Cytokinins from the Moss Physcomitrella patens.

abstract：:The components in plant signal transduction pathways are intertwined and affect each other to coordinate plant growth, development, and defenses to stresses. The role of ubiquitination in connecting these pathways, particularly plant innate immunity and flowering, is largely unknown. Here, we report the dual roles for...

journal_title：Plant physiology

authors： Li W,Ahn IP,Ning Y,Park CH,Zeng L,Whitehill JG,Lu H,Zhao Q,Ding B,Xie Q,Zhou JM,Dai L,Wang GL

更新日期：2012-05-01 00:00:00

abstract：:Wheat (Triticum aestivum L. cv Etoile de Choisy) microsomes catalyzed the cytochrome P-450-dependent oxidation of the herbicide diclofop to three hydroxy-diclofop isomers. Hydroxylation was predominant at carbon 4, with migration of chlorine to carbon 5 (67%) and carbon 3 (25%). The 2,4-dichloro-5-hydroxy isomer was i...

journal_title：Plant physiology

authors： Zimmerlin A,Durst F

更新日期：1992-10-01 00:00:00

abstract：:Enzymic treatment of mature, anthocyanin-containing grape berry sub-epidermal tissues from DeChaunac grapes released intact protoplasts. Filtration of the protoplast suspension through glass wool under mild suction resulted in the release of vacuoles. The total and individual contents of anthocyanins, flavonol glycosi...

journal_title：Plant physiology

authors： Moskowitz AH,Hrazdina G

更新日期：1981-09-01 00:00:00

abstract：:Exposing hybrid poplar (Populus maximowizii x trichocarpa) plants to ozone (O3) resulted in an acceleration of the visual symptoms of senescence and a decrease in the activity and quantity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). Whole plants, crude leaf extracts, and isolated intact chloroplasts ...

journal_title：Plant physiology

authors： Landry LG,Pell EJ

更新日期：1993-04-01 00:00:00

abstract：:Timing of flowering is not only an interesting topic in developmental biology, but it also plays a significant role in agriculture for its effects on the maturation time of seed. The hexaploid wheat (Triticum aestivum) is one of the most important crop species whose flowering time, i.e. heading time, greatly influence...

journal_title：Plant physiology

authors： Zhao XY,Hong P,Wu JY,Chen XB,Ye XG,Pan YY,Wang J,Zhang XS

更新日期：2016-03-01 00:00:00

abstract：:We describe the mechanical, electronic, hydraulic, and structural design of a nonrecirculating hydroponic system. The system is particularly suited to studies at very low nutrient concentrations, for which on-line concentration monitoring methods either do not exist or are costly and limited to monitoring relatively f...

journal_title：Plant physiology

authors： Gutschick VP,Kay LE

更新日期：1991-04-01 00:00:00

abstract：:The effect of a cold treatment on the carbohydrate status of the scales and flower stalk of Tulipa gesneriana L. cv Apeldoorn bulbs during growth after planting was studied and compared with bulbs not given cold treatment. Bulbs were stored dry for 12 weeks at 5[deg]C (precooled) or 17[deg]C (noncooled). Only the 5[de...

journal_title：Plant physiology

authors： Lambrechts H,Rook F,Kolloffel C

更新日期：1994-02-01 00:00:00

abstract：:Most eukaryotic cells require peroxisomes, organelles housing fatty acid β-oxidation and other critical metabolic reactions. Peroxisomal matrix proteins carry peroxisome-targeting signals that are recognized by one of two receptors, PEX5 or PEX7, in the cytosol. After delivering the matrix proteins to the organelle, t...

journal_title：Plant physiology

authors： Kao YT,Fleming WA,Ventura MJ,Bartel B

更新日期：2016-11-01 00:00:00

abstract：:The effects of water stress on nitrate reductase and nitrite reductase activities in symbiotic nodules were examined in field-grown soybean plants (Glycine max L Merr. cv Clark). The in vitro assays of enzyme activity indicated that the nodule cytosol and bacteroids contained both nitrate reductase and nitrite reducta...

journal_title：Plant physiology

authors： Chen CL,Sung JM

更新日期：1983-12-01 00:00:00

abstract：:Sucrose (Suc)-phosphate synthase (SPS) plays a crucial role in the synthesis of Suc in photosynthetic and nonphotosynthetic tissues. Several isoforms of SPS exist in dicotyledonous plants that can be grouped into the different families A, B, and C. To explore whether functional differences between the SPS gene familie...

