Regulation of apoplastic NH4+ concentration in leaves of oilseed rape

abstract：:Bundle sheath strands and mesophyll cell extracts have been isolated from maize (Zea mays L.) leaves using a mechanical disruption-filtration technique. Northern blot analysis showed that phosphoenolpyruvate carboxylase (PEPCase; EC 4.1.1.31) mRNA accumulates only in mesophyll cells. The mechanisms regulating the cell...

journal_title：Plant physiology

authors： Martineau B,Taylor WC

更新日期：1986-10-01 00:00:00

abstract：:Purified potato tuber (Solanum tuberosum L. cv Bintie) mitochondria contain soluble, highly latent NAD(+)- and NADP(+)-isocitrate dehydrogenases, NAD(+)- and NADP(+)-malate dehydrogenases, as well as an NADPH-specific glutathione reductase (160, 25, 7200, 160, and 16 nanomoles NAD(P)H per minute and milligram protein,...

journal_title：Plant physiology

authors： Rasmusson AG,Møller IM

更新日期：1990-11-01 00:00:00

abstract：:The architecture of wheat (Triticum aestivum) inflorescence and its complexity is among the most important agronomic traits that influence yield. For example, wheat spikes vary considerably in the number of spikelets, which are specialized reproductive branches, and the number of florets, which are spikelet branches t...

journal_title：Plant physiology

authors： Wang Y,Yu H,Tian C,Sajjad M,Gao C,Tong Y,Wang X,Jiao Y

更新日期：2017-10-01 00:00:00

abstract：:Large-scale phenotypic screening presents challenges and opportunities not encountered in typical forward or reverse genetics projects. We describe a modular database and laboratory information management system that was implemented in support of the Chloroplast 2010 Project, an Arabidopsis (Arabidopsis thaliana) reve...

journal_title：Plant physiology

authors： Lu Y,Savage LJ,Larson MD,Wilkerson CG,Last RL

更新日期：2011-04-01 00:00:00

abstract：:LONG HYPOCOTYL5 (HY5) is a bZIP (basic leucine zipper) transcription factor that activates photomorphogenesis and root development in Arabidopsis (Arabidopsis thaliana). Previously, STF1 (soybean [Glycine max] TGACG-motif binding factor 1), a homologous legume protein with a RING-finger motif and a bZIP domain, was re...

journal_title：Plant physiology

authors： Song YH,Yoo CM,Hong AP,Kim SH,Jeong HJ,Shin SY,Kim HJ,Yun DJ,Lim CO,Bahk JD,Lee SY,Nagao RT,Key JL,Hong JC

更新日期：2008-04-01 00:00:00

abstract：:The flacca mutant in tomato (Lycopersicon esculentum Mill. cv Rheinlands Ruhm) was employed to examine the effects of a relatively constant diurnal water stress on leaf growth and water relations. As the mutant is deficient in abscisic acid (ABA) and can be phenotypically reverted to the wild type by applications of t...

journal_title：Plant physiology

authors： Bradford KJ

更新日期：1983-05-01 00:00:00

abstract：:The effect of various periods of pretreatment in CaSO(4) solutions (aging) on the absorption of Na and K by bean stem slices was investigated. Freshly sliced tissue absorbed Na over the entire range of concentrations studied (0.02-50 mm). Potassium absorption by fresh tissue was nil at concentrations below 0.5 mm but ...

journal_title：Plant physiology

authors： Rains DW

更新日期：1969-04-01 00:00:00

abstract：:The light dependent energization of the thylakoid membrane was analyzed in isolated intact spinach (Spinacia oleracea L.) chloroplasts incubated with different concentrations of inorganic phosphate (Pi). Two independent methods were used: (a) the accumulation of [(14)C]5,5-dimethyl-2,4-oxazolidinedione and [(14)C] met...

journal_title：Plant physiology

authors： Heineke D,Stitt M,Heldt HW

更新日期：1989-09-01 00:00:00

abstract：:Phytohemagglutinin, the lectin of the common bean Phaseolus vulgaris, has a high mannose and a modified (fucosylated) oligosaccharide on each polypeptide. Fractionation by high performance liquid chromatography of tryptic digests of [(3)H]fucose or [(3)H]glucosamine labeled phytohemagglutinin, followed by amino acid s...

