Abstract:
:D-threo chloramphenicol (CAP) at 5×10(-5) M, given continuously during a 24-hr aging period and subsequent post-age treatment with 2,4-dichlorophenoxyacetic acid (2,4-D)±kinetin markedly depressed cell expansion in Jerusalem artichoke (Helianthus tuberosus) tuber slices. Both the rate and total amount of expansion were reduced. An inhibitory effect of CAP could be detected at a concentration as low as 6.2×10(-6)M with 2,4-D alone and 1.6×10(-6) M with 2,4-D+kinetin. CAP also inhibited if given with 2,4-D to unaged tissue, and partially inhibited growth of aged tissue when supplied only during or only after aging. Expansion was inhibited when IAA was used in place of 2,4-D. Growth of tissue slices free of detectable bacteria was depressed by CAP, eliminating a possible indirect action of the antibiotic through inhibition of beneficial bacteria. CAP also prevented appearance of pink and brown pigments which normally occur in association with auxin-treated tissues. L-threo CAP did not inhibit growth or pigment formation. Cell division in the tuber slices was not inhibited, and was possibly even stimulated, by D-threo CAP, even at a concentration of 2×10(-4) M. It is concluded that the use of CAP for bacterial control in plant cultures can be hazardous and needs careful checking. Presumably the inhibitory action of CAP results from inhibition of growth-dependant protein metabolism in mitochondria and/or plastids which occurs both during aging and post-aging growth. Partial suppression of metabolic changes during aging would maintain the tissue in a state favouring relatively high mitotic activity and slow growth in response to auxin.
journal_name
Plantajournal_title
Plantaauthors
Setterfield Gdoi
10.1007/BF00431120subject
Has Abstractpub_date
1970-03-01 00:00:00pages
45-61issue
1eissn
0032-0935issn
1432-2048journal_volume
95pub_type
杂志文章相关文献
PLANTA文献大全abstract::Mannans are hemicellulosic polysaccharides in the plant primary cell wall (CW). Mature seeds, specially their endosperm cells, have CWs rich in mannan-based polymers that confer a strong mechanical resistance for the radicle protrusion upon germination. The rupture of the seed coat and endosperm are two sequential eve...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-010-1257-z
更新日期:2011-01-01 00:00:00
abstract::The effects of growth retardants, 4-hydroxy-5-isopropyl-2-methylphenyltrimethylammonium chloride-1-piperidine carboxylate (AMO-1618 or AMO) and 2-chloroethyltrimethylammonium chloride (CCC), applied with and without gibberellic acid (GA3), on β-[(3)H]alanine uptake and leakage from pea (Pisum sativum L.) and betacyani...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00380817
更新日期:1981-10-01 00:00:00
abstract::Aluminum (Al(3+)) has been recognized as a main toxic factor in crop production in acid lands. Phosphatidic acid (PA) is emerging as an important lipid signaling molecule and has been implicated in various stress-signaling pathways in plants. In this paper, we focus on how PA generation is affected by Al(3+) using Cof...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0348-3
更新日期:2007-01-01 00:00:00
abstract:MAIN CONCLUSION:Distribution of Conyza species is well correlated with human interference. Multiple herbicide resistance is caused by the attempt to overcome resistance to one mode of action by overuse of another. Conyza canadensis (CC) and Conyza bonariensis (CB) are troublesome weeds around the world. Extensive use o...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-015-2306-4
更新日期:2015-07-01 00:00:00
abstract:MAIN CONCLUSION:The Taenia solium HP6/TSOL18 antigen was produced in carrot cells, yielding an immunogenic protein that induced significant protection in an experimental murine model against T. crassiceps cysticercosis when orally administered. This result supports the potential of HP6/TSOL18-carrot as a low-cost anti-...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-015-2431-0
更新日期:2016-03-01 00:00:00
abstract::Three lines of evidence indicate a connection between high spermidine levels and floral initiation in thin-layer tissue cultures of Wisconsin-38 tobacco (Nicotiana tabacum L.). (1) Spermidine levels are much higher in floral buds than in vegetative buds. (2) Inhibition of spermidine synthesis by cyclohexylamine preven...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00403022
更新日期:1988-02-01 00:00:00
abstract::Freeze-fracturing of Funaria hygrometrica caulonema cells leads to a cleavage within the plasma membrane. The extraplasmatic and the plasmatic fracture faces differ in their particle density. The plasmatic fracture face in caulonema tip cells or in tip cells of side branches, but never in other caulonema cells, is fur...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00429759
