Conversion of gibberellin A20 to gibberellins A 1 and A 5 in a cell-free system from Phaseolus vulgaris.

abstract：:Dormancy in intact seeds of Ruellia humilis is broken by chilling or by treatment with gibberellic acid (GA3). Embryos are nondormant and will grow when the seed coat is removed completely. Embryos from chilled or GA3-treated seeds have more growth potential than embryos from nontreated seeds. Dormancy is ascribed to ...

journal_title：Planta

authors： Baskin JM,Baskin CC

更新日期：1971-12-01 00:00:00

abstract：:The ultrastructure of root cells of the germinating corn embryo has been studied during the first 72 hours of soaking. The most spectacular ultrastructural modifications occur in the nucleus. In the dry seed, the chromatin is heavily condensed and complete dispersion occurs during the first 8 hr of germination. The nu...

journal_title：Planta

authors： Deltour R,Bronchart R

更新日期：1971-09-01 00:00:00

abstract：:Developing wheat (Triticum aestivum L.) endosperm was examined using ultrathin sections prepared from tissues harvested at 5, 9, 16 and 25 d after flowering. Protein bodies were evident by 9 d and displayed a variety of membranous structures and inclusions. The Golgi apparatus was a prominent organelle at all stages, ...

journal_title：Planta

authors： Kim WT,Franceschi VR,Krishnan HB,Okita TW

更新日期：1988-11-01 00:00:00

abstract：:On intact, 3-week-old plants of Phaseolus the larger bud in the axils of the primary leaves shows slow, continuous elongation growth. Release from correlative inhibition can be detected within 30 min following decapitation. When 0.1% indoleacetic acid in lanolin is applied to the decapitated stem stump, the lateral bu...

journal_title：Planta

authors： Hall SM,Hillman JR

更新日期：1975-01-01 00:00:00

abstract：:Phosphate absorption by segments excised from hypocotyls of Phaseolus aureus Roxb. was inhibited by either continuous or short-term illumination with red light. Maximal inhibition was observed at pH 6.5. Illumination with 800 erg cm(-2) s(-1) of red light for 5 min was sufficient to obtain maximal inhibition. The effe...

journal_title：Planta

authors： Tezuka T,Yamamoto Y

更新日期：1975-01-01 00:00:00

abstract：:Uptake of NH 4 (+) and NO 3 (-) by the N2-fixing lichens Peltigera praetextata (two-component lichen) and P. aphthosa (three-component lichen) was studied. In addition, the effects of these ions, separately and in combination, on C2H2 reduction and CO2 exchange were examined. Both NH 4 (+) and NO 3 (-) were utilized b...

journal_title：Planta

authors： Hällbom L,Bergman B

更新日期：1983-04-01 00:00:00

abstract：:Several lines of evidence indicate that the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene by microsomal membranes from carnation flowers is attributable to hydroperoxides generated by membrane-associated lipoxygenase (EC 1.13.11.12). As the flowers senesce, the capability of isolated microsomal...

journal_title：Planta

authors： Lynch DV,Sridhara S,Thompson JE

更新日期：1985-05-01 00:00:00

abstract：:Two types of plasmodesmata are found within an antheridium of Chara vulgaris: open plasmodesmata filled with electron-transparent cytoplasm, and plugged plasmodesmata, filled with an osmiophilic dense substance. Open plasmodesmata occur only between cells synchronized completely in respect of their advancement in cell...

journal_title：Planta

authors： Kwiatkowska M,Maszewski J

更新日期：1985-09-01 00:00:00

abstract：:α-Galactosidase II(2) (MW ∼ 43 390) from resting Vicia faba L. seeds had been shown to possess D-glucose/D-mannose-specific lectin activity. Inhibition studies with monosaccharides and an examination of the effects of heat and pH on the catalytic and lectin activities of the enzyme indicate that the enzyme substrate a...

journal_title：Planta

authors： Dey PM,Naik S,Pridham JB

更新日期：1986-01-01 00:00:00

abstract：:A manganese-containing superoxide dismutase (EC 1.15.1.1) was purified to homogeneity from a higher plant for the first time. The enzyme was isolated fromPisum sativum leaf extracts by thermal fractionation, ammonium sulfate salting out, ion-exchange and gel-filtration column chromatography, and preparative polyacryla...

