Abstract：
:The response of net photosynthesis and apparent light respiration to changes in [O2], light intensity, and drought stress was determined by analysis of net photosynthetic CO2 response curves. Low [O2] treatment resulted in a large reduction in the rate of photorespiratory CO2 evolution. Lightintensity levels influenced the maximum net photosynthetic rate at saturating [CO2]. These results indicate that [CO2], [O2] and light intensity affect the levels of substrates involved in the enzymatic reactions of photosynthesis and photorespiration. Intracellular resistance to CO2 uptake decreased in low [O2] and increased at low leaf water potentials. This response reflects changes in the efficiency with which photosynthetic and photorespiratory substrates are formed and utilized. Water stress had no effect on the CO2 compensation point or the [CO2] at which net photosynthesis began to saturate at high light intensity. The relationship between these data and recently published in-vitro kinetic measurements with ribulose-diphosphate carboxylase is discussed.
journal_name
Plantajournal_title
Plantaauthors
Collatz GJdoi
10.1007/BF00384961subject
Has Abstractpub_date
1977-01-01 00:00:00pages
127-32issue
2eissn
0032-0935issn
1432-2048journal_volume
134pub_type
杂志文章相关文献
PLANTA文献大全abstract：:Plants are exposed to a wide range of toxic and bioactive low-molecular-weight molecules from both exogenous and endogenous sources. Glycosylation is one of the primary sedative mechanisms that plants utilise in order to maintain metabolic homeostasis. Recently, a range of glycosyltransferases has been characterized i...
journal_title：Planta
pub_type： 杂志文章,评审
doi：10.1007/s004250000492
更新日期：2001-06-01 00:00:00
abstract：:Air-grown cells of Porphyridium purpurem contain appreciable carbonic-anhydrase activity, comparable to that in air-grown Chlamydomonas reinhardtii, but activity is repressed in CO2-grown cells. Assay of carbonic-anhydrase activity in intact cells and cell extracts shows all activity to be intracellular in Porphyridiu...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00393867
更新日期：1987-12-01 00:00:00
abstract：:1. The course of senescence in leaves of corn seedlings, as measured by the loss of chlorophyll, is shown to be controlled by two correlative influences: a) In the isolated leaf, the base tends to enhance yellowing of the tip region. b) In the leaf attached to the intact plant, correlative aging is delayed by interact...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00385624
更新日期：1966-06-01 00:00:00
abstract：:Arabinogalactan proteins (AGPs) are abundant plant cell surface proteoglycans widely distributed in plant species. Since high concentrations of beta-glucosyl Yariv reagent (betaglcY), which binds selectively to AGPs, inhibited cell division of protoplast-regenerated cells of the liverwort Marchantia polymorpha L. (Shi...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-009-0954-y
更新日期：2009-08-01 00:00:00
abstract：:Temperature and light are important environmental factors that affect flavonoid biosynthesis in grape berry skin. However, the interrelationships between temperature and light effects on flavonoid biosynthesis have not been fully elucidated at the molecular level. Here, we investigated the effects of temperature and l...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-012-1650-x
更新日期：2012-10-01 00:00:00
abstract：:Quinolizidine alkaloids formed in the leaves of Lupinus albus L. are translocated via the phloem to the other plant organs, especially the maturing fruits. Compared with amino-acid transport in the phloem, the alkaloids contribute about 8% to the overall nitrogen being exported from the leaf. Since it is likely that t...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00407083
更新日期：1984-11-01 00:00:00
abstract：:Symbiotic association of legume plants with rhizobia bacteria culminates in organogenesis of nitrogen-fixing root nodules. In indeterminate nodules, plant cells accommodate rhizobial infection by enclosing each bacterium in a membrane-bound, organelle-like compartment called the symbiosome. Numerous symbiosomes occupy...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-006-0369-y
更新日期：2007-02-01 00:00:00
abstract：:In the course of the life cycle of synchronized Euglena gracilis (14: 10 h light-dark cycles) two separate peaks of plastidial DNA synthesis appear. A first maximum (stage I) occurs 1 to 2 hours, after initiation of the light period, the second maximum (stage II) 9 to 10 hours after beginning of the light period. The ...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00390074
