Effects of CO(2) and O(2) on Photosynthesis and Growth of Autotrophic Tobacco Callus.

abstract：:Seed production generally requires the mating of opposite sex gametes. Apomixis, an asexual mode of reproduction, avoids both meiotic reduction and egg fertilization. The essential feature of apomixis is that an embryo is formed autonomously by parthenogenesis from an unreduced egg of an embryo sac generated through a...

journal_title：Plant physiology

authors： Albertini E,Marconi G,Reale L,Barcaccia G,Porceddu A,Ferranti F,Falcinelli M

更新日期：2005-08-01 00:00:00

abstract：:The red light requirement for positive gravitropism in roots of corn (Zea mays cv "Merit") provides an entry for examining the participation of calcium in gravitropism. Applications of calcium chelators inhibit the light response. Calcium channel blockers (verapamil, lanthanum) can also inhibit the light response, a...

journal_title：Plant physiology

authors： Perdue DO,LaFavre AK,Leopold AC

更新日期：1988-01-01 00:00:00

abstract：:A circadian rhythm of O(2) evolution has been found in Euglena gracilis, Klebs strain Z. The rhythm persists for at least 5 days in constant dim light and temperature, but damps out in constant bright light. The phase of this rhythm can be shifted by a pulse of bright light and the period length is not changed over a ...

journal_title：Plant physiology

authors： Lonergan TA,Sargent ML

更新日期：1978-02-01 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：:The control of night-break timing was studied in dark-grown seedlings of Pharbitis nil (Choisy cv. Violet) following a single continuous or skeleton photoperiod. There was a rhythmic response to a red (R) interruption of an inductive dark period, and the phasing of the rhythm was influenced by the preceding light trea...

journal_title：Plant physiology

authors： Lumsden P,Thomas B,Vince-Prue D

更新日期：1982-07-01 00:00:00

abstract：:Plastocyanin and chloroplast coupling factor 1 (CF(1)) are released from spinach (Spinacia oleracea L.) thylakoids during a slow freezethaw cycle. CF(1) addition increases the proton uptake of thylakoids previously frozen in sucrose concentrations of 15 mm to 100 mm. Addition of CF(1) and plastocyanin restores the pro...

journal_title：Plant physiology

authors： Garber MP,Steponkus PL

更新日期：1976-05-01 00:00:00

abstract：:Extracellular calmodulin (ExtCaM) exerts multiple functions in animals and plants, but the mode of ExtCaM action is not well understood. In this paper, we provide evidence that ExtCaM stimulates a cascade of intracellular signaling events to regulate stomatal movement. Analysis of the changes of cytosolic free Ca2+ ([...

journal_title：Plant physiology

authors： Chen YL,Huang R,Xiao YM,Lü P,Chen J,Wang XC

更新日期：2004-12-01 00:00:00

abstract：:To acquire iron, many plant species reduce soil Fe(III) to Fe(II) by Fe(III)-chelate reductases embedded in the plasma membrane of root epidermal cells. The reduced product is then taken up by Fe(II) transporter proteins. These activities are induced under Fe deficiency. We describe here the FRO1 gene from pea (Pisum ...

journal_title：Plant physiology

authors： Waters BM,Blevins DG,Eide DJ

更新日期：2002-05-01 00:00:00

abstract：:A novel mutant of Arabidopsis thaliana, arc6 (accumulation and replication of chloroplasts), has been isolated from a transfer DNA-mutagenized population of Arabidopsis seedlings. arc6 has the most extreme arc mutant phenotype we have yet described, with only one to three chloroplasts per leaf mesophyll cell compared ...

journal_title：Plant physiology

authors： Pyke KA,Rutherford SM,Robertson EJ,Leech RM

更新日期：1994-11-01 00:00:00

abstract：:A selected strain of wild oat (Avena fatua L.) seed has been shown to lose dormancy rapidly during moist soil incubation at 25 C, whereas seed kept similarly at 5 C maintained a high level of dormancy.The activities of cytosolic dehydrogenase enzymes of the pentose phosphate pathway were assayed throughout a period of...

journal_title：Plant physiology

authors： Adkins SW,Ross JD

更新日期：1981-07-01 00:00:00

abstract：:Cyclic nucleotide-gated channels (CNGCs) have been implicated in diverse aspects of plant growth and development, including responses to biotic and abiotic stress, as well as pollen tube growth and fertility. Here, genetic evidence identifies CNGC16 in Arabidopsis (Arabidopsis thaliana) as critical for pollen fertilit...

