Abstract：
:With an experimental system developed for aquatic plants using the mass spectrometry technique and infrared gas analysis of CO(2), we studied the responses to various O(2) concentrations of gas exchanges with the red macroalga Chondrus crispus S. The results were as follows. (a) Irrespective of the CO(2) concentration, net photosynthesis was O(2) sensitive with a 45 to 70% stimulation at 2% O(2). Even with high CO(2), a significant Warburg effect was detected. (b) Although photosynthesis was CO(2) sensitive, O(2) photoconsumption was only weakly affected by CO(2) even at high CO(2) where it was still photodependent. (c) O(2) photoconsumption was always sensitive to O(2) concentration whatever the CO(2) concentration, but with O(2) exceeding 20% the kinetics disagreed with the Michaelis-Menten model, with saturation being reached more rapidly. With various CO(2) concentrations, the apparent K(m) (O(2)) ranged from 4 to 16% O(2) with a relatively constant V(max) (O(2)) of about one-third the V(max) (CO(2)). (d) Dark respiration seemed to be O(2) insensitive. These results are discussed in relation to the nature of the processes able to consume O(2) in the light, and seem to be consistent with a significant involvement of a Mehlertype reaction.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Brechignac F,Andre Mdoi
10.1104/pp.78.3.545subject
Has Abstractpub_date
1985-07-01 00:00:00pages
545-50issue
3eissn
0032-0889issn
1532-2548journal_volume
78pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract：:The nitrodiphenyl ether herbicide 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitroacetophenone oxime-o-(acetic acid, methyl ester) (DPEI) induces light- and O(2)-dependent lipid peroxidation and chlorophyll (Chl) bleaching in the green alga Scenedesmus obliquus. Under conditions of O(2)-limitation, these effects are di...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.89.2.674
更新日期：1989-02-01 00:00:00
abstract：:The multifunctional movement protein (MP) of Tomato mosaic tobamovirus (ToMV) is involved in viral cell-to-cell movement, symptom development, and resistance gene recognition. However, it remains to be elucidated how ToMV MP plays such diverse roles in plants. Here, we show that ToMV MP interacts with the Rubisco smal...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.112.209213
更新日期：2013-01-01 00:00:00
abstract：:We examined the response of primary roots of maize (Zea mays L. cv Merit) to unilateral application of calcium with particular attention to the site of application, the dependence on growth rate, and possible contributions of thigmotropic stimulation during application. Unilateral application of agar to the root cap ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.100.2.762
更新日期：1992-01-01 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
pub_type： 杂志文章
doi：10.1104/pp.110.171462
更新日期：2011-06-01 00:00:00
abstract：:Intact spinach and barley chloroplast normally incorporate (14)C-acetate into palmitate and oleate as the major (14)C fatty acids. Addition of nitrite markedly altered the relative patterns of the products with the appearance of stearate, a drop in oleate, but no marked change in palmitate. Arsenite greatly increased ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.49.4.497
更新日期：1972-04-01 00:00:00
abstract：:Amitrole (3-amino-s-triazole), dichlormate (3,4-dichlorobenzyl methylcarbamate), and pyriclor (2,3,5-trichloro-4-pyridinol) inhibited normal carotenogenesis in etiolated wheat (Triticum aestivum L. var. Coker 65-20) seedlings. Carotenoid precursors accumulated in treated plants. In dichlormate-treated plants, zeta-car...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.47.1.144
更新日期：1971-01-01 00:00:00
abstract：:Transgenic Nicotiana plumbaginifolia plants that express either a 5-fold increase or a 20-fold decrease in nitrate reductase (NR) activity were used to study the relationships between carbon and nitrogen metabolism in leaves. Under saturating irradiance the maximum rate of photosynthesis, per unit surface area, was de...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.104.1.171
更新日期：1994-01-01 00:00:00
abstract：:Cobalt was shown to be essential for the symbiotic growth of Azolla filiculoides and Anabacna azollac in the absence of fixed nitrogen. Addition of 0.01 mug/liter cobalt resulted in large increases in yield, chlorophyll content and nitrogen fixation as compared to control cultures without cobalt. Cobalt was not requir...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.41.5.852
更新日期：1966-05-01 00:00:00
