abstract：:The radial movement of oxygen in excised corn and jack bean roots was measured with a platinum wire electrode embedded in the root tissue. Measurements were made with the roots exposed to air and with the roots immersed in nutrient solution in the presence and absence of millimolar sodium azide. Effective rates of oxy...

journal_title：Plant physiology

authors： Fiscus EL,Kramer PJ

更新日期：1970-06-01 00:00:00

abstract：:Soybean cell suspension cultures grew on defined media with ammonium as the sole nitrogen source if Krebs cycle acids were added. Satisfactory growth was obtained with ammonium salts of citrate, malate, fumarate, or succinate, when compared with the regular medium containing nitrate and ammonium. Little or no growth o...

journal_title：Plant physiology

authors： Gamborg OL,Shyluk JP

更新日期：1970-05-01 00:00:00

abstract：:Conditions influencing the opening of the bean (Phaseolus vulgaris L.) and cotton (Gossypium hirsutum L.) hypocotyl hook were defined. Such hooks were shown to undergo geotropic curvature; orientation of the hook with respect to gravity greatly affected the observed opening. Cotton and bean hooks behaved exactly oppos...

journal_title：Plant physiology

authors： Powell RD,Morgan PW

更新日期：1970-05-01 00:00:00

abstract：:The decarboxylation of endogenous free glutamic acid by Chlorella pyrenoidosa, Marburg strain, was induced by a variety of metabolic poisons, by anaerobic conditions, and by freezing and thawing the cells. The rate of decarboxylation was proportional to the concentration of inhibitor present. Possible mechanisms which...

journal_title：Plant physiology

authors： Lane TR,Stiller M

更新日期：1970-05-01 00:00:00

abstract：:Incubation of freshly cut carrot tissue in Na(3)ADP and Na(3)ATP promotes a marked intracellular increase in both ADP and ATP. The rapid increase in ATP during an ADP incubation and in ADP during an ATP incubation results from the activity of cytoplasmic enzyme systems upon the nucleotide absorbed into the cell from t...

journal_title：Plant physiology

authors： Adams PB

更新日期：1970-04-01 00:00:00

abstract：:Maceration at liquid nitrogen temperatures, use of poly-vinylpyrrolidone, and careful pH control are essential to the isolation of ribosomes and polysomes from deciduous fruit tissue. Characteristics of the ribosomes and constituent RNA are described. The distribution of ribosomes among monomer and polymer forms remai...

journal_title：Plant physiology

authors： Ku LL,Romani RJ

更新日期：1970-04-01 00:00:00

abstract：:Phaseolus vulgaris mitochondria incubated in sucrose swell rapidly upon the addition of phospholipase A. Bovine serum albumin inhibits the swelling. The release of free fatty acids as a result of phospholipase A action on the mitochondria is detected only in the presence of bovine serum albumin, which promotes the hyd...

journal_title：Plant physiology

authors： Earnshaw MJ,Truelove B

更新日期：1970-03-01 00:00:00

abstract：:The translocation of radioactive photosynthate was studied in blades detached from plants which had been grown in nutrient solution with and without potassium. Basipetal translocation decreased in the blades of plants deprived of potassium, even when deficiency symptoms were not visible. In such slightly potassium-def...

journal_title：Plant physiology

authors： Hartt CE

更新日期：1970-02-01 00:00:00

abstract：:The Ussing-Theorell equation, which provides a fundamental test for the independent passive movement of ions under conditions of nonequilibrium, has been used to assess the active and passive components of K(+) uptake by segments of pea epicotyl (Pisum sativum L. cultivar Alaska), incubated for 24 hours in both 1-fold...

journal_title：Plant physiology

authors： Macklon AE,Higinbotham N

更新日期：1970-02-01 00:00:00

abstract：:Radioactive gibberellin A(5) ((3)H-GA(5)) was synthesized from gibberellic acid. When it was applied to dwarf peas grown in the dark, an average of 3% was converted to another acid gibberellin within 48 hours. The biological activity of the metabolite did not account for the response to applied GA(5). GA(5) is therefo...

