Root respiration associated with nitrogenase activity (c(2)h(2)) of soybean, and a comparison of estimates.

abstract：:A double pressure probe technique was used to measure simultaneously water flows and hydraulic parameters of individual cells and of excised roots of young seedlings of maize (Zea mays L.) in osmotic experiments. By following initial flows of water at the cell and root level and by estimating the profiles of driving f...

journal_title：Plant physiology

authors： Zhu GL,Steudle E

更新日期：1991-01-01 00:00:00

abstract：:Distribution of K, Ca, Cl, S, and P in freeze-dried sections of Arabidopsis flower stalk was analyzed by energy dispersive x-ray imaging. Concentrations of these elements in different cell types were quantified by microanalysis of single-cell samples and phloem exudates. Results showed a differential pattern of distri...

journal_title：Plant physiology

authors： Koroleva OA,Davies A,Deeken R,Thorpe MR,Tomos AD,Hedrich R

更新日期：2000-10-01 00:00:00

abstract：:The gene specifying plastid transketolase (TK) of maize (Zea mays) was cloned from a cDNA library by southern blotting using a heterologous probe from sorghum (Sorghum bicolor). A recombinant fusion protein comprising thioredoxin of Escherichia coli and mature TK of maize was expressed at a high level in E. coli and c...

journal_title：Plant physiology

authors： Gerhardt S,Echt S,Busch M,Freigang J,Auerbach G,Bader G,Martin WF,Bacher A,Huber R,Fischer M

更新日期：2003-08-01 00:00:00

abstract：:A new hydroxycinnamoyl-CoA:putrescine hydroxycinnamoyltransferase (PHT) was detected in two variant lines of Nicotiana tabacum L. (TX1, TX4) accumulating markedly different levels of caffeoylputrescine. The enzyme accepted only the aliphatic diamines putrescine, cadaverine and 1,3-diaminopropane at a ratio of 100:33:8...

journal_title：Plant physiology

authors： Meurer-Grimes B,Berlin J,Strack D

更新日期：1989-02-01 00:00:00

abstract：:A technique of centrifuging pea epicotyl sections which extracts water-soluble cell wall polysaccharides with less than 1.5% cytoplasmic contamination as revealed by malate dehydrogenase activity determinations was developed. Tests for protein, hexose, pentose, and malate dehydrogenase indicate that significant damage...

journal_title：Plant physiology

authors： Terry ME,Bonner BA

更新日期：1980-08-01 00:00:00

abstract：:Two isoenzymes of lipoxygenase, a and b, have been obtained from bush beans (Phaseolus vulgaris) as electrophoretically homogeneous proteins. Both proteins have a molecular weight of 100,000, contain 1 atom of iron, and appear to be composed of a single peptide chain. However, these enzymes appear to differ in some ot...

journal_title：Plant physiology

authors： Hurt GB,Axelrod B

更新日期：1977-04-01 00:00:00

abstract：:Drought stress is one of the main environmental problems encountered by crop growers. Reduction in arable land area and reduced water availability make it paramount to identify and develop strategies to allow crops to be more resilient in water-limiting environments. The plant hormone abscisic acid (ABA) plays an impo...

journal_title：Plant physiology

authors： Brugière N,Zhang W,Xu Q,Scolaro EJ,Lu C,Kahsay RY,Kise R,Trecker L,Williams RW,Hakimi S,Niu X,Lafitte R,Habben JE

更新日期：2017-11-01 00:00:00

abstract：:Isoprenoid biosynthesis in plant plastids occurs via the 1-deoxy-d-xylulose 5-phosphate (DXP) pathway. We used tobacco rattle virus (TRV) to posttranscriptionally silence the expression of the last two enzymes of this pathway, the IspG-encoded (E)-4-hydroxy-3-methylbut-2-enyl diphosphate synthase (HDS) and the IspH-en...

journal_title：Plant physiology

authors： Page JE,Hause G,Raschke M,Gao W,Schmidt J,Zenk MH,Kutchan TM

更新日期：2004-04-01 00:00:00

abstract：:The phytochromes are one of the means via which plants obtain information about their immediate environment and the changing seasons. Phytochromes have important roles in developmental events such as the switch to flowering, the timing of which can be crucial for the reproductive success of the plant. Analysis of phyB...

journal_title：Plant physiology

authors： Halliday KJ,Whitelam GC

更新日期：2003-04-01 00:00:00

abstract：:Oscillatory tip growth in pollen tubes depends on prodigious amounts of energy. We have tested the hypothesis that oscillations in the electron transport chain lead to growth oscillations in lily (Lilium formosanum). Using three respiratory inhibitors, oligomycin, antimycin A, and cyanide, we find that pollen tube gro...