journal_title：Plant physiology

authors： Tunc-Ozdemir M,Tang C,Ishka MR,Brown E,Groves NR,Myers CT,Rato C,Poulsen LR,McDowell S,Miller G,Mittler R,Harper JF

更新日期：2013-02-01 00:00:00

abstract：:Mechanical wounding not only damages plant tissues, but also provides pathways for pathogen invasion. To understand plant responses to wounding at a genomic level, we have surveyed the transcriptional response of 8,200 genes in Arabidopsis plants. Approximately 8% of these genes were altered by wounding at steady-stat...

journal_title：Plant physiology

authors： Cheong YH,Chang HS,Gupta R,Wang X,Zhu T,Luan S

更新日期：2002-06-01 00:00:00

abstract：:The effect of temperature on Hill activity has been compared in chilling-sensitive and chilling-resistant plants. The Arrhenius activation energy (Ea) for the photoreduction of 2,6-dichlorophenolindophenol by chloroplasts isolated from two chilling-sensitive plants, mung bean (Vigna radiata L. var. Mungo) and maize (Z...

journal_title：Plant physiology

authors： Nolan WG,Smillie RM

更新日期：1977-06-01 00:00:00

abstract：:A ureidoglycolate-degrading activity was analyzed in different organs of chickpea (Cicer arietinum). Activity was detected in all the tissues analyzed, but highest levels of specific activity were found in pods, from which it has been purified and characterized. This is the first ureidoglycolate-degrading activity tha...

journal_title：Plant physiology

authors： Muñoz A,Piedras P,Aguilar M,Pineda M

更新日期：2001-02-01 00:00:00

abstract：:Phosphate (Pi) deficiency strongly limits plant growth, and plant roots foraging the soil for nutrients need to adapt to optimize Pi uptake. Ca2+ is known to signal in root development and adaptation but has to be tightly controlled, as it is highly toxic to Pi metabolism. Under Pi starvation and the resulting decreas...

journal_title：Plant physiology

authors： Matthus E,Wilkins KA,Swarbreck SM,Doddrell NH,Doccula FG,Costa A,Davies JM

更新日期：2019-04-01 00:00:00

abstract：:When leaf blades of fully expanded second leaves of barley (cv. Prior) were excised and incubated with the cut end in a 20 milligram per liter solution of abscisic acid, they accumulated proline at the rate of about 1 micromole per hour per gram fresh weight after a 3- to 4-hour lag. This accumulation occurred reprodu...

journal_title：Plant physiology

authors： Stewart CR

更新日期：1980-08-01 00:00:00

abstract：:The Mg-nucleoside triphosphatase activity associated with the inner envelope membrane of the pea chloroplast is comprised of at least two components, a major activity that is sensitive to vanadate and sodium fluoride and a minor insensitive activity. The vanadate/fluoride sensitive activity has been partially purified...

journal_title：Plant physiology

authors： McCarty DR,Selman BR

更新日期：1986-04-01 00:00:00

abstract：:The net initial passive flux (J(Ni)) in reconstituted plasma membrane (PM) vesicles from maize (Zea mays) root cells was measured as recently described (P. Pouliquin, J.-P. Grouzis, R. Gibrat ¿1999 Biophys J 76: 360-373). J(Ni) in control liposomes responded to membrane potential or to NO(3)(-) as expected from the Go...

journal_title：Plant physiology

authors： Pouliquin P,Boyer JC,Grouzis JP,Gibrat R

更新日期：2000-01-01 00:00:00

abstract：:Ethylene production and respiration by Granny Smith apples were inhibited by treatment with 20% CO(2) for 2 hours. A similar effect was observed in tissue slices when treated at either 0 or 25 degrees C.The inhibition continued even after an extended aeration period. There is also an inhibition of ethylene emission in...

journal_title：Plant physiology

authors： Chaves AR,Tomás JO

更新日期：1984-09-01 00:00:00

abstract：:The cytokinin activity has been isolated and identified from extracts of immature mango (Mangifera indica L.) seeds. The structures of zeatin, zeatin riboside, and N(6)-(Delta(2)-isopentenyl)adenine riboside were confirmed on the basis of their chromatographic behavior and mass spectra of trimethylsilyl derivatives. B...

journal_title：Plant physiology

authors： Chen WS

更新日期：1983-02-01 00:00:00

abstract：:The level of unsaturation of the constituent fatty acids of many glycerolipids in plant membranes is modified by environmental factors. The measurement of the rate of the desaturation of these fatty acids is essential to an understanding of how plants adapt to changing environments. This is difficult because of the co...

