro translation...

journal_title：Planta

authors： Martin C,Northcote DH

更新日期：1982-03-01 00:00:00

abstract：:A particulate preparation from developing cotyledons of Phaseolus vulgaris L. was incubated with uridine-5'-diphospho-N-acetyl-D-glucosamine (UDP-GlcNAc; [6-(3)H]glucosamine), and by polyacrylamide gel electrophoretic analysis it was shown that the labeled (N-acetyl)glucosamine (GlcNAc) was incorporated into the princ...

journal_title：Planta

authors： Davies HM,Delmer DP

更新日期：1979-09-01 00:00:00

abstract：:The models explaining root gravitropism propose that the growth response of plants to gravity is regulated by asymmetric distribution of auxin (indole-3-acetic acid, IAA). Since cytokinin has a negative regulatory role in root growth, we suspected that it might function as an inhibitor of tropic root elongation during...

journal_title：Planta

authors： Aloni R,Langhans M,Aloni E,Ullrich CI

更新日期：2004-11-01 00:00:00

abstract：MAIN CONCLUSION:Eucalyptus camaldulensis EcDQD/SDH2 and 3 combine gallate formation, dehydroquinate dehydratase, and shikimate dehydrogenase activities. They are candidates for providing the essential gallate for the biosynthesis of the aluminum-detoxifying metabolite oenothein B. The tree species Eucalyptus camaldulen...

journal_title：Planta

authors： Tahara K,Nishiguchi M,Funke E,Miyazawa SI,Miyama T,Milkowski C

更新日期：2020-12-21 00:00:00

abstract：:FLOWERING LOCUS C (FLC) is a central floral repressor for the determination of flowering time in Arabidopsis. FLC expression is reactivated upon fertilization and regulated during seed development to ensure the appropriate floral behavior; however, the molecular mechanism for this process is largely unknown. Here, we ...

journal_title：Planta

authors： Yun H,Hyun Y,Kang MJ,Noh YS,Noh B,Choi Y

更新日期：2011-12-01 00:00:00

abstract：:The developmental morphology and growth dynamics of the leaf of Nicotiana tabacum L. cv. Xanthi Nc. are described. Epidermal and internal cell patterns indicate that the leaf axis arises from approx. 100 cells in four layers of the shoot apex, while the lamina arises from several rows of cells in each of three layers ...

journal_title：Planta

authors： Poethig RS,Sussex IM

更新日期：1985-08-01 00:00:00

abstract：:The freshwater algaChara corallina Klein ex Willd., em. R.D.W. (=C. australis R.Br.) develops alternating outward (acid) and inward (alkaline) current areas on its surface when illuminated. Exposure of cells to vinblastine, colchicine, or oryzalin caused a reduction in and a shifting of this extracellular current patt...

journal_title：Planta

authors： Fisahn J,Lucas WJ

更新日期：1990-11-01 00:00:00

abstract：:The inductive effect of short-day (SD) cycles on floral-bud initiation in Impatiens balsamina was enhanced and the minimum requirement for SD cycles for flowering reduced by intercalated long days (LDs). Thus, floral buds developed into flowers with only 4 SD cycles in plants receiving them individually or in pairs al...

journal_title：Planta

authors： Toky KL,Nanda KK

更新日期：1969-06-01 00:00:00

abstract：:Expression of genes in plant chloroplasts provides an opportunity for enhanced production of target proteins. We report the introduction and expression of a fusion DPT protein containing immunoprotective exotoxin epitopes of Corynebacterium diphtheriae, Bordetella pertussis, and Clostridium tetani in tobacco chloropla...

journal_title：Planta

authors： Soria-Guerra RE,Alpuche-Solís AG,Rosales-Mendoza S,Moreno-Fierros L,Bendik EM,Martínez-González L,Korban SS

更新日期：2009-05-01 00:00:00

abstract：:Leaf tissue of the panicoid grass Pennisetum purpureum (Schum) and of the chloridoid grass Muhlenbergia montana (Hitchcock) were fractionated to produce preparations enriched in the contents of mesophyll and bundle sheath cells. Sucrose phosphate synthetase and sucrose synthetase were found predominantly in the mesoph...