journal_title：Plant physiology

authors： Rounds CM,Hepler PK,Fuller SJ,Winship LJ

更新日期：2010-02-01 00:00:00

abstract：:Tyrosine decarboxylase (TYDC) is a common plant enzyme involved in the biosynthesis of numerous secondary metabolites, including hydroxycinnamic acid amides. Although a definite function has not yet been determined, amides have been proposed to form a physical barrier against pathogens because they are usually found a...

journal_title：Plant physiology

authors： Facchini PJ,Yu M,Penzes-Yost C

更新日期：1999-07-01 00:00:00

abstract：:A technique is presented for the isolation of vacuoles from Sedum telephium L. leaves. Leaf material is digested enzymically to produce protoplasts rapidly which are partially lysed by gentle osmotic shock and the inclusion of 5 millimolar ethyleneglycol-bis (beta-aminoethyl ether)N,N'-tetraacetic acid in the wash med...

journal_title：Plant physiology

authors： Kringstad R,Kenyon WH,Black CC

更新日期：1980-09-01 00:00:00

abstract：:Leaf elongation rate, water potential, and osmotic potential were measured in the fifth leaf of maize (Zea mays L.) plants growing in soil from which water was withheld for varying times. Elongation occurred in the basal region, which was enclosed by other leaf sheaths. When water was withheld from the soil, leaf elon...

journal_title：Plant physiology

authors： Michelena VA,Boyer JS

更新日期：1982-05-01 00:00:00

abstract：:Three unique classes of carbohydrates were isolated from the hyphal cell walls of Phytophthora megasperma f.sp. glycinea (Pmg) and compared with other substances for their activity as elicitors of the phytoalexin glyceollin in soybean tissues. Glucomannans extracted from cell walls with soybean beta-1,3-endoglucanase ...

journal_title：Plant physiology

authors： Keen NT,Yoshikawa M,Wang MC

更新日期：1983-03-01 00:00:00

abstract：:Starch, total amylolytic and phosphorylase activities were determined in lentil cotyledons during the first days of germination. Several independent criteria show that the amylolytic activity is due mainly to an amylase of the alpha type. Starch is degraded slowly in the first days; during this time, alpha- and beta-a...

journal_title：Plant physiology

authors： Tárrago JF,Nicolás G

更新日期：1976-11-01 00:00:00

abstract：:The effects of a severe water deficit on total root (L(t)) and axial (L(x)) hydraulic conductances and on the development of the hypodermis, endodermis, and xylem were studied in sorghum (Sorghum bicolor L.). Water deficit was imposed in the upper rooting zone while the lower zones were kept moist. L(t) and L(x) were ...

journal_title：Plant physiology

authors： Cruz RT,Jordan WR,Drew MC

更新日期：1992-05-01 00:00:00

abstract：:Pectin methylesterase (PME, EC 3.1.1.11) is an ubiquitous enzyme in the plant kingdom; however, its role in plant growth and development is not yet understood. Using transgenic tomato (Lycopersicon esculentum Mill.) fruits that show more than 10-fold reduction in PME activity because of expression of an antisense PME ...

journal_title：Plant physiology

authors： Tieman DM,Handa AK

更新日期：1994-10-01 00:00:00

abstract：:Small RAC/ROP-family G proteins regulate development and stress responses in plants. Transient overexpression and RNA interference experiments suggested that the barley (Hordeum vulgare) RAC/ROP protein RACB is involved in susceptibility to the powdery mildew fungus Blumeria graminis f. sp. hordei. We created transgen...

journal_title：Plant physiology

authors： Schultheiss H,Hensel G,Imani J,Broeders S,Sonnewald U,Kogel KH,Kumlehn J,Hückelhoven R

更新日期：2005-09-01 00:00:00

abstract：:Trithorax group proteins are chromatin-remodeling factors that activate target gene expression by antagonistically functioning against the Polycomb group. In Arabidopsis (Arabidopsis thaliana), Arabidopsis Trithorax protein1 (ATX1) regulates flowering time and floral organ identity. Here, we observed that suppression ...

journal_title：Plant physiology

authors： Choi SC,Lee S,Kim SR,Lee YS,Liu C,Cao X,An G

更新日期：2014-03-01 00:00:00

abstract：:The location and changes in NAD(P)H have been monitored during oscillatory growth in pollen tubes of lily (Lilium formosanum) using the endogenous fluorescence of the reduced coenzyme (excitation, 360 nm; emission, >400 nm). The strongest signal resides 20 to 40 microm behind the apex where mitochondria (stained with ...