更新日期:1984-04-01 00:00:00
abstract::Throughout a period of 23 days, during which the photosynthesis, growth and transpiration of two species of Atriplex were compared, A. spongiosa, a "C4" species (first products of photosynthesis = 4-C dicarboxylic acids), maintained net rates of leaf photosynthesis as high as, or higher than, those of A. hastata, a "C...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387639
更新日期:1970-09-01 00:00:00
abstract::Soybeans provide an excellent source of protein in animal feed. Soybean protein quality can be enhanced by increasing the concentration of sulfur-containing amino acids. Previous attempts to increase the concentration of sulfur-containing amino acids through the expression of heterologous proteins have met with limite...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-011-1487-8
更新日期:2012-01-01 00:00:00
abstract::Phi thickenings, bands of secondary wall thickenings that reinforce the primary wall of root cortical cells in a wide range of species, are described for the first time in the epiphytic orchid Miltoniopsis. As with phi thickenings found in other plants, the phi thickenings in Miltoniopsis contain highly aligned cellul...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-014-2194-z
更新日期:2015-02-01 00:00:00
abstract::Ferredoxin from the alga Bumilleriopsis filiformis Vischer (Xanthophyceae) is characterized by comparing some of its properties with spinach ferredoxin.It is similar to the known plant ferredoxins in the following points: a) Absorption spectrum. b) Molecular weight. c) Amino acid composition (approx. 100 amino acid re...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385204
更新日期:1970-06-01 00:00:00
abstract::By comparing (32)P-orthophosphate incorporation into nucleic acid extracts of sterile and non-sterile radish leaf discs, it was shown that contaminating bacteria cause a 2-4 fold increase in the rate of precursor incorporation and alter the pattern of label distribution after fractionation of the extracts by sedimenta...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385518
更新日期:1968-03-01 00:00:00
abstract::Persimmon fruits accumulate a large amount of proanthocyanidin (PA). Fruits of the mutant non-astringent (NA) type lose their ability to accumulate PA at an early stage of fruit development, whereas fruits of the normal astringent (A) type sustain PA accumulation until ripening. This allelotype is determined by the ge...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-010-1346-z
更新日期:2011-05-01 00:00:00
abstract::Leaf-elongation rates of Zea mays L. and Phaseolus vulgaris L. were measured in plants grown for 4 d in nutrient solution bubbled with N2 and in soil-grown waterlogged Phaseolus plants. Leaf water potential in both species was lower 3-4h after replacing aeration by N2-bubbling. In Zea, the water potential after 24 h o...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392806
更新日期:1989-02-01 00:00:00
abstract:MAIN CONCLUSION:UV - B radiation exposure for upto 3 h did not cause direct damage to physiology, but adjusted secondary metabolism and metabolites accumulation as an effective acclimation mechanism to mitigate the adverse effects of radiation. Artemisia annua L. plants were irradiated with UV-B radiation (280-315 nm; ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-014-2114-2
更新日期:2014-09-01 00:00:00
abstract::A study has been made of the changes occurring in Zea mays kernels exposed to thermal shock at the 48th h of soaking at 16°C, i.e., just before the protrusion of the root. Heat shock of 5 h at 46°C temporarily inhibits the resumption of root growth and consequently retards the protrusion of the root. On the ultrastruc...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00381249
更新日期:1979-01-01 00:00:00
abstract::A method was developed for electrofusion of higher-plant protoplasts from celery and protoplasts from the filamentous fungus Aspergillus nidulans. Initially, methods for the fusion of protoplasts from ecch species were determined individually and, subsequently, electrical parameters for fusion between the species were...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00393196
更新日期:1989-05-01 00:00:00
abstract::In contrast to seed plants, the roots of most ferns have a single apical cell which is the ultimate source of all cells in the root. The apical cell has a tetrahedral shape and divides asymmetrically. The root cap derives from the distal division face, while merophytes derived from three proximal division faces contri...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-013-1950-9
更新日期:2013-12-01 00:00:00