journal_title：Planta

authors： Sevilla F,López-Gorgé J,Gómez M,Del Río LA

更新日期：1980-01-01 00:00:00

abstract：:Exogenous gibberellic acid, A3 (GA3) inhibits phytochrome mediated betacyanin synthesis in seedlings of Amaranthus caudatus. The growth retardants, β-chloroethyl-trimethylammonium chloride (CCC), 'isopropyl-4'-(triethylammonium chloride)-5'-methylphenyl piperidine carboxylate (AMO 1618) and tributyl-2,4,-dichlorobenzy...

journal_title：Planta

authors： Kinsman LT,Pinfield NJ,Stobart AK

更新日期：1975-01-01 00:00:00

abstract：:Biphenyls are unique phytoalexins produced by plants belonging to Pyrinae, a subtribe of the economically important Rosaceae family. The formation of aucuparin, a well-known biphenyl, is induced by yeast extract (YE) in cell cultures of Sorbus aucuparia. However, the molecular mechanism underlying YE-induced activatio...

journal_title：Planta

authors： Qiu X,Lei C,Huang L,Li X,Hao H,Du Z,Wang H,Ye H,Beerhues L,Liu B

更新日期：2012-01-01 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：:In maize and other grasses there is a developmental gradient from the meristematic cells at the base of the stalk to the differentiated cells at the leaf tip. This gradient presents an opportunity to investigate changes in mitochondrial DNA (mtDNA) that accompany growth under light and dark conditions, as done previou...

journal_title：Planta

authors： Oldenburg DJ,Kumar RA,Bendich AJ

更新日期：2013-02-01 00:00:00

abstract：:Red light (R) and gibberellins (GA) each induce a water potential decrease in the axes of lettuce (Lactuca sativa L.) embryos resulting in germination of intact "seeds" (achenes) or an increase in growth of the axes of isolated embryos. The fruit coat and endosperm are a substantial barrier to the penetration of exoge...

journal_title：Planta

authors： Carpita NC,Nabors MW

更新日期：1981-06-01 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：:A comparison was made of the activity of carboxydismutase (ribulose-1,5-diphosphate carboxylase) between higher plant species which possess the β-carboxylation (C4-dicarboxylic acid) pathway for photosynthesis and species which lack this pathway. Contrary to earlier findings no marked difference in the level of this e...

journal_title：Planta

authors： Björkman O,Gauhl E

更新日期：1969-09-01 00:00:00

abstract：:Helminthosporol, helminthosporic acid, dihydrohelminthosporic acid, and steviol have been tested for their ability to induce antheridium formation in Anemia phyllitidis. All helminthosporol derivatives posses a limited but real activity. Steviol proved to be inactive.All the substance tested have a significant effect ...

journal_title：Planta

authors： Schraudolf H

更新日期：1967-06-01 00:00:00

abstract：:During sexual differentiation, Chlamydomonas reinhardtii changes its chemotactic behavior in response to ammonium. Just like gamete formation, the change in chemotaxis mode is controlled by the sequential action of two environmental cues, removal of ammonium or nitrate from the medium and light. Thus, vegetative cells...

journal_title：Planta

authors： Ermilova EV,Zalutskaya ZM,Huang K,Beck CF

更新日期：2004-07-01 00:00:00

abstract：:Gibberellin (GA) biosynthesis in cell-free systems from Cucurbita maxima L. endosperm was reinvestigated using incubation conditions different from those employed in previous work. The metabolism of GA12 yielded GA13, GA43 and 12α-hydroxyGA43 as major products, GA4, GA37, GA39, GA46 and four unidentified compounds as ...

journal_title：Planta

authors： Lange T,Hedden P,Graebe JE

更新日期：1993-03-01 00:00:00

abstract：:Through the use of gas chromatography-mass spectrometry techniques two simple brominated phenols, 2,3-dibromo-4,5-dihydroxybenzyl alcohol (lanosol) and 3,5-dibromo-p-hydroxybenzyl alcohol, were identified in an axenically cultured bluegreen alga, Calothrix brevissima. The alga was grown in a mineral medium supplemente...

