Abstract:
:Seedlings of C. rubrum were irradiated with different light qualities and intensities following a single inductive dark period. Our results show that relatively low intensity white light (35-100 ft. c.) does not support flower development while high intensity white light (650-800 ft. c.) permits 100% flowering. We have shown that the low intensity light inhibiton of flower development is not due to suboptimal photosynthesis. Relatively low intensities of light rich in far-red or blue wavebands sustains optimum flower development, whereas red light is totally ineffective in this respect. Considering that the intensity dependent High Energy Reaction (HER) has its action maxima in the blue and far-red we propose that HER may be positively involved in the flower development of C. rubrum. Our study further suggests that there may be some flower inhibitory component at play in relatively low intensity white light conditions and HER may be required to counteract this flower inhibitory effect.
journal_name
Plantajournal_title
Plantaauthors
Sawhney Rdoi
10.1007/BF00391905subject
Has Abstractpub_date
1977-01-01 00:00:00pages
103-6issue
2eissn
0032-0935issn
1432-2048journal_volume
133pub_type
杂志文章相关文献
PLANTA文献大全abstract::The kinetics and localization of Rb(+) uptake by barley roots were studied as function of the water potential of the medium. At potentials causing plasmolysis, uptake is reduced and becomes restricted to the outer surface of the root. The conclusion is that, at least for Rb(+) in the range of low external concentratio...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386413
更新日期:1980-03-01 00:00:00
abstract::Haploid callus cultures of selected races of Lycopersicon (tomato) species can be obtained from anther culture. This is a further demonstration of a proposed general method of haploid culture developed with Arabidopsis thaliana. Differentiation of haploid callus of Lycopersicon esculentum can be controlled both in the...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387721
更新日期:1972-06-01 00:00:00
abstract::Cells of Nicotiana tabacum L. suspension cultures were treated with the respiratory inhibitor rotenone, which specifically inhibits complex I activity of mitochondria. Rotenone retarded cell growth, as shown by decreases in fresh weight, dry weight and cell numbers on a suspension-volume basis. However, rates of the c...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250000457
更新日期:2001-04-01 00:00:00
abstract::A monoclonal antibody produced to abscisic acid (ABA) has been characterised and the development of a radioimmunoassay (RIA) for ABA using the antibody is described. The antibody had a high selectivity for the free acid of (S)-cis, trans-ABA. Using the antibody, ABA could be assayed reliably in the RIA over a range fr...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00401020
更新日期:1988-03-01 00:00:00
abstract::The activity and allosteric properties of plant phosphoenolpyruvate carboxylase (PEPC; EC 4.1.1.31) are controlled posttranslationally by specific reversible phosphorylation of a strictly conserved serine residue near the N-terminus. This up/down-regulation of PEPC is catalyzed by a dedicated and highly regulated seri...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250100604
更新日期:2001-07-01 00:00:00
abstract:MAIN CONCLUSION:Differential palisade and spongy parenchyma structural changes in oilseed rape leaf were demonstrated. These dismantling processes were linked to early senescence events and associated to remobilization processes. During leaf senescence, an ordered cell dismantling process allows efficient nutrient remo...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-014-2182-3
更新日期:2015-02-01 00:00:00
abstract::To determine the sites of synthesis of chloroplast-envelope proteins, we have analysed several enzyme and translocator functions ascribed to the envelope membranes, and investigated the envelope polypeptide composition of plastids isolated from 70S ribosome-deficient leaves of rye (Secale cereale L.) generated by grow...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00391269
更新日期:1985-12-01 00:00:00
abstract::Gene-for-gene resistance is a well-known type of plant disease resistance. It is governed by plant resistance (R) genes and their matching pathogen avirulence (Avr) genes. This resistance is characterized by a hypersensitive response (HR) resulting from the interaction between products of a complementary R and Avr gen...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-005-0036-8
更新日期:2005-12-01 00:00:00
abstract::As seen in the scanning electron microscope the surface wax of leaves of Phormium tenax L. consists of vertical, plate-like crystals. These increase in size and number and undergo a change in form during development. The abaxial surface has a dense covering of wax crystals, but none are present on the ridges over vasc...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390884
