Functional and phylogenetic analyses of a conserved regulatory program in the phloem of minor veins.

abstract：:Acetophenones are phenolic compounds involved in the resistance of white spruce (Picea glauca) against spruce budworm (Choristoneura fumiferiana), a major forest pest in North America. The acetophenones pungenol and piceol commonly accumulate in spruce foliage in the form of the corresponding glycosides, pungenin and ...

journal_title：Plant physiology

authors： Mageroy MH,Jancsik S,Man Saint Yuen M,Fischer M,Withers SG,Paetz C,Schneider B,Mackay J,Bohlmann J

更新日期：2017-10-01 00:00:00

abstract：:We previously cloned and sequenced a cDNA encoding soybean ferric leghemoglobin reductase (FLbR), an enzyme postulated to play an important role in maintaining leghemoglobin in a functional ferrous state in nitrogen-fixing root nodules. This cDNA was sub-cloned into an expression plasmid, pTrcHis C, and overexpressed ...

journal_title：Plant physiology

authors： Ji L,Becana M,Sarath G,Shearman L,Klucas RV

更新日期：1994-09-01 00:00:00

abstract：:Lettuce (Lactuca sativa) seeds var. Grand Rapids could be maintained many weeks in the dark without germination. Following illumination with white light, a gradual increase in polyribosome population up to the time of germination was demonstrated by sucrose gradient centrifugation. Polysomes could not be detected in i...

journal_title：Plant physiology

authors： Mitchell RC,Villiers TA

更新日期：1972-12-01 00:00:00

abstract：:Cyanobacteria have efficient carbon concentration mechanisms and suppress photorespiration in response to inorganic carbon (Ci) limitation. We studied intracellular Ci limitation in the slow-growing CO2/HCO3 (-)-uptake mutant ΔndhD3 (for NADH dehydrogenase subunit D3)/ndhD4 (for NADH dehydrogenase subunit D4)/cmpA (fo...

journal_title：Plant physiology

authors： Orf I,Klähn S,Schwarz D,Frank M,Hess WR,Hagemann M,Kopka J

更新日期：2015-11-01 00:00:00

abstract：:Growth of the aerial part of the plant is dependent upon the maintenance of the shoot apical meristem (SAM). A balance between the self-renewing stem cells in the central zone (CZ) and organogenesis in the peripheral zone (PZ) is essential for the integrity, function, and maintenance of the SAM. Understanding how the ...

journal_title：Plant physiology

authors： Ung N,Lal S,Smith HM

更新日期：2011-06-01 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：: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：: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：:Ribulose 1,5-diphosphate carboxylase (RUDPcase) from autotrophically grown Euglena gracilis was purified to homogeneity as measured by analytical ultracentrifugation, polyacrylamide gel electrophoresis, and immunoprecipitation reactions. The enzyme represented about 9% of total protein and 24% of soluble protein in th...

journal_title：Plant physiology

authors： Rabinowitz H,Reisfeld A,Sagher D,Edelman M

更新日期：1975-09-01 00:00:00

abstract：:The cyanobacterium Agmenellum quadruplicatum PR-6 (Synechococcus sp PCC 7002) was grown turbidostatically in white light at three levels of irradiance: 20, 200, and 1260 microeinsteins per square meter per second. Phycobilisomes were isolated from each culture and analyzed by absorbance, gel electrophoresis, and elect...

journal_title：Plant physiology

authors： de Lorimier RM,Smith RL,Stevens SE

更新日期：1992-03-01 00:00:00

abstract：:Ultraviolet-B (UV-B) photons can cause substantial cellular damage in biomolecules, as is well established for DNA. Because RNA has the same absorption spectrum for UV as DNA, we have investigated damage to this cellular constituent. In maize (Zea mays) leaves, UV-B radiation damages ribosomes by crosslinking cytosoli...

journal_title：Plant physiology

authors： Casati P,Walbot V

更新日期：2004-10-01 00:00:00

abstract：:Phosphoenolpyruvate carboxylase purified from leaves of maize (Zea mays, L.) is sensitive to the presence of urea. Exposure to 2.5 m urea for 30 min completely inactivates the enzyme, whereas for a concentration of 1.5 m urea, about 1 h is required. Malate appears to have no effect on inactivation by urea of phosphoen...