journal_title：Plant physiology

authors： Sturm A,Chrispeels MJ

更新日期：1986-05-01 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：:Prolonged growth of cell cultures of sycamore (Acer pseudoplatanus L.) on agar medium containing myo-inositol-2-(3)H resulted in incorporation of label predominately into uronosyl and pentosyl units of cell wall polysaccharides. Procedures normally used to distinguish between pectic substance and hemicellulose yielded...

journal_title：Plant physiology

authors： Roberts RM,Loewus F

更新日期：1966-11-01 00:00:00

abstract：:Ubiquitination and deubiquitination are reversible processes that play crucial roles in regulating organ size in plants. However, information linking deubiquitination and seed size in rice (Oryza sativa) is limited. Here, we characterized a dominant large-grain mutant, large grain1-D (lg1-D), with a 30.8% increase in ...

journal_title：Plant physiology

authors： Shi C,Ren Y,Liu L,Wang F,Zhang H,Tian P,Pan T,Wang Y,Jing R,Liu T,Wu F,Lin Q,Lei C,Zhang X,Zhu S,Guo X,Wang J,Zhao Z,Wang J,Zhai H,Cheng Z,Wan J

更新日期：2019-05-01 00:00:00

abstract：:Function of the cyanide-sensitive mitochondrial electron transport system was required for germination of the Zea mays embryo. Respiration of the standard electron transport system (rather than the alternate oxidase) began immediately upon initiation of imbibition. This respiration depended upon cytochrome c oxidase a...

journal_title：Plant physiology

authors： Ehrenshaft M,Brambl R

更新日期：1990-05-01 00:00:00

abstract：:The Dof (DNA binding with one finger) transcriptional activator rice (Oryza sativa) prolamin box binding factor (RPBF), which is involved in gene regulation of rice seed storage proteins, has been isolated from rice cDNA expressed sequence tag clones containing the conserved Dof. RPBF is found as a single gene per hap...

journal_title：Plant physiology

authors： Yamamoto MP,Onodera Y,Touno SM,Takaiwa F

更新日期：2006-08-01 00:00:00

abstract：:In cyanobacteria fatty acids destined for lipid synthesis can be synthesized de novo, but also exogenous free fatty acids from the culture medium can be directly incorporated into lipids. Activation of exogenous fatty acids is likely required prior to their utilization. To identify the enzymatic activity responsible f...

journal_title：Plant physiology

authors： Kaczmarzyk D,Fulda M

更新日期：2010-03-01 00:00:00

abstract：:As regulators of gene expression in multicellular organisms, microRNAs (miRNAs) are crucial for growth and development. Although a plethora of factors involved in their biogenesis and action in Arabidopsis (Arabidopsis thaliana) has been described, these processes and their fine-tuning are not fully understood. Here, ...

journal_title：Plant physiology

authors： Lang PLM,Christie MD,Dogan ES,Schwab R,Hagmann J,van de Weyer AL,Scacchi E,Weigel D

更新日期：2018-01-01 00:00:00

abstract：:Barley (Hordeum vulgare L. Himalaya) mutants with altered grain morphology were isolated to investigate whether defects in grain development, possibly involving gibberellins (GAs) and abscisic acid, would lead to altered patterns of [alpha]-amylase gene expression. Following treatment with sodium azide, 75 mutants, ty...

journal_title：Plant physiology

authors： Green LS,Faergestad EM,Poole A,Chandler PM

更新日期：1997-05-01 00:00:00

abstract：:A direct method is described for measuring the pressure in secondary phloem sieve tubes of oak trees. One end of a 26-gauge stainless steel tube was shaped such that when it penetrated the outer bark and transected a few sieve elements, it was stopped by the xylem so that small openings in the end allowed phloem sap t...

journal_title：Plant physiology

authors： Hammel HT

更新日期：1968-07-01 00:00:00

abstract：:The petunia (Petunia [Mitchell]) chloroplast proteins, the chlorophyll a/b-binding (Cab) proteins, and the small subunit of ribulose bisphosphate carboxylase (RbcS) are encoded by nuclear genes that are expressed in a light-dependent manner. The steady-state concentrations of five cab mRNAs vary with a dramatic circad...

journal_title：Plant physiology

authors： Stayton MM,Brosio P,Dunsmuir P

更新日期：1989-03-01 00:00:00

abstract：:Movement of [(14)C]kinetin and [(14)C]gibberellic acid was examined in cotton (Gossypium hirsutum L.) cotyledonary petiole sections independent of label uptake or exit from the tissue. Sections 20 millimeters in length were taken from well watered, stressed, and poststressed plants. Transport capacity was determined u...