journal_title：Plant physiology

authors： Musgrave A,Kende H

更新日期：1970-01-01 00:00:00

abstract：:After 3 days of exposure to 10(-3) and 10(-4) M decenylsuccinic acid, winter wheat plants wilted and died. Decenylsuccinate at 10(-3) M inhibited (32)P uptake by barley roots and wheat roots and resulted in significant (P

journal_title：Plant physiology

authors： Green DG,Ferguson WS,Warder FG

更新日期：1970-01-01 00:00:00

abstract：:Compatible and incompatible pollen tubes growing on detached Lilium longiflorum pistils which had been prelabeled with myoinositol-U-(14)C take up a portion of the label and utilize it for biosynthesis of tube wall substance. The label is transferred from pistil to pollen tubes apparently via the secretion products (e...

journal_title：Plant physiology

authors： Kroh M,Miki-Hirosige H,Rosen W,Loewus F

更新日期：1970-01-01 00:00:00

abstract：:The Marquillo x Kenya Farmer 1 "grass-clump" dwarf selection of Triticum aestivum L. was grown under continuous 2000 foot candle light and several regimes of alternating 16 degrees and 26 degrees temperatures combined in total cycle lengths of 6, 12, 24, or 48 hr. Plants at 26 degrees grew as normal wheat. Those expos...

journal_title：Plant physiology

authors： Mahon JD,Canvin DT

更新日期：1969-12-01 00:00:00

abstract：:Phycoerythrin, a photosynthetic accessory pigment, was isolated from Porphyridium cruentum and examined by electron microscopy and disc gel electrophoresis. The absorption monomer, with maxima at 563, 545, and a shoulder at 500 nm, has a molecular weight of about 300,000. With phosphotungstic acid staining it appears ...

journal_title：Plant physiology

authors： Gantt E

更新日期：1969-11-01 00:00:00

abstract：:Extracts of maize (Zea mays L.) plants contain substances which, in vitro, inhibit an indoleacetic acid (IAA) oxidase enzyme from maize. The extracts can be freed of inhibitors by dialysis or by passage through columns of polyvinylpyrrolidone powder. Inhibitor-free extracts contain an IAA oxidase enzyme which requires...

journal_title：Plant physiology

authors： Gelinas D,Postlethwait SN

更新日期：1969-11-01 00:00:00

abstract：:Computing techniques are used to simulate the course of uptake of K(+), Na(+), and Cl(-) by low-salt roots. Measurements of the fluxes of these ions in high-salt roots are used to calculate membrane permeabilities, which are then used to calculate cell uptake. In this way it is possible to test the predictive value of...

journal_title：Plant physiology

authors： Pitman MG

更新日期：1969-10-01 00:00:00

abstract：:An investigation was made to determine the univalent cation requirements of starch synthetase from a variety of plant species of economic importance. The particulate enzyme from sweet corn was shown to have an absolute requirement for potassium, with the optimum activation occurring at 0.05 M KCl. Rubidium, cesium, an...

journal_title：Plant physiology

authors： Nitsos RE,Evans HJ

更新日期：1969-09-01 00:00:00

abstract：:A method was developed where soybean seedlings were grown without roots to study the influence of hormones of root origin on shoot growth. Excision of the root resulted in inhibition of apical section growth and DNA synthesis and inhibited elongating section growth. A synthetic cytokinin restored DNA synthesis in the ...

journal_title：Plant physiology

authors： Holm RE,Key JL

更新日期：1969-09-01 00:00:00

abstract：:The construction, operation, and effectiveness of an abscission measuring instrument called an abscissor is described. The device measured the force required for a spring-opposed plunger to shear abscission zone explants and was capable of automatically recording break strength data. Examples of data obtained with the...

journal_title：Plant physiology

authors： Craker LE,Abeles FB

更新日期：1969-08-01 00:00:00

abstract：:The fine structure of the chloroplast of wild-type and 9 photosynthetic mutant strains of Chlamydomonas reinhardi is described. The chloroplast phenotypes of the mutant strains are clearly distinct from the wild type in all but 2 cases. Moreover, strains with similar photosynthetic disabilities have structurally simil...