journal_title：Plant physiology

authors： Wedding RT,Dole P,Chardot TP,Wu MX

更新日期：1992-11-01 00:00:00

abstract：:Amyloplasts of starchy tissues such as those of maize (Zea mays L.) function in the synthesis and accumulation of starch during kernel development. ADP-glucose pyrophosphorylase (AGPase) is known to be located in chloroplasts, and for many years it was generally accepted that AGPase was also localized in amyloplasts o...

journal_title：Plant physiology

authors： Shannon JC,Pien FM,Cao H,Liu KC

更新日期：1998-08-01 00:00:00

abstract：:With rising food demands, crop production on salinized lands is increasingly necessary. Sunflower (Helianthus annuus), a moderately salt-tolerant crop, exhibits a tradeoff where more vigorous, high-performing genotypes have a greater proportional decline in biomass under salinity stress. Prior research has found devia...

journal_title：Plant physiology

authors： Temme AA,Kerr KL,Masalia RR,Burke JM,Donovan LA

更新日期：2020-10-01 00:00:00

abstract：:The nature of the association between nitrate reductase (NR) and membranes was examined. Nitrate reductase activity (NRA) associated with the microsomal fraction of barley (Hordeum vulgare L.) roots amounted to 0.6 to 0.8% of soluble NRA following sonication in the presence of 250 mM KI and repeated osmotic shock. T...

journal_title：Plant physiology

authors： Meyerhoff PA,Fox TC,Travis RL,Huffaker RC

更新日期：1994-01-01 00:00:00

abstract：:We have identified two novel periplasmic/cell wall polypeptides that specifically accumulate during sulfur limitation of Chlamydomonas reinhardtii. These polypeptides, present at high levels in the extracellular polypeptide fraction from a sulfur-deprived, cell wall-minus C. reinhardtii strain, have apparent molecular...

journal_title：Plant physiology

authors： Takahashi H,Braby CE,Grossman AR

更新日期：2001-10-01 00:00:00

abstract：:The rhythmic movement of excised Samanea saman pulvini incubated in H(2)O or 50 mm sucrose was monitored during extended periods of white light (cool white fluorescent, 2,000 ft-c), darkness, or alternating white light (16 hr) and darkness (8 hr). In continuous white light, the rhythm damps at an intermediate angle af...

journal_title：Plant physiology

authors： Simon E,Satter RL,Galston AW

更新日期：1976-09-01 00:00:00

abstract：:Cryptogein (CRY), a protein secreted by Phytophthora cryptogea, causes necrosis on tobacco (Nicotiana tabacum) plants at the site of application (the stem or the roots) and also on distant leaves. Autoradiography of plantlets after root absorption of radioiodinated CRY demonstrated a rapid migration of the label to th...

journal_title：Plant physiology

authors： Devergne JC,Bonnet P,Panabières F,Blein JP,Ricci P

更新日期：1992-07-01 00:00:00

abstract：:The eukaryotic genome is duplicated exactly once per cell division cycle. A strategy that limits every replication origin to a single initiation event is tightly regulated by a multiprotein complex, which involves at least 20 protein factors. A key player in this regulation is the evolutionary conserved hexameric MCM2...

journal_title：Plant physiology

authors： Dresselhaus T,Srilunchang KO,Leljak-Levanic D,Schreiber DN,Garg P

更新日期：2006-02-01 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：:A method for the preparation of developmentally staged microspores and young pollen from maize (Zea mays) has been devised. The preparations are of sufficient purity and quantity for biochemical analysis, including the analysis of steady-state protein and RNA populations associated with each stage. A major transition ...

journal_title：Plant physiology

authors： Bedinger PA,Edgerton MD

更新日期：1990-02-01 00:00:00

abstract：:The activity of acifluorfen-methyl (AFM); methyl 5-(2-chloro-4-[trifluoromethyl] phenoxy)-2-nitrobenzoate in excised cucumber cotyledons (Cucumis sativus L.) was examined. AFM induced membrane disruption, was significantly greater when etiolated cotyledons were illuminated 16 hours at 150 microeinsteins per square met...