journal_title：Plant physiology

authors： Williams JP,Khan MU,Wong D

更新日期：1993-03-01 00:00:00

abstract：:Subcellular particles, identical in appearance to spherosomes observed in situ, were isolated from onions (Allium cepa L.) and cabbages (Brassica capitata L.). They were minute spherules about 1 micron in diameter, filled with an evenly stained osmiophilic matrix and delimited by a single, fineline membrane 20 to 30 A...

journal_title：Plant physiology

authors： Yatsu LY,Jacks TJ,Hensarling TP

更新日期：1971-12-01 00:00:00

abstract：:Mitochondria isolated from Kalanchoë daigremontiana, a Crassulacean acid metabolism plant, decarboxylate added malate to pyruvate at rates of up to 100 micromoles per hour per milligram original chlorophyll in the presence of ADP. Omitting ADP reduces this rate by approximately 50%. Antimycin A inhibits malate decarbo...

journal_title：Plant physiology

authors： Day DA

更新日期：1980-04-01 00:00:00

abstract：:Plastid transformation is routine in tobacco (Nicotiana tabacum) but 100-fold less frequent in Arabidopsis (Arabidopsis thaliana), preventing its use in plastid biology. A recent study revealed that null mutations in ACC2, encoding a plastid-targeted acetyl-coenzyme A carboxylase, cause hypersensitivity to spectinomyc...

journal_title：Plant physiology

authors： Yu Q,Lutz KA,Maliga P

更新日期：2017-09-01 00:00:00

abstract：:Ethylene supplied with indoleacetic acid at 0.1 and 1 mum inhibited elongation and enhanced swelling in epicotyls of decapitated and derooted pea seedlings (Pisum sativum L., var. Alaska). These growth responses were correlated with the development of cell walls rich in weak acid-extractable materials and pectic uroni...

journal_title：Plant physiology

authors： Mondal MH,Nance JF

更新日期：1975-03-01 00:00:00

abstract：:Experiments were conducted to determine whether symbiotic bacteroids of Bradyrhizobium japonicum produce exopolysaccharide within soybean (Glycine max [L.] Merr. cv ;Lee 74') nodules. B. japonicum strains RT2, a derivative of USDA 110 with resistance to streptomycin and rifampicin, and RT176-1, a mutant deficient in e...

journal_title：Plant physiology

authors： Tully RE,Terry ME

更新日期：1985-10-01 00:00:00

abstract：:Flowering depends upon long-distance transport to supply water for reproductive mechanisms to function. Previous physiological studies suggested that flowers operated uncoupled from stem xylem transport and received water primarily from the phloem. We demonstrate that the water balance of Southern magnolia (Magnolia g...

journal_title：Plant physiology

authors： Feild TS,Chatelet DS,Brodribb TJ

更新日期：2009-07-01 00:00:00

abstract：:Salinity-induced alterations in tomato (Lypersicon esculentum Mill. cv Heinz 1350) root plasma membrane properties were studied and characterized using a membrane vesicle system. Equivalent rates of MgATP-dependent H(+)-transport activity were measured by quinacrine fluorescence (DeltapH) in plasma membrane vesicles i...

journal_title：Plant physiology

authors： Suhayda CG,Giannini JL,Briskin DP,Shannon MC

更新日期：1990-06-01 00:00:00

abstract：:Peroxisomes are single membrane-delimited subcellular organelles that carry out numerous vital metabolic reactions in nearly all eukaryotes. Peroxisomes alter their morphology, abundance, and enzymatic constituents in response to environmental cues, yet little is known about the underlying mechanisms. In this work, we...

journal_title：Plant physiology

authors： Desai M,Hu J

更新日期：2008-03-01 00:00:00

abstract：:Like many microalgae, Chlamydomonas reinhardtii forms lipid droplets rich in triacylglycerols when nutrient deprived. To begin studying the mechanisms underlying this process, nitrogen (N) deprivation was used to induce triacylglycerol accumulation and changes in developmental programs such as gametogenesis. Comparati...

journal_title：Plant physiology

authors： Miller R,Wu G,Deshpande RR,Vieler A,Gärtner K,Li X,Moellering ER,Zäuner S,Cornish AJ,Liu B,Bullard B,Sears BB,Kuo MH,Hegg EL,Shachar-Hill Y,Shiu SH,Benning C

更新日期：2010-12-01 00:00:00