Determination of specific growth stages of plant cell suspension cultures by monitoring conductivity changes in the medium.

abstract：:Rhodococcus fascians is a Gram-positive bacterium that infects dicotyledonous and monocotyledonous plants, leading to an alteration in the normal growth process of the host. The disease results from the modulation of the plant hormone balances, and cytokinins are thought to play an important role in the induction of s...

journal_title：Planta

authors： Vereecke D,Burssens S,Simón-Mateo C,Inzé D,Van Montagu M,Goethals K,Jaziri M

更新日期：2000-01-01 00:00:00

abstract：:C2H4 production of the embryonic axes and cotyledons excised from dormant and non-dormant cocklebur (Xanthium pennsylvanicum Wallr.) seeds was examined in relation to ambient O2 tensions. There were two kinds of C2H4-producing systems, quasi-anaerobic and aerobic, in both organs. Regardless of the organ, the former ac...

journal_title：Planta

authors： Esashi Y,Ohhara Y,Kotaki K,Watanabe K

更新日期：1976-01-01 00:00:00

abstract：:Solutions of organic substances show differing influences on the direction of phloem transport of (14)C-labeled assimilates in predarkened maize leaf strips, when externally applied to one end of the strip. One group of substances "pushes" the assimilates away from the site of application. Examples of this group are 7...

journal_title：Planta

authors： Heyser W,Heyser R,Eschrich W,Leonard OA,Rautenberg M

更新日期：1976-01-01 00:00:00

abstract：:Equisetaceae has been of research interest for decades, as it is one of the oldest living plant families, and also due to its high accumulation of silica up to 25% dry wt. Aspects of silica deposition, its association with other biomolecules, as well as the chemical composition of the outer strengthening tissue still ...

journal_title：Planta

authors： Gierlinger N,Sapei L,Paris O

更新日期：2008-04-01 00:00:00

abstract：:Vomifoliol, a compound related to abscisic acid (ABA) but lacking the 2,4-pentadiene sidechain and so far found in four different plant families, caused as much stomatal closure in epidermal strips of Eichhornia crassipes (Mart.) Solms as ABA at identical concentrations. It appears worthwhile to investigate whether vo...

journal_title：Planta

authors： Stuart KL,Coke LB

更新日期：1975-01-01 00:00:00

abstract：:The effect of low concentrations of 3,5-diiodo-4-hydroxybenzoic acid (DIHB) in promoting the elongation of light-exposed cress (Lepidium sativum L.) roots has been further examined. Aeration of the DIHB solution in which the roots were grown largely removed the growth promotion. The addition of ethylene or the ethylen...

journal_title：Planta

authors： Larqué-Saavedra A,Wilkins H,Wain RL

更新日期：1975-01-01 00:00:00

abstract：:We have investigated events which take place in the developing barley (Hordeum vulgare L.) embryo during its acquisition of desiccation tolerance. Excised embryos are capable of precocious germination as early as 8 d after pollination (DAP). At this age, however, they are not capable of resisting a desiccation treatme...

journal_title：Planta

authors： Bartels D,Singh M,Salamini F

更新日期：1988-10-01 00:00:00

abstract：:Sorghum plants that had been subjected to different degrees of water stress were examined for the occurrence of endogenous compounds capable of inducing stomatal closure, i.e. "antitranspirants". Acidic extracts contained increased amounts of abscisic acid (ABA) as the amount of stress increased, but another highly ac...

journal_title：Planta

authors： Ogunkanmi AB,Wellbern AR,Mansfield TA

更新日期：1974-12-01 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：:1. Photosynthesis of leaf slices, mesophyll protoplasts, and intact chloroplasts of spinach was inhibited in hypertonic sorbitol solutions. Sorbitol could be replaced by other nonpenetrating osmotica such as sucrose or glycinebetaine. As a penetrating solute, ethyleneglycol was also inhibitory, but osmolarities requir...

