Distinct functional properties of isoamylase-type starch debranching enzymes in monocot and dicot leaves.

abstract：:We report n-6 monounsaturated primary alcohols (C26:1, C28:1, and C30:1 homologs) in the cuticular waxes of Arabidopsis (Arabidopsis thaliana) inflorescence stem, a class of wax not previously reported in Arabidopsis. The Arabidopsis cer17 mutant was completely deficient in these monounsaturated alcohols, and CER17 wa...

journal_title：Plant physiology

authors： Yang X,Zhao H,Kosma DK,Tomasi P,Dyer JM,Li R,Liu X,Wang Z,Parsons EP,Jenks MA,Lü S

更新日期：2017-02-01 00:00:00

abstract：:Rubisco catalyzes the fixation of CO2 into organic compounds that are used for plant growth and the production of agricultural products, and specific sugar-phosphate derivatives bind tightly to the active sites of Rubisco, locking the enzyme in a catalytically inactive conformation. 2-carboxy-d-arabinitol-1-phosphate ...

journal_title：Plant physiology

authors： Lobo AKM,Orr DJ,Gutierrez MO,Andralojc PJ,Sparks C,Parry MAJ,Carmo-Silva E

更新日期：2019-10-01 00:00:00

abstract：:Elongation of intact young leaves of maize was found to be dynamically dependent on soil water supply. With adequate water, elongation was remarkably constant but slowed when the water potential of the soil in pots dropped from -0.1 to -0.2 bar and stopped when it dropped to -2.5 bars. The corresponding range of leaf ...

journal_title：Plant physiology

authors： Acevedo E,Hsiao TC,Henderson DW

更新日期：1971-11-01 00:00:00

abstract：:The fossil record and models of atmospheric concentrations of O2 and CO2 suggest that past shifts in plant ecological dominance often coincided with dramatic changes in Earth's atmospheric composition. This study tested the effects of past changes in atmospheric composition on the photosynthetic physiology of a limite...

journal_title：Plant physiology

authors： Yiotis C,McElwain JC

更新日期：2019-11-01 00:00:00

abstract：:Combined gas chromatography-mass spectrometry has been used to identify indole-3-methanol in a purified buffer extract from etiolated seedlings of Pinus sylvestris L. Quantitative estimates obtained by high performance liquid chromatography with fluorescence detection, corrected for losses occurring during purificatio...

journal_title：Plant physiology

authors： Sundberg B,Sandberg G,Jensen E

更新日期：1985-04-01 00:00:00

abstract：:The cytosolic pools of glucose-1-phosphate (Glc-1-P) and glucose-6-phosphate are essential intermediates in several biosynthetic paths, including the formation of sucrose and cell wall constituents, and they are also linked to the cytosolic starch-related heteroglycans. In this work, structural features and biochemica...

journal_title：Plant physiology

authors： Fettke J,Nunes-Nesi A,Alpers J,Szkop M,Fernie AR,Steup M

更新日期：2008-11-01 00:00:00

abstract：:With the aid of an extracellular vibrating electrode, natural electric fields were detected and measured in the medium near growing roots and root hairs of barley seedlings. An exploration of these fields indicates that both the root as a whole, as well as individual root hairs, drive large steady currents through the...

journal_title：Plant physiology

authors： Weisenseel MH,Dorn A,Jaffe LF

更新日期：1979-09-01 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：:Major storage reserves of Arabidopsis (Arabidopsis thaliana) seeds are triacylglycerols (seed oils) and proteins. Seed oil content is severely reduced for the regulatory mutant wrinkled1 (wri1-1; At3g54320) and for a double mutant in two isoforms of plastidic pyruvate kinase (pkpbeta(1)pkpalpha; At5g52920 and At3g2296...

journal_title：Plant physiology

authors： Lonien J,Schwender J

更新日期：2009-11-01 00:00:00

abstract：:A toxic effect of alpha,alpha-trehalose in an angiospermic plant, Cuscuta reflexa (dodder), is described. This disaccharide and its analogs, 2-aminotrehalose and 4-aminotrehalose, induced a rapid blackening of the terminal region of the vine which is involved in elongation growth. From the results of in vitro growth o...

journal_title：Plant physiology

authors： Veluthambi K,Mahadevan S,Maheshwari R

更新日期：1981-12-01 00:00:00

abstract：:Dormancy is a complex evolutionary trait that temporally prevents seed germination, thus allowing seedling growth at a favorable season. High-throughput analyses of transcriptomes have led to significant progress in understanding the molecular regulation of this process, but the role of posttranscriptional mechanisms ...