journal_title：Plant physiology

authors： Davenport TL,Jordan WR,Morgan PW

更新日期：1979-01-01 00:00:00

abstract：:The oat (Avena sativa L.) seed globulin was found to be synthesized in vitro as 60,000 to 64,000 dalton precursors. In vivo protein labeling yielded polypeptides of 58,000 to 62,000 daltons, suggesting cleavage of signal sequences from the precursors. Further cleavage is apparently required to separate the alpha and b...

journal_title：Plant physiology

authors： Brinegar AC,Peterson DM

更新日期：1982-12-01 00:00:00

abstract：:Plants contain several genes encoding thioredoxins (Trxs), small proteins involved in the regulation of the activity of many enzymes through dithiol-disulfide exchange. In addition to chloroplastic and cytoplasmic Trx systems, plant mitochondria contain a reduced nicotinamide adenine dinucleotide phosphate-dependent T...

journal_title：Plant physiology

authors： Martí MC,Olmos E,Calvete JJ,Díaz I,Barranco-Medina S,Whelan J,Lázaro JJ,Sevilla F,Jiménez A

更新日期：2009-06-01 00:00:00

abstract：:We have previously reported the use of a combination of computational simulations and targeted experiments to build a first generation mathematical model of peppermint (Menthaxpiperita) essential oil biosynthesis. Here, we report on the expansion of this approach to identify the key factors controlling monoterpenoid e...

journal_title：Plant physiology

authors： Rios-Estepa R,Lange I,Lee JM,Lange BM

更新日期：2010-04-01 00:00:00

abstract：:Primary leaves of 8-day-old Phaseolus vulgaris plants dipped in water at 46.5 to 47.5 C for 2 minutes were found to have decreased synthesis of lipid and beta-glucan compared to controls; UDP-glucose was used as substrate by cell-free preparations. As time elapsed, leaf growth, which was inhibited within the first 12 ...

journal_title：Plant physiology

authors： Ordin L,Itai C,Benzioni A,Musolan C,Kindinger JI

更新日期：1974-01-01 00:00:00

abstract：:The phytohormones abscisic acid (ABA) and gibberellins (GAs) are the primary signals that regulate seed dormancy and germination. In this study, we investigated the role of a double APETALA2 repeat transcription factor, CHOTTO1 (CHO1), in seed dormancy, germination, and phytohormone metabolism of Arabidopsis (Arabidop...

journal_title：Plant physiology

authors： Yano R,Kanno Y,Jikumaru Y,Nakabayashi K,Kamiya Y,Nambara E

更新日期：2009-10-01 00:00:00

abstract：:Oleuropein, a terpene-derived glycosylated secoiridoid biosynthesized exclusively by members of the Oleaceae family, is involved in a two-component defense system comprising a β-glucosidase that activates oleuropein into a toxic glutaraldehyde-like structure. Oleuropein and its deglycosylated derivatives have high pha...

journal_title：Plant physiology

authors： Koudounas K,Thomopoulou M,Michaelidis C,Zevgiti E,Papakostas G,Tserou P,Daras G,Hatzopoulos P

更新日期：2017-07-01 00:00:00

abstract：:Phototropism and hypocotyl growth inhibition are modulated by the coaction of different blue-light photoreceptors and their signaling pathways. How seedlings integrate the activities of the different blue-light photoreceptors to coordinate these hypocotyl growth responses is still unclear. We have used time-lapse imag...

journal_title：Plant physiology

authors： Whippo CW,Hangarter RP

更新日期：2003-07-01 00:00:00

abstract：:CO2 uptake rate, chlorophyll fluorescence, and 830-nm absorbance were measured in wild-type (wt) Nicotiana sylvestris (Speg. et Comes) and starchless mutant NS 458 leaves at different light intensities and CO2 concentrations. Initial slopes of the relationships between CO2 uptake and light and CO2 were similar, but th...

journal_title：Plant physiology

authors： Eichelmann H,Laisk A

更新日期：1994-10-01 00:00:00

abstract：:We recently identified a cDNA encoding a putative isovaleryl-coenzyme A (CoA) dehydrogenase in Arabidopsis (AtIVD). In animals, this homotetrameric enzyme is located in mitochondria and catalyzes the conversion of isovaleryl-CoA to 3-methylcrotonyl-CoA as an intermediate step in the leucine (Leu) catabolic pathway. Ex...

journal_title：Plant physiology

authors： Däschner K,Couée I,Binder S

更新日期：2001-06-01 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