journal_title：Planta

authors： Kaiser WM,Kaiser G,Prachuab PK,Wildman SG,Heber U

更新日期：1981-12-01 00:00:00

abstract：:Cotton fiber is an extremely long plant cell. Fiber elongation is a complex process and the genes that are crucial for elongation are largely unknown. We previously cloned a cDNA encoding an isoform of cotton profilin and found that the gene (designated GhPFN1) was preferentially expressed in cotton fibers. In the pre...

journal_title：Planta

authors： Wang HY,Yu Y,Chen ZL,Xia GX

更新日期：2005-11-01 00:00:00

abstract：:The soluble fraction of a cell-free system from immature seeds of Phaseolus vulgaris L. converts gibberellin A20 (GA20) to GA1 and GA5. It does however not metabolize GA1 and GA29 to GA5, showing that in this system GA20 is converted directly to GA5. The steps from GA20 to GA1 (3-hydroxylation) and from GA20 to GA5 (Δ...

journal_title：Planta

authors： Kamiya Y,Takahashi M,Takahashi N,Graebe JE

更新日期：1984-09-01 00:00:00

abstract：:Soluble proteins from leaves of Nicotiana glauca Grah., N. langsdorffii Weinm., their reciprocal hybrids and amphiploid hybrid (N. glaucaxN. langsdorffii) were resolved by two-dimensional gel electrophoresis. Among a group of well-resolved polypeptides, in the isoelectric-point range of 5-5.5 and relative-molecular-ma...

journal_title：Planta

authors： Hua SB,Dube SK,Barnett NM,Kung SD

更新日期：1989-10-01 00:00:00

abstract：:Gibberellic acid (GA3), indole-3-acetic acid (IAA) or kinetin ((6)N-furfurylaminopurine) applied to the apical regions of decapitated stems of derooted Phaseolus vulgaris plants, promoted (14)C-photosynthate transport to the site of hormone application. Hormonal promotion of acropetal photosynthate transport was assoc...

journal_title：Planta

authors： Hayes PM,Patrick JW

更新日期：1985-11-01 00:00:00

abstract：MAIN CONCLUSION:Global warming will increase the incidence of metabolism-based reduced herbicide efficacy on weeds and, therefore, the risk for evolution of non-target site herbicide resistance. Climate changes affect food security both directly and indirectly. Weeds are the major biotic factor limiting crop production...

journal_title：Planta

authors： Matzrafi M,Seiwert B,Reemtsma T,Rubin B,Peleg Z

更新日期：2016-12-01 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 effects of desiccation on the early development stages of Mazzaella laminarioides, Scytosiphon lomentaria and Lessonia nigrescens, algal species with different patterns of distribution across the intertidal zone, were examined in the laboratory. In addition, the protective effect against desiccation was evaluated ...

journal_title：Planta

authors： Contreras-Porcia L,Callejas S,Thomas D,Sordet C,Pohnert G,Contreras A,Lafuente A,Flores-Molina MR,Correa JA

更新日期：2012-02-01 00:00:00

abstract：:Irradiation of buoyant, gas-vacuolate cells of the cyanobacteriumMicrocystis aeruginosa by 5·10(4) Wm(-2) of blue light for 1 h caused a 5% loss of extractable ribulose bisphosphate carboxylase activity compared to dark and red-light controls. Ribulose bisphosphate carboxylase activity was unaffected by blue light in ...

journal_title：Planta

authors： Stewart R,Codd GA

更新日期：1980-01-01 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：:Plants are exposed to a wide range of toxic and bioactive low-molecular-weight molecules from both exogenous and endogenous sources. Glycosylation is one of the primary sedative mechanisms that plants utilise in order to maintain metabolic homeostasis. Recently, a range of glycosyltransferases has been characterized i...

journal_title：Planta

authors： Jones P,Vogt T

更新日期：2001-06-01 00:00:00

abstract：:Quinate: NAD(+) oxidoreductase (EC 1.1.1.24) from carrot cells was deactivated by incubating partially purified extract with MgCl2 at 30°C. The deactivation process was prevented by adding fluoride, a phosphatase inhibitor. Once inactivated, the enzyme could recover its initial activity on incubation with ATP-Mg eithe...