abstract：:Victorin, the pathotoxin from the host-specific pathogen, Helminthosporium victoriae, promotes the growth of coleoptile segments when given at concentrations that are high but which still show selective effects on susceptible and resistant tissue. The latent period in the growth response of both susceptible and resist...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.53.3.382
更新日期：1974-03-01 00:00:00
abstract：:Previous labeling experiments with (18)O(2) have supported the hypothesis that stress-induced abscisic acid (ABA) is synthesized through an indirect pathway involving an oxygenated carotenoid (xanthophyll) as a precursor. To investigate ABA formation under nonstress conditions, an (18)O(2) labeling experiment was cond...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.89.4.1039
更新日期：1989-04-01 00:00:00
abstract：:Salinity is an environmental stress that causes decline in crop yield. Avicennia officinalis and other mangroves have adaptations such as ultrafiltration at the roots aided by apoplastic cell wall barriers to thrive in saline conditions. We studied a cytochrome P450 gene from A. officinalis, AoCYP94B1, and its putativ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.20.01054
更新日期：2020-12-01 00:00:00
abstract：:Three lipoxygenase isozymes are synthesized in developing soybean (Glycine max [L.] Merr. cv Williams) embryos and are found in high levels in cotyledons of mature seeds (B Axelrod, TM Cheesbrough, S Zimmer [1981] Methods Enzymol 71: 441-451). Upon germination at least two new protein species appear which are localize...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.90.1.285
更新日期：1989-05-01 00:00:00
abstract：:Of the eight intermediates associated with the two pathways of UDP-d-glucuronic acid biosynthesis found in plants, only d-glucuronic acid inhibited myo-inositol 1-phosphate synthase (EC 5.5.1.4), formerly referred to as d-glucose 6-phosphate cycloaldolase. Inhibition was competitive. An attempt to demonstrate over-all...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.54.3.368
更新日期：1974-09-01 00:00:00
abstract：:A method is described for the release of large quantities of mesophyll cells from leaves of both cold-hardened and nonhardened winter rye seedlings by a combination of enzymic and physical maceration. Such preparations usually contain a certain percentage of nonviable cells and are thus not suitable for quantitative b...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.67.5.906
更新日期：1981-05-01 00:00:00
abstract：:Five recombinant inbred lines (RILs) of Arabidopsis (Arabidopsis thaliana), previously selected from the Bay-0 x Shahdara RIL population on the basis of differential leaf senescence phenotypes (from early senescing to late senescing) when cultivated under nitrogen (N)-limiting conditions, were analyzed to monitor meta...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.108.119040
更新日期：2008-07-01 00:00:00
abstract：:Flooding the intercellular air spaces of leaves with water was shown to cause rapid closure of stomata in Tradescantia pallida, Lactuca serriola, Helianthus annuus, and Oenothera caespitosa. The response occurred when water was injected into the intercellular spaces, vacuum infiltrated into the intercellular spaces, o...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.110.157685
更新日期：2010-07-01 00:00:00
abstract：:As a step to understanding how the photoreceptor phytochrome acts to change the transcription of specific nuclear genes in Lemna gibba, we wish to compare promoter elements involved in negative regulation by phytochrome with those involved in positive regulation. We have isolated three genes negatively regulated by ph...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.101.3.915
更新日期：1993-03-01 00:00:00
abstract：:The influence of anaerobiosis for 0.5 to 15 hours on the last steps of chlorophyll biosynthesis of etiolated oat seedlings was investigated. Phototransformation of protochlorophyllide to chlorophyllide is only slightly reduced and esterification of chlorophyllide is slightly increased by pretreatment under anaerobic c...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.66.4.576
更新日期：1980-10-01 00:00:00
abstract：:Qualitative and quantitative aspects of the mechanisms involved in the regulation of cytoplasmic pH during an acid-load have been studied in Acer pseudoplatanus cells. Two main processes, with about the same relative importance, account for the removal of H(+) from the cytoplasm, namely a ;metabolic consumption' of pr...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.82.3.846
更新日期：1986-11-01 00:00:00