journal_title：Plant physiology

authors： Chen S,Hajirezaei M,Börnke F

更新日期：2005-11-01 00:00:00

abstract：:Changes in cytoplasmic Ca2+ concentration ([Ca2+]i) have been proposed to be involved in signal transduction pathways in response to a number of stimuli, including gravity and touch. The current hypothesis proposes that the development of gravitropic bending is correlated with a redistribution of [Ca2+]i in gravistimu...

journal_title：Plant physiology

authors： Legué V,Blancaflor E,Wymer C,Perbal G,Fantin D,Gilroy S

更新日期：1997-07-01 00:00:00

abstract：:Dunaliella bardawil, a beta-carotene-accumulating halotolerant alga, has been analyzed for the effect of various growth conditions on its pigment content, and compared with Dunaliella salina, a beta-carotene nonaccumulating species. In D. bardawil, increasing light intensity and light period or inhibiting growth by va...

journal_title：Plant physiology

authors： Ben-Amotz A,Avron M

更新日期：1983-07-01 00:00:00

abstract：:The promoter of phytoene synthase, the first specific enzyme of carotenoid biosynthesis, shows two main regulatory regions: a G-box-containing region located near the TATA box, and a TATA box distal region containing the cis-acting element ATCTA, which mediates strong basal promoter activity. This second element was a...

journal_title：Plant physiology

authors： Welsch R,Maass D,Voegel T,Dellapenna D,Beyer P

更新日期：2007-11-01 00:00:00

abstract：:Virus-induced gene silencing (VIGS) is used extensively for gene function studies in plants. VIGS is inexpensive and rapid compared with silencing conducted through stable transformation, but many virus-silencing vectors, especially in grasses, induce only transient silencing phenotypes. A major reason for transient p...

journal_title：Plant physiology

authors： Ding XS,Mannas SW,Bishop BA,Rao X,Lecoultre M,Kwon S,Nelson RS

更新日期：2018-01-01 00:00:00

abstract：:Two cDNAs encoding functional carbonic anhydrase (CA) enzymes were recently isolated from a non-photosynthetic, cotyledon library of cotton (Gossypium hirsutum) seedlings with putative plastid-targeting sequences (GenBank accession nos. AF132854 and AF132855). Relative CA transcript abundance and enzyme activity incre...

journal_title：Plant physiology

authors： Hoang CV,Chapman KD

更新日期：2002-04-01 00:00:00

abstract：:Seeds with physiological dormancy usually experience primary and secondary dormancy in the nature; however, little is known about the differential regulation of primary and secondary dormancy. We combined multiple approaches to investigate cytological changes, hormonal levels, and gene expression dynamics in Cunningha...

journal_title：Plant physiology

authors： Cao D,Xu H,Zhao Y,Deng X,Liu Y,Soppe WJ,Lin J

更新日期：2016-12-01 00:00:00

abstract：:Fructose-2,6-bisphosphate (Fru-2,6-bisP) was evaluated as a potential marker for the dormancy-breaking phase or the germination phase before pericarp splitting in red rice (Oryza sativa). During 4 h of imbibition at 30[deg]C, Fru-2,6-bisP of dehulled dormant and nondormant seeds increased to 0.26 and 0.38 pmol embryo-...

journal_title：Plant physiology

authors： Footitt S,Cohn MA

更新日期：1995-04-01 00:00:00

abstract：:Three fractions (male germ unit [MGU]-rich, cytoplasmic-particulate and water-soluble proteins) were isolated from pollen of Plumbago zeylanica L. Proteins were extracted using a phenol procedure and polypeptide patterns were compared on one- and two-dimensional polyacrylamide gels. The MGU-rich fraction contains the ...

journal_title：Plant physiology

authors： Geltz NR,Russell SD

更新日期：1988-11-01 00:00:00

abstract：:In vitro fatty acid transfer to form complex lipids was observed in crude cell extracts of Anabaena variabilis using [1-(14)C]palmitoyl-acyl carrier protein, [1-(14)C]stearoyl-acyl carrier protein, and [1-(14)C]oleoyl-acyl carrier protein substrates. The data indicated that there was a rapid transfer of the fatty acid...

journal_title：Plant physiology

authors： Lem NW,Stumpf PK

更新日期：1984-07-01 00:00:00

abstract：:Chloroplast ribosomes, which originated from cyanobacteria, comprise a large subunit (50S) and a small subunit (30S) containing ribosomal RNAs (rRNAs) and various ribosomal proteins. Genes for many chloroplast ribosomal proteins, as well as proteins with auxiliary roles in ribosome biogenesis or functioning, reside in...

journal_title：Plant physiology

authors： Pulido P,Zagari N,Manavski N,Gawronski P,Matthes A,Scharff LB,Meurer J,Leister D