journal_title：Planta

authors： Refeno G,Ranjeva R,Boudet AM

更新日期：1982-05-01 00:00:00

abstract：:Phytochrome per fresh weight in the apical 0.5 cm of the 1.5-cm coleoptile was twice that in the basal 0.5 cm; phytochrome per dry weight and phytochrome per DNA did not vary significantly from the base to the apex. Ratios of phytochrome to fresh or dry weight in the 6-cm coleoptile were nearly constant in the basal 5...

journal_title：Planta

authors： Correll DL,Edwards JL,Medina VJ

更新日期：1968-12-01 00:00:00

abstract：:Fungal mycelium of the fly agaric (Amanita muscaria [L. ex Fr.] Hooker), and inoculated or noninoculated seedlings of Norway spruce (Picea abies [L.] Karst.) were grown aseptically under controlled conditions. In order to detect symbiosis-specific polypeptides ('ectomycorrhizins', see Hubert and Martin, 1988, New Phyt...

journal_title：Planta

authors： Guttenberger M,Hampp R

更新日期：1992-03-01 00:00:00

abstract：:In plants, chlorophyll is actively synthesized from glutamate in the developmental phase and is degraded into non-fluorescent chlorophyll catabolites during senescence. The chlorophyll metabolism must be strictly regulated because chlorophylls and their intermediate molecules generate reactive oxygen species. Many mec...

journal_title：Planta

authors： Nagane T,Tanaka A,Tanaka R

更新日期：2010-03-01 00:00:00

abstract：:Polyamine levels and the activities of two polyamine biosynthetic enzymes, arginine decarboxylase (EC 4.1.1.19) and S-adenosylmethionine decarboxylase (EC 4.1.1.50), were determined during somatic embryogenesis of carrot (Daucus carota L.) cell cultures. Embryogenic cultures showed severalfold increases in polyamine l...

journal_title：Planta

authors： Fienberg AA,Choi JH,Lubich WP,Sung ZR

更新日期：1984-12-01 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：MAIN CONCLUSION:The triggers of genetic instability in barley homeotic double mutants are tweaky spike -type mutations associated with an auxin imbalance in separate spike phytomeres. Barley homeotic tweaky spike;Hooded (tw;Hd) double mutants are characterized by an inherited instability of spike and flower development...

journal_title：Planta

authors： Šiukšta R,Vaitkūnienė V,Rančelis V

更新日期：2018-02-01 00:00:00

abstract：:The light-growth response of Phycomyces blakesleeanus (Burgeff) is a transient change in elongation rate of the sporangiophore caused by a change in light intensity. Previous investigators have found that the light-growth response has many features in common with phototropism; the major difference is that only the lig...

journal_title：Planta

authors： Ensminger PA,Schaefer HR,Lipson ED

更新日期：1991-07-01 00:00:00

abstract：:Alkaloid uptake into vacuoles isolated from a Fumaria capreolata L. cell suspension culture was investigated. The uptake is carrier-mediated as shown by its substrate saturation, its sensitivity to metabolic inhibitors and especially by its exclusive preference for the (S)-forms of reticuline and scoulerine while the ...

journal_title：Planta

authors： Deus-Neumann B,Zenk MH

更新日期：1986-01-01 00:00:00

abstract：:The effects of growth retardants, 4-hydroxy-5-isopropyl-2-methylphenyltrimethylammonium chloride-1-piperidine carboxylate (AMO-1618 or AMO) and 2-chloroethyltrimethylammonium chloride (CCC), applied with and without gibberellic acid (GA3), on β-[(3)H]alanine uptake and leakage from pea (Pisum sativum L.) and betacyani...

journal_title：Planta

authors： Fabijan DM,Dhindsa PP,Reid DM

更新日期：1981-10-01 00:00:00