journal_title：Planta

authors： Pedersén M,Dasilva EJ

更新日期：1973-03-01 00:00:00

abstract：:The occurrence and distribution of a multifunctional chaperonin-60 (cpn60), the GroEL protein, was demonstrated in the cyanobacterium Anabaena PCC 7120 by using a rabbit anti-GroEL (Escherichia coli) antibody. Western-blot analysis showed a distinct cross-reaction with a protein of approx. 65 kilodaltons, analogous to...

journal_title：Planta

authors： Jāger KM,Bergman B

更新日期：1991-12-01 00:00:00

abstract：:During ripening of grape (Vitis vinifera L.) berries, softening occurs concomitantly with the second growth phase of the fruit and involves significant changes in the properties of cell wall polysaccharides. Here, the activities of enzymes that might participate in cell wall modification have been monitored throughout...

journal_title：Planta

authors： Nunan KJ,Davies C,Robinson SP,Fincher GB

更新日期：2001-12-01 00:00:00

abstract：MAIN CONCLUSION:β-sitosterol influences amino acids, carbohydrates, organic acids, and other metabolite metabolism and homeostasis largely contributing to better tolerance to water stress in white clover. β-sitosterol (BS) could act as an important plant growth regulator when plants are subjected to harsh environmental...

journal_title：Planta

authors： Li Z,Cheng B,Yong B,Liu T,Peng Y,Zhang X,Ma X,Huang L,Liu W,Nie G

更新日期：2019-12-01 00:00:00

abstract：:Some 30% of the reserve material in the fenugreek seed is galactomannan localised in the endosperm; the remainder is mainly protein and lipid in the cotyledons of the embryo. The importance of galactomannan to the germinative physiology of fenugreek has been investigated by comparing intact and endosperm-free seeds. F...

journal_title：Planta

authors： Grant Reid JS,Derek Bewley J

更新日期：1979-12-01 00:00:00

abstract：:Aluminum (Al(3+)) has been recognized as a main toxic factor in crop production in acid lands. Phosphatidic acid (PA) is emerging as an important lipid signaling molecule and has been implicated in various stress-signaling pathways in plants. In this paper, we focus on how PA generation is affected by Al(3+) using Cof...

journal_title：Planta

authors： Ramos-Díaz A,Brito-Argáez L,Munnik T,Hernández-Sotomayor SM

更新日期：2007-01-01 00:00:00

abstract：:Nucellar-derived cell cultures of sour orange (Citrus aurantium L.) proliferate as proembryogenic masses. By a change in the carbon source of the medium from sucrose to glycerol they are induced to undergo synchronous embryogenesis forming embryo initials that develop into globular embryos. The proembryogenic masses r...

journal_title：Planta

authors： Gavish H,Vardi A,Fluhr R

更新日期：1992-03-01 00:00:00

abstract：:By comparing (32)P-orthophosphate incorporation into nucleic acid extracts of sterile and non-sterile radish leaf discs, it was shown that contaminating bacteria cause a 2-4 fold increase in the rate of precursor incorporation and alter the pattern of label distribution after fractionation of the extracts by sedimenta...

journal_title：Planta

authors： Burdett AN,Wareing PF

更新日期：1968-03-01 00:00:00

abstract：:Plastid DNA, like bacterial and mitochondrial DNA, is organized into protein-DNA complexes called nucleoids. Plastid nucleoids are believed to be associated with the inner envelope in developing plastids and the thylakoid membranes in mature chloroplasts, but the mechanism for this localization is unknown. MFP1 is a D...

journal_title：Planta

authors： Jeong SY,Peffer N,Meier I

更新日期：2004-06-01 00:00:00

abstract：:Aspartic proteinase (EC 3.4.23) activity plays a pivotal role in the degradation of Theobroma cacao L. seed proteins during the fermentation step of cacao bean processing. Therefore, this enzyme is believed to be critical for the formation of the peptide and amino acid cocoa flavor precursors that occurs during fermen...

journal_title：Planta

authors： Laloi M,McCarthy J,Morandi O,Gysler C,Bucheli P

更新日期：2002-09-01 00:00:00