journal_title：Plant physiology

authors： Basbouss-Serhal I,Soubigou-Taconnat L,Bailly C,Leymarie J

更新日期：2015-07-01 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：:Magnesium (Mg) chelatase is a heterotrimeric enzyme complex that catalyzes a key regulatory and enzymatic reaction in chlorophyll biosynthesis, the insertion of Mg(2+) into protoporphyrin IX. Studies of the enzyme complex reconstituted in vitro have shown that all three of its subunits, CHL I, CHL D, and CHL H, are re...

journal_title：Plant physiology

authors： Rissler HM,Collakova E,DellaPenna D,Whelan J,Pogson BJ

更新日期：2002-02-01 00:00:00

abstract：:Cysthathionine [gamma]-synthase (CS), an enzyme involved in methionine biosynthesis, was purified from an acetone powder prepared from wheat (Triticum aestivum L.). After several chromatographic steps and radiolabeling of the partially purified enzyme with sodium cyanoboro[3H]hydride, a single polypeptide with a molec...

journal_title：Plant physiology

authors： Kreft BD,Townsend A,Pohlenz HD,Laber B

更新日期：1994-04-01 00:00:00

abstract：:Amylase was found in high activity (193 international units per milligram protein) in the tap root of alfalfa (Medicago sativa L. cv. Sonora). The activity was separated by gel filtration chromatography into two fractions with molecular weights of 65,700 (heavy amylase) and 41,700 (light amylase). Activity staining of...

journal_title：Plant physiology

authors： Doehlert DC,Duke SH,Anderson L

更新日期：1982-05-01 00:00:00

abstract：:Fluorescence emission spectral peaks at 685, 695 and 730 nanometers (F685, F695, and F730) were recorded 77 K from diluted leaf tissue and epidermal powders prepared from Saxifraga cernua. The time course for state 1 to state 2 transitions was monitored as changes in the ratios of the three emission peaks. During illu...

journal_title：Plant physiology

authors： Mawson BT,Cummins WR

更新日期：1986-12-01 00:00:00

abstract：:Since NO(3) (-) availability in the rooting medium seriously limits symbiotic N(2) fixation by soybean (Glycine max [L.] Merr.), studies were initiated to select nodulation mutants which were more tolerant to NO(3) (-) and were adapted to the Midwest area of the United States. Three independent mutants were selected i...

journal_title：Plant physiology

authors： Gremaud MF,Harper JE

更新日期：1989-01-01 00:00:00

abstract：:We initially compared lipid peroxidation profiles in tobacco (Nicotiana tabacum) leaves during different cell death events. An upstream oxylipin assay was used to discriminate reactive oxygen species (ROS)-mediated lipid peroxidation from 9- and 13-lipoxygenase (LOX)-dependent lipid peroxidation. Free radical-mediated...

journal_title：Plant physiology

authors： Montillet JL,Chamnongpol S,Rustérucci C,Dat J,van de Cotte B,Agnel JP,Battesti C,Inzé D,Van Breusegem F,Triantaphylidès C

更新日期：2005-07-01 00:00:00

abstract：:Plant mitochondria contain non-phosphorylating NAD(P)H dehydrogenases (DHs) that are not found in animal mitochondria. The physiological function, substrate specificity, and location of enzymes within this family have yet to be conclusively determined. We have linked genome sequence information to protein and biochemi...

journal_title：Plant physiology

authors： Moore CS,Cook-Johnson RJ,Rudhe C,Whelan J,Day DA,Wiskich JT,Soole KL

更新日期：2003-12-01 00:00:00

abstract：:Plants coordinate the expression of photosynthesis-related genes in response to growth and environmental changes. In species that conduct two-cell C4 photosynthesis, expression of photosynthesis genes is partitioned such that leaf mesophyll and bundle sheath cells accumulate different components of the photosynthetic ...

journal_title：Plant physiology

authors： Hendron RW,Kelly S

更新日期：2020-03-01 00:00:00

abstract：:The polyunsaturated fatty acid content is one of the major factors influencing the quality of vegetable oils. Edible oils rich in monounsaturated fatty acid provide improved oil stability, flavor, and nutrition for human and animal consumption. In plants, the microsomal omega-6 desaturase-catalyzed pathway is the prim...