journal_title：Plant physiology

authors： Cárdenas L,McKenna ST,Kunkel JG,Hepler PK

更新日期：2006-12-01 00:00:00

abstract：:Extracts of immature kernels of Zea mays L. catalyzed the synthesis of indol-3-yl-acetyl-myo-inositol arabinoside from indol-3-yl-acetyl-myo-inositol and UDP-[U-(14)C]xylose. The product contained radioactivity which upon hydrolysis with trifluoroacetic acid cochromatographed with arabinose and not xylose. The amount ...

journal_title：Plant physiology

authors： Corcuera LJ,Bandurski RS

更新日期：1982-12-01 00:00:00

abstract：:Red-light irradiation of etiolated wheat (Triticum aestivum L.) leaf protoplasts rapidly increases calcium-dependent phosphorylation in vivo of 70- and 60-kD peptides, and the phosphorylation is attenuated by simultaneous far-red light (K.M. Fallon, P.S. Shacklock, A.J. Trewavas [1993] Plant Physiology 101:1039-1045)....

journal_title：Plant physiology

authors： Fallon KM,Trewavas AJ

更新日期：1994-05-01 00:00:00

abstract：:Electron paramagnetic resonance has been used to quantitate reduction of ferric ion bound to hydroxamate siderophores by iron-stressed fungi (DJ Ecker et al. 1982 J Biol Chem 257:8623-8626) and by iron-stressed Chlorella vulgaris (ATCC 11468) (FCT Allnutt, WD Bonner 1984 J Plant Nutr 7: 427-435). Application of this t...

journal_title：Plant physiology

authors： Allnutt FC,Bonner WD

更新日期：1987-04-01 00:00:00

abstract：:Waxy wheat (Triticum aestivum L.) lacks the waxy protein, which is also known as granule-bound starch synthase I (GBSSI). The starch granules of waxy wheat endosperm and pollen do not contain amylose and therefore stain red-brown with iodine. However, we observed that starch from pericarp tissue of waxy wheat stained ...

journal_title：Plant physiology

authors： Nakamura T,Vrinten P,Hayakawa K,Ikeda J

更新日期：1998-10-01 00:00:00

abstract：:We report the molecular cloning and sequence of the cDNA coding for the biotin-containing subunit of the chloroplastic acetylcoenzyme A (CoA) carboxylase (ACCase) of Arabidopsis thaliana (CAC1). The 3' end of the CAC1 sequence, coding for a peptide of 94 amino acids, which includes a putative biotinylation motif, was ...

journal_title：Plant physiology

authors： Choi JK,Yu F,Wurtele ES,Nikolau BJ

更新日期：1995-10-01 00:00:00

abstract：:Glycine decarboxylase is a mitochondrial enzyme complex, which is the site of photorespiratory CO2 and NH3 release. Although the proteins that constitute the complex are located within the mitochondria, because of their intimate association with photosynthesis their expression is controlled by light. Comparisons of th...

journal_title：Plant physiology

authors： Srinivasan R,Oliver DJ

更新日期：1995-09-01 00:00:00

abstract：:The ability of the wheat germ initiation factors and ribosomes to serve as substrates for a wheat germ protein kinase (Yan and Tao 1982 J Biol Chem 257: 7037-7043) has been investigated. The wheat germ kinase catalyzes the phosphorylation of the 42,000 dalton subunit of eukaryotic initiation factor (eIF)-2 and the 107...

journal_title：Plant physiology

authors： Browning KS,Yan TF,Lauer SJ,Aquino LA,Tao M,Ravel JM

更新日期：1985-02-01 00:00:00

abstract：:Allantoin and allantoic acid are the major forms of nitrogen transported from soybean nodules to other parts of the plant. Neither the pathway or the site of ureide synthesis has been demonstrated in root nodules.Bacteroid and cytosol (plant portion) fractions were prepared and the purity of each fraction was determin...

journal_title：Plant physiology

authors： Triplett EW,Blevins DG,Randall DD

更新日期：1980-06-01 00:00:00

abstract：:The primary aerial surfaces of land plants are covered with a cuticle, a protective layer composed of the cutin polyester matrix and cuticular waxes. Previously, we discovered a unique mechanism of regulating cuticular wax biosynthesis during Arabidopsis (Arabidopsis thaliana) stem elongation that involves ECERIFERUM7...

journal_title：Plant physiology

authors： Lam P,Zhao L,Eveleigh N,Yu Y,Chen X,Kunst L

更新日期：2015-02-01 00:00:00

abstract：:Soybean seedlings were examined for the presence of mitochondrial tRNA. Tyrosyl transfer tRNAs from whole cells, from a well characterized mitochondrial preparation, and from a snake venom phosphodiesterase-treated mitochondrial preparation, were compared by reverse phase chromatography. It was concluded that none of ...

journal_title：Plant physiology

authors： Meng RL,Vanderhoef LN

更新日期：1972-08-01 00:00:00