journal_title：Plant physiology

authors： Goodenough UW,Levine RP

更新日期：1969-07-01 00:00:00

abstract：:Explants of genetic tumors, tumors initiated by Agrobacterium tumefaciens strains B-6 and T-37, and excised pith plugs from Nicotiana glauca, N. langsdorffii, and N. glauca-langsdorffii were cultured on Murashige and Skoog medium. All cultures, pith callus and tumors with the exception of N. langsdorffii pith grew on ...

journal_title：Plant physiology

authors： Sharp WR,Gunckel JE

更新日期：1969-07-01 00:00:00

abstract：:Radioactive glutamic acid and N-acetylglutamic acid have been incubated with normal and wilted leaf discs and radioactivity recovered in uncombined proline. The discs which had been placed under moisture stress incorporated considerably more label in uncombined proline than did normal discs.In extracts of swiss chard ...

journal_title：Plant physiology

authors： Morris CJ,Thompson JF,Johnson CM

更新日期：1969-07-01 00:00:00

abstract：:The rates of absorption and metabolism of 3-amino-2,5-dichlorobenzoic acid (amiben) were investigated in 3-day-old roots of amiben-sensitive velvetleaf (Abutilon theophrasti Medic.) and amiben-tolerant morningglory [Ipomoea hederacea (L.) Jacq.].The initial rates of amiben absorption and binding were identically conce...

journal_title：Plant physiology

authors： Stoller EW

更新日期：1969-06-01 00:00:00

abstract：:After incubation for 1 hr with (75)Se-selenate, excised roots of Astragalus crotalariae, a selenium-accumulating species, and A. lentiginosus, a nonaccumulator, had absorbed radioactivity to levels well over the external concentration. About 98% of the radioactivity was ethanol-soluble, and when analyzed by column and...

journal_title：Plant physiology

authors： Shrift A,Ulrich JM

更新日期：1969-06-01 00:00:00

abstract：:Non-dormant and dormant seeds of Avena fatua metabolize (14)C-maltose in different ways: in non-dormant seeds, (14)C-maltose administered to the endosperm is readily converted to sucrose in the scutellum and translocated to the embryo; in dormant seeds, little sucrose is synthesized from (14)C-maltose, and maltose and...

journal_title：Plant physiology

authors： Chen SS,Varner JE

更新日期：1969-05-01 00:00:00

abstract：:The action spectrum of apparent photosynthesis for attached radish (Raphanus sativus L. var. Early Scarlet Globe) and corn (Zea mays L. var. Pride V.) leaves was measured at 300 mul/l CO(2) and both 21% and 2% O(2). The spectra were measured at light intensities where apparent photosynthesis was proportional to intens...

journal_title：Plant physiology

authors： Bulley NR,Nelson CD,Tregunna EB

更新日期：1969-05-01 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：:We have proposed that the lateral inequality of auxin associated with the phototropic response is a consequence of a light-induced impairment of basipolar transport of the hormone. If this is so, the dose-response curve for photoinhibition of auxin transport should resemble that for phototropism. Further, the waveleng...

journal_title：Plant physiology

authors： Shen-Miller J,Cooper P,Gordon SA

更新日期：1969-04-01 00:00:00

abstract：:Experiments in which chloroplasts were washed with tris and tricine buffers at different pH's indicated that the non-protonated (uncharged) form of tris was inhibitory to the Hill reaction while the protonated form of tris and the zwitterionic forms of tricine were non-inhibitory. Buffers analogous to tris and tricine...

journal_title：Plant physiology

authors： Yamashita T,Butler WL

更新日期：1969-03-01 00:00:00

abstract：:The metabolism of arginine by etiolated pumpkin (Cucurbita moschata) seedlings was studied over various time and age intervals by injecting arginine-U-(14)C into the cotyledons. At most, 25% of the (14)C was transported from the cotyledon to the axis tissue and the amount of this transport decreased with increasing ag...

journal_title：Plant physiology

authors： Splittstoesser WE

更新日期：1969-03-01 00:00:00

abstract：:All mutants at 3 loci in Arabidopsis thaliana (L.) Heynh., a higher plant, that are associated with the synthesis or coupling of the thiazole moiety of thiamine are susceptible to reversible glucose inhibition. In contrast, several different alleles involved in the synthesis of the pyrimidine moiety of the vitamin are...