更新日期：2018-08-01 00:00:00

abstract：:Aspen (Populus tremuloides Michx.) leaf extracts contain a newly discovered enzyme activity that catalyzes the magnesium ion-dependent elimination of diphosphate from dimethylallyl diphosphate with rearrangement to form isoprene (2-methyl, 1-3-butadiene). This isoprene synthase activity has been partially purified. Th...

journal_title：Plant physiology

authors： Silver GM,Fall R

更新日期：1991-12-01 00:00:00

abstract：:Photosystem I (PSI) has been isolated from mesophyll chloroplasts of mature maize leaves. The isolated PSI (PSI-200) was used as starting material for preparing an antenna-depleted core (PSI-100). Both of these preparations appear to be quite analogous to PSI complexes isolated from other plant tissue sources, such as...

journal_title：Plant physiology

authors： Wynn RM,Luong C,Malkin R

更新日期：1989-09-01 00:00:00

abstract：:Centromeres are required for faithful segregation of chromosomes in cell division. It is not clear what kind of sequences act as functional centromeres and how centromere sequences are organized in Oryza punctata, a BB genome species. In this study, we found that the CentO centromeric satellites in O. punctata share h...

journal_title：Plant physiology

authors： Zhang W,Yi C,Bao W,Liu B,Cui J,Yu H,Cao X,Gu M,Liu M,Cheng Z

更新日期：2005-09-01 00:00:00

abstract：:Young seedlings of Lavatera cretica L. exhibit positive phototropism. The hypocotyl perceives unilateral illumination with blue light and curves towards the light source by unequal growth. In addition, the cotyledonary laminas perceive the vectorial component of unilateral illumination with blue light and reorient nor...

journal_title：Plant physiology

authors： Schwartz A,Koller D

更新日期：1980-07-01 00:00:00

abstract：:Exposure of six wheat (Triticum aestivum L.) and one rye (Secale cereale L.) cultivar to 40% relative humidity for 24 hours induced the same degree of freezing tolerance in seedling epicotyls as did cold conditioning for 4 weeks at 2 degrees C.Frost hardiness varietal relationships were the same in desiccation-stresse...

journal_title：Plant physiology

authors： Cloutier Y,Siminovitch D

更新日期：1982-01-01 00:00:00

abstract：:Although researchers have established that DNA methylation and active demethylation are dynamically regulated in plant cells, the molecular mechanism for the regulation of active DNA demethylation is not well understood. By using an Arabidopsis (Arabidopsis thaliana) line expressing the Promoter RESPONSIVE TO DEHYDRAT...

journal_title：Plant physiology

authors： Wang C,Dong X,Jin D,Zhao Y,Xie S,Li X,He X,Lang Z,Lai J,Zhu JK,Gong Z

更新日期：2015-03-01 00:00:00

abstract：:Rhythmic rotational movements with the midvein as the axis have been observed in the unifoliate leaves of Phaseolus angularis Wight grown under controlled environmental conditions with continuous light. The mean period of this movement for all leaves was 53.2 +/- 4.3 minutes and remained constant as the leaf matured, ...

journal_title：Plant physiology

authors： Alford DK,Tibbitts TW

更新日期：1971-01-01 00:00:00

abstract：:Phosphate (Pi) deficiency strongly limits plant growth, and plant roots foraging the soil for nutrients need to adapt to optimize Pi uptake. Ca2+ is known to signal in root development and adaptation but has to be tightly controlled, as it is highly toxic to Pi metabolism. Under Pi starvation and the resulting decreas...

journal_title：Plant physiology

authors： Matthus E,Wilkins KA,Swarbreck SM,Doddrell NH,Doccula FG,Costa A,Davies JM

更新日期：2019-04-01 00:00:00

abstract：:The cultivated tomato (Lycopersicon esculentum) has a unipinnate compound leaf. In the developing leaf primordium, major leaflet initiation is basipetal, and lobe formation and early vascular differentiation are acropetal. We show that engineered alterations in the expression of a tomato homeobox gene, LeT6, can cause...

journal_title：Plant physiology

authors： Janssen BJ,Lund L,Sinha N

更新日期：1998-07-01 00:00:00

abstract：:We examined the consistency of the native diploid Nicotiana attenuata (Na)'s herbivore-induced transcriptional changes in the two allotetraploid natives, Nicotiana clevelandii (Nc) and Nicotiana quadrivalvis (Nq), which are thought to be derived from hybridizations with an ancestral Na. An analysis of nuclear-encoded ...

journal_title：Plant physiology

authors： Qu N,Schittko U,Baldwin IT

更新日期：2004-05-01 00:00:00