更新日期：1975-01-01 00:00:00
abstract：:Differentiation of shoots and roots or unorganized proliferation could be induced in tissue cultures of Solanum xanthocarpum when callus tissues habituated to a medium containing 2.4-D and meso-inositol were transferred to an auxinfree medium or to a medium in which the ratio of auxin and meso-inositol had been altere...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00398022
更新日期：1968-12-01 00:00:00
abstract：:Seed plants with compound leaves constitute a polyphyletic group, but studies of diverse taxa show that genes of the class 1 KNOTTED-LIKE HOMEOBOX (KNOX1) family are often involved in compound leaf development. This suggests that knox1 genes have been recruited on multiple occasions during angiosperm evolution (Bharat...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-006-0288-y
更新日期：2006-10-01 00:00:00
abstract：:The concentration of cytoplasmic free calcium ([Ca(2+)](cyt)) required to close higher plant plasmodesmata was investigated using corn (Zea mays L. cv. Black Mexican Sweet) suspension-culture cells. Physiological elevations of [Ca(2+)](cyt) were applied by cold treatment, and ion injection was also used to increase [C...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/PL00008141
更新日期：2000-01-01 00:00:00
abstract：:Soluble proteins from leaves of Nicotiana glauca Grah., N. langsdorffii Weinm., their reciprocal hybrids and amphiploid hybrid (N. glaucaxN. langsdorffii) were resolved by two-dimensional gel electrophoresis. Among a group of well-resolved polypeptides, in the isoelectric-point range of 5-5.5 and relative-molecular-ma...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00391086
更新日期：1989-10-01 00:00:00
abstract：:The enzymes gibberellin (GA) 20-oxidase and 3-oxidase are major sites of regulation in GA biosynthesis. We have characterised one member of each of the gene families encoding these enzymes that are highly expressed in elongating stems and in developing and germinating grains of wheat and are therefore likely to have p...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-005-0104-0
更新日期：2006-02-01 00:00:00
abstract：:Haploid plants of Nicotiana tabacum L. were produced in greater numbers from anthers on agar medium containing activated charcoal than on the same medium without charcoal. ...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00390524
更新日期：1974-09-01 00:00:00
abstract：:Cadmium contamination is a serious environmental problem for modern agriculture and human health. Salinity affects plant growth and development, and interactions between salt and cadmium have been reported. However, the molecular mechanisms of salinity-cadmium interactions are not fully understood. Here, we show that ...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-009-1070-8
更新日期：2010-01-01 00:00:00
abstract：:The effects of O2, growth-regulators and desiccation on callus growth and somatic embryo (embryoid) development were investigated in cultures of immature embryos of two lines of Triticum aestivum L. Callus and embryoid formation were induced on media that contained N(6)-furfurylamin-opurine (kinetin) and either 2,4-di...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00396349
更新日期：1988-09-01 00:00:00
abstract：:We have constructed a series of deletion mutants of Arabidopsis MAPK kinase kinase (AtMEKK1) and obtained a constitutively active mutant, AtMEKK1Delta166, which lacks in self-inhibitory sequence of N-terminal 166 amino acids but still has substrate specificity. AtMEKK1Delta166 predominantly phosphorylates AtMEK1, an A...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-005-0126-7
更新日期：2006-03-01 00:00:00
abstract：MAIN CONCLUSION:Phytosterol homeostasis may be maintained in leaves through diversion of intermediates into glycoalkaloid biosynthesis, whereas in tuber flesh, excess intermediates are catalyzed by tuber-specific StLAS - like , resulting in low tuber glycoalkaloids. Lanosterol synthase (LAS) and cycloartenol synthase (...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-017-2763-z
更新日期：2017-12-01 00:00:00
abstract：:Carnivorous plants acquire substantial amounts of nitrogen from insects. The tropical carnivorous plant Nepenthes produces trapping organs called pitchers at the tips of tendrils elongated from leaf ends. Acidic fluid is secreted at the bottoms of the pitchers. The pitcher fluid includes several hydrolytic enzymes, an...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-002-0768-7
