Abstract:
:The rate of glycolate excretion by Coccochloris peniocystis Kütz. cells incubated under conditions of low bicarbonate concentration and high light intensity was linear for only the initial 15 min of incubation and no additional glycolate accumulated in the medium after 20 min. Excretion was maximal in cells grown on 5% CO2 in air when transferred to an incubation medium containing no added bicarbonate. The inhibitor INH (isonicotinyl hydrazide) had no measurable effect on the amount of glycolate released whereas HPMS (α-hydroxy-2-pyridyl methanesulfonate) stimulated excretion 3-fold. Cells transferred to air from growth on 5% CO2 in air increased in carbonic anhydrase activity, while a decrease occurred in the cells' ability to excrete glycolate. Cells grown on air and switched to 5% CO2 in air showed an increase in their ability to excrete glycolate with a concomitant decrease in carbonic anhydrase activity. Diamox, a specific inhibitor of carbonic anhydrase, was found to stimulate excretion with both airgrown and 5% CO2-grown cells which had been off 5% CO2 for approximately 30 min. The rate of carbon fixation by 5% CO2-grown cells put on air was found to rise over a 110 min period, corresponding to both the induction period of carbonic anhydrase and the period of decline in the ability of the cells to excrete glycolic acid. These results suggest that the absence of carbonic anhydrase in 5% CO2-grown cells causes a stimulation of glycolate excretion when these cells are transferred to a low bicarbonate medium, because of an increased rate of glycolate formation due to the oxidation of ribulose diphosphate by molecular oxygen at low internal CO2 concentrations.
journal_name
Plantajournal_title
Plantaauthors
Ingle RK,Colman Bdoi
10.1007/BF00393232subject
Has Abstractpub_date
1976-01-01 00:00:00pages
217-23issue
3eissn
0032-0935issn
1432-2048journal_volume
128pub_type
杂志文章相关文献
PLANTA文献大全abstract::The semi-dominant gai mutation of arabidopsis confers a dark-green dwarf phenotype resembling that of gibberellin (GA)-deficient mutants. In contrast to GA-deficient mutants, gai mutants do not respond to GA treatments and accumulate higher levels of bioactive GAs than are found in wild-type controls. The gai mutation...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00202665
更新日期:1995-01-01 00:00:00
abstract::Experiments with 20 cm long segments of etiolated pea epicotyls treated in the middle with 0,5% gibberellin paste (GA3) in the form of a ring and also with a 0,5% indoleacetic acid (IAA) paste either near the apical or near the basal pole showed that in all cases after 24 hours there was a stronger transport of GA3 to...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385458
更新日期:1967-06-01 00:00:00
abstract::The effect of external calcium and sodium ion concentrations on the calcium fluxes on the Pelvetia fastigiata De Toni egg was measured. Decreasing external [Ca(2+)] greatly increased the permeability of the eggs to Ca(2+); at 1 mM external Ca(2+) this permeability was 60 times as great as it was at the normal [Ca(2+)]...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00396191
更新日期:1977-01-01 00:00:00
abstract::The relationship between adenine-nucleotide levels and metabolism-dependent membrane potential was studied in cells of Nitellopsis obtusa. Effects of ADP and AMP in the presence of ATP on electrogenic pump activity were measured in the dark, using the continuous perfusion method. Both ADP and AMP acte as competitive i...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00397424
更新日期:1984-09-01 00:00:00
abstract::A photoaffinity analog of tomato leaf RALF peptide (LeRALF), (125)I-azido-LeRALF, bound saturably to tomato suspension cultured cells in the dark in a classical receptor binding assay. Classical kinetic analyses revealed that the analog interacted with a single binding site on the surface of the cells with a KD of 0.8...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1442-z
更新日期:2005-07-01 00:00:00
abstract:MAIN CONCLUSION:Resistant Lactuca spp. genotypes can efficiently modulate levels of S-nitrosothiols as reactive nitrogen species derived from nitric oxide in their defence mechanism against invading biotrophic pathogens including lettuce downy mildew. S-Nitrosylation belongs to principal signalling pathways of nitric o...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-018-2858-1
更新日期:2018-05-01 00:00:00
abstract::A plant 135-kDa actin-bundling protein (P-135-ABP) isolated from pollen tubes of Lilium longiflorum (Thunb.) binds stoichiometrically to F-actin filaments and bundles them in vitro (E. Yokota et al., 1998, Plant Physiol. 116: 1421-1429). To further understand the mechanism of actin-filament bundle formation by P-135-A...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250050631
