Photosynthetic Potential and Accumulation of Assimilates in the Developing Chloroembryos of Cyamopsis tetragonoloba (L.) Taub.

abstract：:Oleoresin (pitch) is a defensive secretion composed of monoterpene olefins (turpentine) and diterpene resin acids (rosin) that is produced in grand fir (Abies grandis Lindl.) stems in response to wounding. Monoterpene and diterpene biosynthesis are coordinately induced in wounded stems as determined by monitoring the ...

journal_title：Plant physiology

authors： Funk C,Lewinsohn E,Vogel BS,Steele CL,Croteau R

更新日期：1994-11-01 00:00:00

abstract：:Bipyridinium herbicides, including paraquat and diquat, are believed to act by generating highly reactive, oxygen-centered free radicals within chloroplasts when treated plants are exposed to sunlight. This hypothesis has not yet been confirmed by direct chemical measurements of specific free radicals. We studied para...

journal_title：Plant physiology

authors： Babbs CF,Pham JA,Coolbaugh RC

更新日期：1989-08-01 00:00:00

abstract：:Seven-day-old dark-grown bean leaves were greened under continuous light. The amount of chlorophyll, the ratio of chlorophyll a to chlorophyll b, the O(2) evolving capacity and the primary photochemical activities of Photosystem I and Photosystem II were measured on the leaves after various times of greening. The prim...

journal_title：Plant physiology

authors： Baker NR,Butler WL

更新日期：1976-10-01 00:00:00

abstract：:In apple (Malus domestica), the polyphenol profile is dominated by phloridzin, but its physiological role remains largely elusive. Here, we used MdUGT88F1 (a key UDP-glucose:phloretin 2'-O-glucosyltransferase gene) transgenic apple lines and Malus spp. germplasm to gain more insight into the physiological role of phlo...

journal_title：Plant physiology

authors： Zhou K,Hu L,Li Y,Chen X,Zhang Z,Liu B,Li P,Gong X,Ma F

更新日期：2019-08-01 00:00:00

abstract：:Superoxide dismutases (SODs) are ubiquitous metalloenzymes that catalyze the dismutation of superoxide radicals. Chloroplasts have two isozymes, copper/zinc SOD (Cu/ZnSOD) and iron SOD (FeSOD), encoded by nuclear genes. Because bryophytes are considered as the earliest land plants, they are one of the most interesting...

journal_title：Plant physiology

authors： Nagae M,Nakata M,Takahashi Y

更新日期：2008-04-01 00:00:00

abstract：:Phosphorus (P) is an essential macronutrient, and P deficiency limits plant productivity. Recent work showed that P deficiency affects electron transport to photosystem I (PSI), but the underlying mechanisms are unknown. Here, we present a comprehensive biological model describing how P deficiency disrupts the photosy...

journal_title：Plant physiology

authors： Carstensen A,Herdean A,Schmidt SB,Sharma A,Spetea C,Pribil M,Husted S

更新日期：2018-05-01 00:00:00

abstract：:Cells of Anabaena PCC 7119 and of a mutant strain of Nostoc muscorum unable to fix dinitrogen, grown at pH 8 and under low CO(2) tension (air), showed a reduced capacity for photosynthesis when cultured in the absence of sodium, this inhibition being followed by symptoms of photooxidation, such as chlorosis, oxygen co...

journal_title：Plant physiology

authors： Maeso ES,Piñas FF,Gonzalez MG,Valiente EF

更新日期：1987-10-01 00:00:00

abstract：:Phosphate in the xylem exudate of tomato (Lycopersicon esculentum) plants was 70 to 98% inorganic phosphate (Pi), 2 to 30% P-choline, and less than 1% P-ethanolamine. Upon adding (32)Pi to the nutrient, Pi in xylem exudate had the same specific activity within 4 hours. P-choline and P-ethanolamine reached the same spe...

journal_title：Plant physiology

authors： Martin BA,Tolbert NE

更新日期：1983-10-01 00:00:00

abstract：:Apparent large size-classes of zein-synthesizing polysomes from developing kernels of Zea mays L. were converted to smaller polysomes after treatment with Protease K. The reduction in polysome size was not a result of ribonuclease activity, inasmuch as the enzyme did not affect the free polysomes or the size of the mR...