更新日期：2002-07-01 00:00:00
abstract：:It is concluded from (14)C labelling kinetics as well as from enzyme analysis that formation of malate and aspartate from glycerate-3P via carboxylation of P-enolpyruvate occurs in isolated photosynthesizing spinach (Spinacia oleracea L.) chloroplasts. Carbon incorporation into both dicarboxylic acids was about 1% of ...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00388873
更新日期：1975-01-01 00:00:00
abstract：:Peptone is more effective than nitrate as a nitrogen source for heterotrophic cultures of Chlorella vulgaris (Emerson strain). It allows the production of an increased amount of algal material and supports an enhanced rate of cell division. Peptone-supplied heterotrophic cultures have a significantly higher content of...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00387131
更新日期：1967-06-01 00:00:00
abstract：:Aminoalcoholphosphotransferases (AAPT, EC 2.7.8.1 and EC 2.7.8.2) catalyze the transfer of CDP-aminoalcohols to sn-1, 2 diacylglycerol (DAG) to form phosphatidylaminoalcohols with the release of CMP. The Brassica napus L. AAPT1 gene (designated BnAAPT1) was identified from cDNA libraries of seedlings and developing se...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-003-1031-6
更新日期：2003-08-01 00:00:00
abstract：:Callose synthesis occurs at specific stages of plant cell wall development in all cell types, and in response to pathogen attack, wounding and physiological stresses. We determined the expression pattern of "upstream regulatory sequence" of 12 Arabidopsis callose synthase genes (CalS1-12) genes and demonstrated that d...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-008-0812-3
更新日期：2008-12-01 00:00:00
abstract：:Protoplasts were isolated from palisade tissue of tobacco leaves by treatment with pectinase and cellulase under aseptic conditions, and were cultured in a synthetic liquid medium. Calcofluor, a fluorescent brightener, was found to be an excellent stain for plant cell walls and was used to demonstrate regeneration of ...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00385097
更新日期：1970-12-01 00:00:00
abstract：:The free amino acid pools in the nitrogen-fixing blue-green algae Anabaena cylindrica, A. flos-aquae and Westiellopsis prolifica contain a variety of amino acids with aspartic acid, glutamic acid and the amide glutamine being present in much higher concentrations than the others. This pattern is characteristic of that...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00386075
更新日期：1972-06-01 00:00:00
abstract：MAIN CONCLUSION:Xyloglucan endo-transglycosylase/hydrolase ( Ph XET/H) regulates Podophyllum seed germination via GA mediated up-accumulation of Ph XET protein and subsequent endosperm weakening. Xyloglucan endo-transglycosylase/hydrolase (XET/H) belong to glycosyl hydrolase family 16, which play an important role in e...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-016-2520-8
更新日期：2016-08-01 00:00:00
abstract：:Ceratonia siliqua L. exhibited a sigmoid growth pattern with each stage being controlled by specific substances. At least three auxin-like substances were involved during fruit morphogenesis with the main one being at indole-acetic acid Rf. Auxin-like substances were present at highest level during stage II, when frui...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00390015
更新日期：1976-01-01 00:00:00
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：:The initial step in the synthesis of isoleucine (Ile) is the conversion of threonine to alpha-ketobutyrate. This reaction is carried out by threonine deaminase (TD), which is feedback-regulated by Ile. Mutations in TD that manifest insensitivity to Ile feedback inhibition result in intracellular accumulation of Ile. P...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/s00425-003-1129-x
更新日期：2004-03-01 00:00:00
abstract：:The effect of chemical stress on the polypeptide composition of the intercellular fluid of barley (Hordeum vulgare L.) and tomato (Lycopersicon esculentum Mill.) leaves has been studied. In some dicotyledonous plant species, including tomato, exposure to chemical stress leads to the denovo synthesis of intercellular p...
journal_title：Planta
pub_type： 杂志文章
doi：10.1007/BF00392527
更新日期：1989-05-01 00:00:00