abstract：:Although intact fruits of unripe cantaloupe (Cucumis melo L.) produce very little ethylene, a massive increase in ethylene production occurred in response to excision. The evidence indicates that this wound ethylene is produced from methionine via 1-aminocyclopropanecarboxylic acid (ACC) as in ripening fruits. Excisio...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.69.2.317
更新日期：1982-02-01 00:00:00
abstract：:Two α/β-fold hydrolases, KARRIKIN INSENSITIVE2 (KAI2) and Arabidopsis thaliana DWARF14 (AtD14), are necessary for responses to karrikins (KARs) and strigolactones (SLs) in Arabidopsis (Arabidopsis thaliana). Although KAI2 mediates responses to KARs and some SL analogs, AtD14 mediates SL but not KAR responses. To furth...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.114.240036
更新日期：2014-07-01 00:00:00
abstract：:Aminophospholipid ATPases (ALAs) are lipid flippases involved in transporting specific lipids across membrane bilayers. Arabidopsis (Arabidopsis thaliana) contains 12 ALAs in five phylogenetic clusters, including four in cluster 3 (ALA4-ALA7). ALA4/5 and ALA6/7, are expressed primarily in vegetative tissues and pollen...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.19.01332
更新日期：2020-04-01 00:00:00
abstract：:Plant shoot organs arise from initial cells that are recruited from meristematic tissues. Previous studies have shown that members of the WUSCHEL-related HOMEOBOX (WOX) gene family function to organize various initial cell populations during plant development. The function of the WOX4 gene is previously undescribed in...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.109.149641
更新日期：2010-03-01 00:00:00
abstract：:The triple isotope composition (delta17O and delta18O) of dissolved O2 in the ocean and in ice cores was recently used to assess the primary productivity over broad spatial and temporal scales. However, assessment of the productivity with the aid of this method must rely on accurate measurements of the 17O/16O versus ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.105.063768
更新日期：2005-08-01 00:00:00
abstract：:During the early stages of seed development, Arabidopsis (Arabidopsis thaliana) endosperm is syncytial and proliferates rapidly through repeated rounds of mitosis without cytokinesis. This stage of endosperm development is important in determining final seed size and is a model for studying aspects of cellular and mol...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.108.128108
更新日期：2008-12-01 00:00:00
abstract：:Heat shock factors (HSFs) are transcriptional regulators of the heat shock response. The major target of HSFs are the genes encoding heat shock proteins (HSPs), which are known to have a protective function that counteracts cytotoxic effects. To identify other HSF target genes, which may be important determinants for ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.104.042606
更新日期：2004-10-01 00:00:00
abstract：:The distribution of solutes in the various cells of sugar beet (Beta vulgaris L.) source leaves, petioles, and sink leaves was studied in tissue prepared by freeze-substitution. The differences in degree of cryoprotection indicated that sieve elements and companion cells of the source leaf, petiole, and sink leaf cont...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.52.6.585
更新日期：1973-12-01 00:00:00
abstract：:Formation of the riboside-5'-monophosphate is a general feature of the metabolism of cytokinins in plants. As part of a study of the biological significance of the nucleotide form of cytokinins, we analyzed a mutant of Arabidopsis thaliana deficient in adenine phosphoribosyltransferase (APRT) activity for its ability ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.95.3.900
更新日期：1991-03-01 00:00:00
abstract：:Starch production in all plants examined is altered by mutations of isoamylase-type starch-debranching enzymes (DBE), although how these proteins affect glucan polymer assembly is not understood. Various allelic mutations in the maize (Zea mays) gene sugary1 (su1), which codes for an isoamylase-type DBE, condition dis...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.125.3.1406
更新日期：2001-03-01 00:00:00
abstract：:In order to study the effects of desiccation on a photosynthetic system, light harvesting and light-induced electron transport processes were examined in pea cotyledons at various moisture levels, using in vivo fluorescence excitation spectra and fluorescence induction kinetics. Water sorption isotherms yielded thermo...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.79.1.248
更新日期：1985-09-01 00:00:00