journal_title：Plant physiology

authors： Larkins BA,Tsai CY

更新日期：1977-10-01 00:00:00

abstract：:The physiological and molecular bases for contrasting [alpha]-amylase phenotypes were examined in germinating seeds of two barley (Hordeum vulgare L.) cultivars, Morex and Steptoe. Morex is a high-quality malting barley that develops high [alpha]-amylase activity soon after germination. Steptoe is a feed barley that d...

journal_title：Plant physiology

authors： Skadsen RW

更新日期：1993-05-01 00:00:00

abstract：:Cauliflower mosaic virus (CaMV) replicated in protoplasts and in inoculated leaves of the non-host, cotton (Gossypium hirsutum, L.). Protoplasts prepared from suspension-cultured cotton cells were infected by incubation with liposome-encapsulated CaMV virions. During a 1-week culture period the amount of CaMV nucleic ...

journal_title：Plant physiology

authors： Hussain MM,Melcher U,Whittle T,Williams A,Brannan CM,Mitchell ED

更新日期：1987-03-01 00:00:00

abstract：:The effects of freezing and desiccation of spinach leaves (Spinacia oleracea L. cv Yates) on the thylakoid membranes were assessed using antibodies specific for thylakoid membrane proteins. The peripheral part of the chloroplast coupling factor ATPase (CF1) was used as a molecular marker for chemical membrane damage b...

journal_title：Plant physiology

authors： Hincha DK,Höfner R,Schwab KB,Heber U,Schmitt JM

更新日期：1987-02-01 00:00:00

abstract：:While membrane transporters mediating ammonium uptake across the plasma membrane have been well described at the molecular level, little is known about compartmentation and cellular export of ammonium. (The term ammonium is used to denote both NH3 and NH4+ and chemical symbols are used when specificity is required.) W...

journal_title：Plant physiology

authors： Loqué D,Ludewig U,Yuan L,von Wirén N

更新日期：2005-02-01 00:00:00

abstract：:In an earlier paper we showed that in fully developed barley (Hordeum vulgare L.) root epidermal cells a decrease in cytosolic K+ was associated with an acidification of the cytosol (D.J. Walker, R. A. Leigh, A.J. Miller [1996] Proc Natl Acad Sci USA 93: 10510-10514). To show that these changes in cytosolic ion concen...

journal_title：Plant physiology

authors： Walker DJ,Black CR,Miller AJ

更新日期：1998-11-01 00:00:00

abstract：:Plants have evolved different but interconnected strategies to defend themselves against herbivorous insects and microbial pathogens. We used an Arabidopsis/Pseudomonas syringae pathosystem to investigate the impact of pathogen-induced defense responses on cabbage looper (Trichoplusia ni) larval feeding. Arabidopsis m...

journal_title：Plant physiology

authors： Cui J,Jander G,Racki LR,Kim PD,Pierce NE,Ausubel FM

更新日期：2002-06-01 00:00:00

abstract：:The intensity of "tuberization stimulus" in potato shoots (Solanum tuberosum L.) can be assessed from cuttings containing one or more leaves. Cuttings maintained in a mist chamber under long days will form tubers from underground buds if prior to taking the cutting the leaves received sufficient exposure to photoperio...

journal_title：Plant physiology

authors： Ewing EE

更新日期：1978-03-01 00:00:00

abstract：:Nitric oxide (NO) regulates multiple developmental events and stress responses in plants. A major biologically active species of NO is S-nitrosoglutathione (GSNO), which is irreversibly degraded by GSNO reductase (GSNOR). The major physiological effect of NO is protein S-nitrosylation, a redox-based posttranslational ...

journal_title：Plant physiology

authors： Hu J,Huang X,Chen L,Sun X,Lu C,Zhang L,Wang Y,Zuo J

更新日期：2015-04-01 00:00:00

abstract：:The uptake of orthophosphate ((32)P) by excised corn roots, Zea mays L. was studied using roots grown on 0.2 mm CaSO(4). Nine concentrations of KH(2)PO(4) from 1 to 256 mum were used at temperatures of 20 degrees , 30 degrees , and 40 degrees . Enzyme kinetic analysis was applied to the data obtained. Two apparent mec...

journal_title：Plant physiology

authors： Carter OG,Lathwell DJ

更新日期：1967-10-01 00:00:00

abstract：:The germination and pregermination ethylene production of Grand Rapids lettuce seeds (Lactuca sativa L.) incubated at 20 C after a red light treatment are inhibited if the seeds are first imbibed at 30 C for 36 hours. In this study, low concentrations of ethylene were found to enhance the germination of seeds pretreat...