journal_title：Plant physiology

authors： Li SL,Redei GP

更新日期：1969-02-01 00:00:00

abstract：:Disc electrophoresis was used to separate water soluble proteins from hardy, non-hardy, and frost killed cabbage (Brassica oleracea var. capitata) leaves. Amidoschwarz staining failed to reveal any new bands as a result of hardening although the relative amounts of proteins in individual bands changed. Sulfhydryl grou...

journal_title：Plant physiology

authors： Morton WM

更新日期：1969-02-01 00:00:00

abstract：:Mitochondria from cotyledons of Vigna sesquipedalis (L.) Fruwirth (starchy seed) showed no NAD-isocitric dehydrogenase (NAD-IDH) activity by the methods which have been known to be useful for the detection of NAD-IDH in mitochondria of plants including castor bean and alaska pea. When the Vigna cotyledon mitochondria ...

journal_title：Plant physiology

authors： Yamamoto Y

更新日期：1969-02-01 00:00:00

abstract：:Isolated fifth internodes of Coleus blumei Benth. were supplied with (3)H-IAA at their apical ends. Microradioautography, using thin sections (0.25-0.5 microns) of Epon embedded tissue and liquid emulsion techniques, revealed extremely specific localization of the acetone-insoluble derivatives of IAA. Changes in the p...

journal_title：Plant physiology

authors： Sabnis DD,Hirshberg G,Jacobs WP

更新日期：1969-01-01 00:00:00

abstract：:Glycolate and glyoxylate stimulated 100% to 300% the rate of oxygen evolution by Scenedesmus in the light in the absence of added carbon dioxide. This stimulation occurred either aerobically or anaerobically, and was sensitive to CMU. Aerobic dark respiration was stimulated 25% to 100% by glycolate. This phenomenon wa...

journal_title：Plant physiology

authors： Nelson EB,Tolbert NE,Hess JL

更新日期：1969-01-01 00:00:00

abstract：:The origin of the ethylene carbon skeleton in Penicillium digitatum appears to be intimately associated with the Krebs cycle acids, particularly the middle carbon atoms of dicarboxylic acids. Among the other compounds studied, certain carbon atoms of beta-alanine, propionic acid, and methionine can be incorporated int...

journal_title：Plant physiology

authors： Jacobsen DW,Wang CH

更新日期：1968-12-01 00:00:00

abstract：:Enhancement phenomena in photosynthesis of the diatom Phaeodactylum tricornutum Lewin were studied by means of a Haxo oxygen electrode and 2 monochromatic light beams. It was necessary to correct for a minor non-linearity in rate oxygen evolution vs. intensity similar to that reported for Chlorella. Action spectra on ...

journal_title：Plant physiology

authors： Mann JE,Myers J

更新日期：1968-12-01 00:00:00

abstract：:Phosphoenolpyruvate carboxylase was purified from corn root tips about 80-fold by centrifugation, ammonium sulfate fractionation, and anion exchange and gel filtration chromatography. The resulting preparation was essentially free from malate dehydrogenase, isocitrate dehydrogenase, malate enzyme, NADH oxidase, and py...

journal_title：Plant physiology

authors： Ting IP

更新日期：1968-12-01 00:00:00

abstract：:Chymotrypsin inhibitor I is a protein that can be induced to accumulate in potato leaflets within hr in the light when leaflets are detached from intact plants and supplied with water. This increase in inhibitor I is not accompanied by an increase in all proteins in the detached leaflets. The accumulation is polar, pr...

journal_title：Plant physiology

authors： Ryan CA

更新日期：1968-11-01 00:00:00

abstract：:Some clones of Spirodela polyrrhiza form dormant bodies called turions which require several weeks of chilling treatment before they proceed to renew growth and develop into vegetative fronds. The individual fronds of Spirodela are less than 5 mm long and can be grown aseptically in liquid culture. Turion formation an...

journal_title：Plant physiology

authors： Perry TO

更新日期：1968-11-01 00:00:00