journal_title：Planta

authors： Bucke C,Oliver IR

更新日期：1975-01-01 00:00:00

abstract：:Mixed membrane preparations from the coleoptiles and first leaves of young barley (Hordeum vulgare L. cv. Triumph) plants catalysed the synthesis of 55% methanol-insoluble labelled material from UDP-[U-14C]glucose, the main components of which were identified as (1,3)(1,4)-beta- and (1,3)-beta-D-glucans. The membrane ...

journal_title：Planta

authors： Becker M,Vincent C,Reid JS

更新日期：1995-01-01 00:00:00

abstract：:The basic helix-loop-helix (bHLH) transcription factors (TFs) comprise one of the largest families of TFs involved in developmental and physiological processes in plants. Here, we describe the functional characterization of two bHLH TFs (NtAn1a and NtAn1b) isolated from tobacco (Nicotiana tabacum) flowers. NtAn1a and ...

journal_title：Planta

authors： Bai Y,Pattanaik S,Patra B,Werkman JR,Xie CH,Yuan L

更新日期：2011-08-01 00:00:00

abstract：:To test the morphogenetic role of equilateral stress and physiological confinement in dedifferentiation of epidermal cells, impermeable barriers of goldmetal foil were placed between the postgenitally fusing epidermal surfaces in the gynoecium of Catharanthus roseus (L.) G. Don. Cells contacting the foil barrier were ...

journal_title：Planta

authors： Walker DB

更新日期：1978-01-01 00:00:00

abstract：:Indole-3-acetic acid (IAA) promotes an increase in steady-state heat production by corn (Zea mays L.) coleoptile tissue; this increase is associated with an elevation in aerobic respiration rates. A detailed time dependence of the exothermic response to IAA was obtained using flow calorimetry. The latent period and ma...

journal_title：Planta

authors： Anderson PC,Lovrien RE,Brenner ML

更新日期：1981-05-01 00:00:00

abstract：:1. The following acid hydrolases are partially sedimentable from cell-free extracts of corn seedlings: protease (pH-optimum 4,2), phosphatase (pH-optimum 5,0 and 6,5), unspecific esterase (pH-optimum 5,2), RNase (pH-optimum 6,5), arylsulphatase-C (pH-optimum 5,0) and α- and β-amylase (pH-optimum 7,0 and 5,0 respective...

journal_title：Planta

authors： Semadeni EG

更新日期：1966-03-01 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 movement of (14)C from indole-3-acetic acid (IAA) (14)C has been examined in 5 mm root segments of dark-grown seedlings of Helianthus annuus and Brassica oleracea. Contaminants from distilled water, phosphate buffer and the razor-blade cutter increase the decarboxylation of IAA-(14)C, and cutting of root segments ...

journal_title：Planta

authors： Iversen TH,Aasheim T

更新日期：1970-12-01 00:00:00

abstract：:Two-year old saplings grown from cuttings of Cryptomeria japonica D. Don initiate strobilus development following treatment with gibberellic acid under long-day photoperiods. At 25 degrees C with a 14-h photoperiod in a phytotron, male strobili initiated normally; however, they remained green and fell from the sapling...

journal_title：Planta

authors： Fukui M

更新日期：2003-11-01 00:00:00

abstract：:Eucommia ulmoides Oliver is one of a few woody plants capable of producing abundant quantities of trans-polyisoprene rubber in their leaves, barks, and seed coats. One cDNA library each was constructed from its outer stem tissue and inner stem tissue. They comprised a total of 27,752 expressed sequence tags (ESTs) rep...

journal_title：Planta

authors： Suzuki N,Uefuji H,Nishikawa T,Mukai Y,Yamashita A,Hattori M,Ogasawara N,Bamba T,Fukusaki E,Kobayashi A,Ogata Y,Sakurai N,Suzuki H,Shibata D,Nakazawa Y

更新日期：2012-11-01 00:00:00

abstract：:When (3)H-(14)C-acetate was supplied to Chlorella pyrenoidosa in the light, glycollic acid became rapidly labelled with tritium and (14)C. The [Formula: see text]ratio of glycollate was 10, whilst the ratio was 4 in the acetate added. Both (3)H and (14)C from acetate were present in glycollate before they were present...

journal_title：Planta

authors： Merrett MJ,Goulding KH

更新日期：1967-09-01 00:00:00