journal_title：Plant physiology

authors： Halling BP,Peters GR

更新日期：1987-08-01 00:00:00

abstract：:Hydroxyproline-rich glycoproteins (HRGPs) are a superfamily of plant cell wall proteins that function in diverse aspects of plant growth and development. This superfamily consists of three members: hyperglycosylated arabinogalactan proteins (AGPs), moderately glycosylated extensins (EXTs), and lightly glycosylated pro...

journal_title：Plant physiology

authors： Showalter AM,Keppler B,Lichtenberg J,Gu D,Welch LR

更新日期：2010-06-01 00:00:00

abstract：:L-myo-inositol 1-phosphate synthase (EC 5.5.1.4) from cyanobacterial (Spirulina platensis), algal (Euglena gracilis), and higher plant (Oryza sativa, Vigna radiata) sources was purified to electrophoretic homogeneity, biochemically characterized, and compared. Both chloroplastic and cytosolic forms of the enzyme were ...

journal_title：Plant physiology

authors： RayChaudhuri A,Hait NC,Dasgupta S,Bhaduri TJ,Deb R,Majumder AL

更新日期：1997-10-01 00:00:00

abstract：:The ability of 21 C3 and C4 monocot and dicot species to rapidly export newly fixed C in the light at both ambient and enriched CO2 levels was compared. Photosynthesis and concurrent export rates were estimated during isotopic equilibrium of the transport sugars using a steady-state 14CO2-labeling procedure. At ambien...

journal_title：Plant physiology

authors： Grodzinski B,Jiao J,Leonardos ED

更新日期：1998-05-01 00:00:00

abstract：:Phenylpropanoid biosynthesis in plants engenders myriad phenolics with diverse biological functions. Phenylalanine ammonia-lyase (PAL) is the first committed enzyme in the pathway, directing primary metabolic flux into a phenylpropanoid branch. Previously, we demonstrated that the Arabidopsis (Arabidopsis thaliana) Ke...

journal_title：Plant physiology

authors： Zhang X,Gou M,Guo C,Yang H,Liu CJ

更新日期：2015-02-01 00:00:00

abstract：:Chloroplast division is driven by a macromolecular complex containing components that are positioned on the cytosolic surface of the outer envelope, the stromal surface of the inner envelope, and in the intermembrane space. The only constituents of the division apparatus identified thus far are the tubulin-like protei...

journal_title：Plant physiology

authors： McAndrew RS,Froehlich JE,Vitha S,Stokes KD,Osteryoung KW

更新日期：2001-12-01 00:00:00

abstract：:The accumulation and reduction of nitrate in the presence of the nitrogen metabolites asparagine (Asn) and glutamine (Gln) and the carbon metabolite sucrose (Suc) were examined in maize (Zea mays L.) seedlings in an attempt to separate their effects on the nitrate uptake system and the nitrate reduction system. After ...

journal_title：Plant physiology

authors： Sivasankar S,Rothstein S,Oaks A

更新日期：1997-06-01 00:00:00

abstract：:Reciprocal grafts, and applications of gibberellin (GA) and indoleacetic acid (IAA) were used to localize the site of control for stem elongation in cucumber (Cucumis sativus L.). Dwarf and tall plants were reciprocally grafted to determine influence of stems and roots on stem elongation. At 21 days there were no sign...

journal_title：Plant physiology

authors： Sandhu MS,Lockard RG,Kasperbauer MJ

更新日期：1974-06-01 00:00:00

abstract：:The possibility that photosynthetic competence is gratuitous for light-induced chloroplast development in Euglena gracilis var. bacillaris was examined by incubating dark-grown resting cells in the light with DCMU, an inhibitor of photosynthesis. Under these conditions photosynthetic carbon dioxide fixation was inhibi...

journal_title：Plant physiology

authors： Schiff JA,Zeldin MH,Rubman J

更新日期：1967-12-01 00:00:00