journal_title：Plant physiology

authors： Burdett AN

更新日期：1972-12-01 00:00:00

abstract：:When water uptake by growing cells is prevented, the turgor pressure and the tensile stress in the cell wall are reduced by continued wall loosening. This process, termed in vivo stress relaxation, provides a new way to study the dynamics of wall loosening and to measure the wall yield threshold and the physiological...

journal_title：Plant physiology

authors： Cosgrove DJ

更新日期：1987-01-01 00:00:00

abstract：:Hydrogen-1 nuclear magnetic resonance spectroscopy was used to study water allocation in cell compartments of sun and shade leaves. NMR spectra of Acer platanoides were resolved into two peaks that were assigned to chloroplast and nonchloroplast water. Sun leaves contained 1.7 times more water per unit area of surface...

journal_title：Plant physiology

authors： McCain DC,Croxdale J,Markley JL

更新日期：1988-01-01 00:00:00

abstract：:Previous work has shown that tobacco (Nicotiana tabacum) plants engineered to express spinach choline monooxygenase in the chloroplast accumulate very little glycine betaine (GlyBet) unless supplied with choline (Cho). We therefore used metabolic modeling in conjunction with [(14)C]Cho labeling experiments and in vivo...

journal_title：Plant physiology

authors： McNeil SD,Rhodes D,Russell BL,Nuccio ML,Shachar-Hill Y,Hanson AD

更新日期：2000-09-01 00:00:00

abstract：:Different lengths of the promoter of grape (Vitis vinifera) VvHT1 (Hexose Transporter 1) gene, which encodes a putative hexose transporter expressed during the ripening of grape, have been transcriptionally fused to the beta-glucuronidase reporter gene. In transgenic tobacco (Nicotiana tabacum) transformed with these ...

journal_title：Plant physiology

authors： Atanassova R,Leterrier M,Gaillard C,Agasse A,Sagot E,Coutos-Thévenot P,Delrot S

更新日期：2003-01-01 00:00:00

abstract：:Using arrays of resistors and capacitors, a lumped circuit analog of plant tissue is developed. The circuit elements of the analog are identified in terms of physiological variables (hydraulic conductivities, water capacities, and cell dimensions) which can be measured in the laboratory. With the aid of a circuit simu...

journal_title：Plant physiology

authors： Molz FJ,Kerns DV,Peterson CM,Dane JH

更新日期：1979-11-01 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：: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：:Room temperature chlorophyll a fluorescence was used to determine the effects of developmental history, developmental stage, and leaf age on susceptibility of spinach to in vivo low temperature (5 degrees C) induced photoinhibition. Spinach (Spinacia oleracea cv Savoy) leaves expanded at cold hardening temperatures (5...

journal_title：Plant physiology

authors： Boese SR,Huner NP

更新日期：1992-07-01 00:00:00

abstract：:Polygalacturonase-inhibiting protein (PGIP) is a cell wall protein that inhibits fungal polygalacturonases (PGs) and retards the invasion of plant tissues by phytopathogenic fungi. Here, we report the interaction of two PGIP isoforms from Phaseolus vulgaris (PvPGIP1 and PvPGIP2) with both polygalacturonic acid and cel...

journal_title：Plant physiology

authors： Spadoni S,Zabotina O,Di Matteo A,Mikkelsen JD,Cervone F,De Lorenzo G,Mattei B,Bellincampi D

更新日期：2006-06-01 00:00:00

abstract：:Reducing the level of endogenous ethylene in detached Shamouti oranges (Citrus sinensis L. Osbeck) by means of subatmospheric pressure did not alter the rate of chlorophyll destruction and color changes during the first 8 days after harvest in the presence or absence of exogenous ethylene. Reducing the activity of eth...

journal_title：Plant physiology

authors： Apelbaum A,Goldschmidt EE,Ben-Yehoshua S

更新日期：1976-05-01 00:00:00

abstract：:Plants are able to respond to herbivore damage with de novo biosynthesis of an herbivore-characteristic blend of volatiles. The signal transduction initiating volatile biosynthesis may involve the activation of the octadecanoid pathway, as exemplified by the transient increase of endogenous jasmonic acid (JA) in leave...

journal_title：Plant physiology

authors： Koch T,Krumm T,Jung V,Engelberth J,Boland W

更新日期：1999-09-01 00:00:00