更新日期:1999-08-12 00:00:00
abstract::Amaranthus blitoides S. Watson (prostrate pigweed) populations resistant to acetolactate synthase (ALS; EC 4.1.3.18)-inhibiting herbicides and triazines (SuR/TR) were found in Israel. The Ganot population was 6- to 790-fold more resistant to ALS inhibitors than the wild type due to an altered target site. Molecular an...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0955-6
更新日期:2003-04-01 00:00:00
abstract::The kinetics of the intracellular redistribution of phytochrome (sequestering) in Avena sativa L. coleoptiles following a brief, saturating actinic pulse of red (R) light have been determined. Immunocytochemical labelling of phytochrome with monoclonal antibodies showed that at 22°C sequestering can occur within 1-2 s...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00391335
更新日期:1986-03-01 00:00:00
abstract::After sowing, mustard (Sinapis alba L.) seedlings were grown for 48 h in white light (25°C). These fully de-etiolated, green seedlings were used as experimental material between 48 and 72 h after sowing to study the control by phytochrome (Pfr) of hypocotyl elongation after a white light→dark transition. It was found ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387892
更新日期:1978-01-01 00:00:00
abstract::Aluminum (Al) toxicity is one of the major factors that limit plant growth in acid soils. Al-induced release of organic acids into rhizosphere from the root apex has been identified as a major Al-tolerance mechanism in many plant species. In this study, Al tolerance of Yuzu (Citrus Junos Sieb. ex Tanaka) was tested on...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-009-0945-z
更新日期:2009-07-01 00:00:00
abstract::The roots of most extant plants are able to become engaged in an interaction with a small group of fungi of the fungal order Glomales (Glomeromycota). This interaction-arbuscular mycorrhizal (AM) symbiosis-is the evolutionary precursor of most other mutualistic root-microbe associations. The molecular analysis of this...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-004-1436-x
更新日期:2005-05-01 00:00:00
abstract::Single large internode cells of the charophyte (giant alga) Chara corallina were dissected to give sheets of cell wall, which were then notched and their mechanical properties in tension determined. The cells were subjected to a thermal treatment in excess water (cf. cooking), which had little effect on strength but i...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250100641
更新日期:2002-01-01 00:00:00
abstract::Protein phosphatase 2A (PP2A) is a serine/threonine-specific phosphatase comprising a catalytic subunit (C), a scaffolding subunit (A), and a regulatory subunit (B). The B subunits are believed to be responsible for substrate specificity and localization of the PP2A complex. In plants, three families of B subunits exi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-009-0998-z
更新日期:2009-10-01 00:00:00
abstract::FLOWERING LOCUS C (FLC) is a central floral repressor for the determination of flowering time in Arabidopsis. FLC expression is reactivated upon fertilization and regulated during seed development to ensure the appropriate floral behavior; however, the molecular mechanism for this process is largely unknown. Here, we ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-011-1484-y
更新日期:2011-12-01 00:00:00
abstract::We have examined the activity and regulation of the glycolate oxidizing enzyme in ten different greening stages of the Chlorella mutant Chlorella fusca C-1.1.10.10 The mutant has lost the ability to form chlorophyll in the dark. The dark grown cells exposed to light need after a short lag phase about 12 hs for normal ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388755
更新日期:1974-01-01 00:00:00
abstract::A bioassay for the inhibition of flowering involving the in vitro culture of excised, partially-induced, apices of Viscaria candida is described. This bioassay has been used to detect flowering inhibition in extracts from Kalanchoe blossfeldiana. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387363
更新日期:1972-06-01 00:00:00
abstract::Cells of Daucus carota grown in a liquid medium produced large amounts of cyanidin as the only flavonoid aglycon. After inoculation in fresh medium a maximum activity of phenylalanine ammonia lyase (PAL; EC 4.3.1.5) was observed within 24 h. L-α-aminooxy-β-phenylpropionic acid (L-AOPP), thought to be a competitive inh...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00384567
更新日期:1980-08-01 00:00:00
abstract::A study has been made of the wall fibrils produced by tobacco protoplasts, using scanning electron microscopy in conjunction with negative staining. It has been shown that the fibres seen in scanning electron microscopy correspond to aggregates of microfibrils. These aggregates are only visible where they are lifted c...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388233