abstract::The pistil of tobacco (Nicotiana tabacum L. cv. Wisconsin 38) is comprised of two fused carpels. The stigma is bilobed, papillose, and at maturity is covered with a sticky exudate. The style is solid. Both stigma and style are made up of four tissue elements-epidermis, cortex, vascular, and transmitting tissue. Transm...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00389993
更新日期:1976-01-01 00:00:00
abstract::The soluble fraction of a cell-free system from immature seeds of Phaseolus vulgaris L. converts gibberellin A20 (GA20) to GA1 and GA5. It does however not metabolize GA1 and GA29 to GA5, showing that in this system GA20 is converted directly to GA5. The steps from GA20 to GA1 (3-hydroxylation) and from GA20 to GA5 (Δ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00410212
更新日期:1984-09-01 00:00:00
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 influence...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00384961
更新日期:1977-01-01 00:00:00
abstract::The aim of this work was to examine the metabolism of exogenous gluconate by a 4-day-old cell suspension culture of Arabidopsis thaliana (L.) Heynh. Release of (14)CO(2) from [1-(14)C]gluconate was dependent on the concentration in the medium and could be resolved into a substrate-saturable component (apparent K(m) of...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0842-1
更新日期:2002-12-01 00:00:00
abstract::The development of an infection in soybean [Glycine max L. cultivar (cv.) Peking] roots by incompatible (I) and compatible (C) populations of soybean cyst nematode (SCN) (Heterodera glycines) was assayed using an AffymetriX soybean GeneChip. This time-course microarray analysis, using 37,744 probe sets, measured trans...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-007-0581-4
更新日期:2007-11-01 00:00:00
abstract::The technique of EDTA-enhanced phloem exudation (King and Zeevaart, 1974: Plant Physiol. 53, 96-103) was evaluated with respect to the collection and identification of amino acids exported from senescing wheat leaves. Whilst the characteristics of the exudate collected conform with many of the accepted properties of p...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386538
更新日期:1981-05-01 00:00:00
abstract::Measurements of net CO2 exchange, malate accumulation, properties and capacity of phosphoenolpyruvate carboxylase (PEPC, EC 4.1.1.31) in leaves of different ages of two short-day dependent Crassulacean acid metabolism (CAM) plants (Kalanchoe blossfeldiana v. Poelln. Tom thumb and K. velutina Welw.) show that, in both ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00393911
更新日期:1982-05-01 00:00:00
abstract::Ribulose diphosphate (RuDP) and (PEP) phosphoenolpyruvate carboxylase enzyme activities were studied in young, mature, and senescent Portulaca oleracea leaves. While the absolute amount of both the C3 (RuDP) and C4 (PEP) carboxylase is less in senescent leaves than in mature leaves, RuDP carboxylase activity is reduce...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390316
更新日期:1976-01-01 00:00:00
abstract:MAIN CONCLUSION:The chlorophyll fluorescence parameter ΦNO is an excellent metric for the non-destructive monitoring of disease progression, measured over a broad range of light intensities. The suitability of the slow induction chlorophyll fluorescence parameters ΦPSII, ΦNPQ, and ΦNO to monitor in vivo disease progres...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-015-2427-9
更新日期:2016-01-01 00:00:00
abstract::Some cultured plant cells are able to acquire tolerance to various stresses when they are cultured under suitably controlled conditions. Induction of a high level of desiccation tolerance in suspension-cultured cells of the liverwort Marchantia polymorpha was examined for studying the mechanisms of desiccation toleran...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-010-1101-5
更新日期:2010-03-01 00:00:00
abstract::In the genome of Nostoc punctiforme PCC 73102, three functional β-carotene ketolase genes exist, one of the crtO and two of the crtW type. They were all expressed and their corresponding enzymes were functional inserting 4-keto groups into β-carotene as shown by functional pathway complementation in Escherichia coli. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-013-1846-8
更新日期:2013-05-01 00:00:00
abstract::We used a newly synthesized allotetraploid between C. sativus (2n = 2x = 14, n gametic chromosome number, x haploid chromosome number) and C. hystrix (2n = 2x = 24) to study the genomic events in its early generations. Results from cytological characterization of the F(1) and the allotetraploid progenies showed that t...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0381-2
更新日期:2007-02-01 00:00:00