journal_title：Plant physiology

authors： Heppard EP,Kinney AJ,Stecca KL,Miao GH

更新日期：1996-01-01 00:00:00

abstract：:The existence of different auxin sensitivities in epidermal and subepidermal tissues (KV Thimann, CL Schneider 1938 Plant Physiol 25: 627-641) suggests a refinement to the Cholodny-Went theory which overcomes some of the difficulties associated with it. A model is presented to account for the inverse tropic responses ...

journal_title：Plant physiology

authors： Macdonald IR,Hart JW

更新日期：1987-07-01 00:00:00

abstract：:Five major fatty acids, palmitic (16:0), stearic (18:0), oleic (18:1), linoleic (18:2), and linolenic (18:3), were identified in polar lipid extracts from pulvini of Samanea saman and Phaseolus coccineus. In P. coccineus their distribution varied quantitatively in the laminar pulvinus, petiolar pulvinus, petiole, stem...

journal_title：Plant physiology

authors： Gardner GF,Stowe BB

更新日期：1979-09-01 00:00:00

abstract：:The expression patterns of five genes (PsGA20ox1, PsGA20ox2, PsGA3ox1, PsGA2ox1, and PsGA2ox2) encoding five regulatory gibberellin (GA) biosynthesis enzymes (two GA 20-oxidases, a GA 3beta-hydroxylase, and two GA 2beta-hydroxylases) were examined to gain insight into how these genes coordinate GA biosynthesis during ...

journal_title：Plant physiology

authors： Ayele BT,Ozga JA,Kurepin LV,Reinecke DM

更新日期：2006-11-01 00:00:00

abstract：:Root size and architecture are important crop plant traits, as they determine access to water and soil nutrients. The plant hormone cytokinin is a negative regulator of root growth and branching. Here, we generated transgenic barley (Hordeum vulgare) plants with an enlarged root system by enhancing cytokinin degradati...

journal_title：Plant physiology

authors： Ramireddy E,Hosseini SA,Eggert K,Gillandt S,Gnad H,von Wirén N,Schmülling T

更新日期：2018-07-01 00:00:00

abstract：:The mechanism of sucrose transport into vacuoles isolated from leaf tissue has been studied only in barley (Hordeum vulgare) mesophyll cells. In this tissue, sucrose transport was reported to be a facilitated diffusion. We have observed a facilitated diffusion of sucrose into vacuoles isolated from this tissue. Howeve...

journal_title：Plant physiology

authors： De Leon JL,Daie J,Wyse R

更新日期：1988-10-01 00:00:00

abstract：:Histone proteins play a central role in chromatin packaging, and modification of histones is associated with chromatin accessibility. SET domain [Su(var)3-9, Enhancer-of-zeste, Trithorax] proteins are one class of proteins that have been implicated in regulating gene expression through histone methylation. The relatio...

journal_title：Plant physiology

authors： Springer NM,Napoli CA,Selinger DA,Pandey R,Cone KC,Chandler VL,Kaeppler HF,Kaeppler SM

更新日期：2003-06-01 00:00:00

abstract：:The major nucleoside triphosphatase (NTPase) activities in mammalian and pea (Pisum sativum L.) nuclei are associated with enzymes that are very similar both biochemically and immunochemically. The major NTPase from rat liver nuclei appears to be a 46-kD enzyme that represents the N-terminal portion of lamins A and C,...

journal_title：Plant physiology

authors： Tong CG,Dauwalder M,Clawson GA,Hatem CL,Roux SJ

更新日期：1993-03-01 00:00:00

abstract：:Hybrids between the C(4)-like species, Flaveria brownii, A. M. Powell and the C(3)-C(4) intermediate species Flaveria linearis Lag., Flaveria floridana Johnston, and Flaveria oppositifolia (DC.) Rydb. exhibited bivalent chromosome pairing during meiosis and stainability of pollen was high, ranging from 51 to 95%. An F...

journal_title：Plant physiology

authors： Huber WE,Brown RH,Bouton JH,Sternberg LO

更新日期：1989-03-01 00:00:00

abstract：:Arcelin, a seed protein originally discovered in wild bean accessions, was purified, characterized, and compared to phaseolin, the major seed protein of common bean, and to phytohemagglutinin (PHA), the major bean seed lectin. Arcelin and PHA has several characteristics in common. Both were glycoproteins having simila...

journal_title：Plant physiology

authors： Osborn TC,Burow M,Bliss FA

更新日期：1988-02-01 00:00:00