更新日期:1979-01-01 00:00:00
abstract::Epicotyl and primary leaves of pea seedlings (Pisum sativum L., var. Alaska) were found to contain soluble and microsomal enzymes catalyzing the addition of glutathione to the olefinic double bond of cinnamic acid. Glutathione S-cinnamoyl transfer was also obtained with enzyme preparations from potato slices and cell ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388845
更新日期:1979-10-01 00:00:00
abstract::Cutin and suberin polymers from various anatomical regions of grapefruit were analyzed chemically and ultrastructurally. The leaf, fruit peel and juice-sac showed an amorphous cuticular layer. The cutin in the leaf was composed of 10,16-dihydroxy C16 acid and its positional isomers as the major monomers whereas 16-hyd...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385755
更新日期:1980-10-01 00:00:00
abstract::The jasmonic acid (JA)-dependent regulation of the Thi2.1 gene had previously been exploited for setting up a genetic screen for the isolation of signal transduction mutants of Arabidopsis thaliana (L.) Heynh. that constitutively express the thionin gene. Several cet mutants had been isolated which showed a Constituti...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0907-1
更新日期:2002-11-01 00:00:00
abstract::Alfalfa (Medicago sativa L. cv. Canadian No. 1), tobacco (Nicotiana tabacum L. var. humilis) and wheat (triticum monococcum L.) cells were grown in a defined, liquid medium containing either ammonium sulfate, L-glutamine or potassium nitrate as the sole nitrogen source, and the effects of the tricarboxylic-acid (TCA) ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388630
更新日期:1978-01-01 00:00:00
abstract:MAIN CONCLUSION:This study provides new insights that alternative splicing participates with transcriptional control in defense responses to Colletotrichum sublineola in sorghum In eukaryotic organisms, alternative splicing (AS) is an important post-transcriptional mechanism to generate multiple transcript isoforms fro...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-019-03309-w
更新日期:2019-11-27 00:00:00
abstract::Abscisic acid (ABA) is an important stress phytohormone that plays an essential role in mediating the signaling networks associated with plant responses to various abiotic stresses. In the present study, we isolated a gene CrNCED1 encoding the rate-limiting enzyme of ABA synthesis, 9-cis-epoxycarotenoid dioxygenase (N...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-013-1963-4
更新日期:2014-01-01 00:00:00
abstract::Developing wheat (Triticum aestivum L.) endosperm was examined using ultrathin sections prepared from tissues harvested at 5, 9, 16 and 25 d after flowering. Protein bodies were evident by 9 d and displayed a variety of membranous structures and inclusions. The Golgi apparatus was a prominent organelle at all stages, ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392442
更新日期:1988-11-01 00:00:00
abstract::We have screened a cDNA library prepared from tomato (Lycopersicon esculentum Mill. cv. VFNT Cherry) shoot tips for homeobox-containing clones. The isolated cDNA clone THOM1 (tomato homeobox gene 1) contains a homeobox, a leucine zipper motif and and an acidic region. These features support the hypothesis that the THO...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00195713
更新日期:1995-01-01 00:00:00
abstract::PR-1 has been extensively used as a marker for salicylic acid (SA)-mediated defence and systemic and local acquired resistance. The Arabidopsis Genome Project annotates At2g19990 as PR-1. This gene is also identified as PR-1 in two "full genome" Arabidopsis microarrays, and TAIR cites approximately 60 articles to desc...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1355-x
更新日期:2004-10-01 00:00:00
abstract::Mineral nutrients are distributed in a non-uniform manner in the soil. Plasticity in root responses to the availability of mineral nutrients is believed to be important for optimizing nutrient acquisition. The response of root architecture to heterogeneous nutrient availability has been documented in various plant spe...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-014-2150-y
更新日期:2014-10-01 00:00:00
abstract::A re-examination has been made of the supposed regulation by the axis of cotyledonary isocitrate lyase (EC 4.1.3.1) activity in Cucumis sativas L. and Cucurbita maxima Duch. and greening in cucumis. When precautions are taken to ensure that isolated cotyledons and cotyledons attached to the axis have equal access to o...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388904
更新日期:1976-01-01 00:00:00