更新日期:1974-06-01 00:00:00
abstract::The appearance of glutamine synthetase (GS. EC 6.3.1.2) in response to light and nitrogen (NO 3 (-) , NH 4 (+) ) was studied in the organs (roots, hypocotyl, cotyledonary whorl) of the Scots pine (Pinus sylvestris L.) seedling. Although GS activity was found to be mainly (> 80%) located in the whorl where it increased...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00192807
更新日期:1992-10-01 00:00:00
abstract::The salt glands of Aegiceras corniculatum have been examined by light- and electron-microscope techniques. A gland consists of a large number of abutting secretory cells and a single, large basal cell. The secretory cells and basal cell are joined by well defined plasmodesmata. The glandular cuticle shows differences ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386836
更新日期:1971-09-01 00:00:00
abstract::Studies reported here reveal a low nitrate reductase activity in the shoots of MTU 9 rice plants while in roots high enzyme activity has been recorded.Under pathogenesis, a low nitrate reductase activity in the roots and a high enzyme activity in the shoots have been recorded in susceptible rice plants. In the resista...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390132
更新日期:1966-06-01 00:00:00
abstract::Phytochrome, activated by continuous red light, increases the amount of total polyadenylated RNA during photomorphogenesis of mustard (Sinapis alba L.) cotyledons. In-vitro translation of total polyadenylated RNA in a reticulocyte translation system has shown that the activity of translatable β-amylase mRNA is increas...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00398676
更新日期:1987-07-01 00:00:00
abstract::The lipid composition and degree of unsaturation of fatty acids has been measured for membranes isolated from leaves of Pisum sativum grown under either summer or winter conditions. Although the lipid-class composition was not significantly changed for the two growth conditions the degree of unsaturation of the fatty ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00405185
更新日期:1983-04-01 00:00:00
abstract::The rate of CO2- and p-benzoquione-dependent photosynthetic O2 evolution by Anabaena variabilis cells remained unaltered and the rate of O2 uptake observed after switching off the light (endogenous respiration) was enhanced by a factor of 6-8 when the O2 concentration was increased from 200 to 400 μM. Photosystem-I-li...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00397346
更新日期:1985-10-01 00:00:00
abstract::Discs punched out of different zones of the found of Laminaria hyperborea (Gunn.) Fossl. were exposed to H(14)CO3 (-) in the light and in the dark for various lengths of time. Photosynthetic rates in young and old parts were in the same range, 12-39 μmol CO2 dm(-2) h(-1) at 4°C, whereas dark fixation was remarkably hi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388702
更新日期:1975-01-01 00:00:00
abstract::The use of complementary and alternative medicines for breast cancer patients has been increasing every year. Traditional Indian systems of medicine, such as Siddha, have been reported to benefit patients in India through herbal interventions for cancer. One such herbal medicine is Semecarpus Lehyam (SL), and this stu...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1405-4
更新日期:2005-04-01 00:00:00
abstract::The microtubular cytoskeleton has been studied during development of the zygote, proembryo and free-nuclear endosperm inA. thaliana using immunofluorescence localization of tubulin in enzymatically isolated material. Abundant micro tubules (MTs) are found throughout proembryogenesis. Microtubules in the coenocytic end...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF01102418
更新日期:1991-06-01 00:00:00
abstract::The dynamics of microtubule (MT) disassembly and reassembly were studied in the green alga Ernodesmis verticillata, using indirect immunofluorescent localization of tubulin. This alga possesses two distinct MT arrays: highly-ordered, longitudinally-oriented cortical MTs, and shorter perinuclear MTs radiating from nucl...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00202952
更新日期:1991-11-01 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::The carpel- and stamen-specific AtAGIP promoter derived from the Arabidopsis AGAMOUS (AG) second intron/enhancer is ideal for engineering complete sterility but it is highly host-specific. To ascertain whether a chimeric promoter with similar tissue specificity can be created for species other than Arabidopsis, we iso...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-010-1120-2
更新日期:2010-04-01 00:00:00
abstract::This study investigates mechanisms of multiple resistance to glyphosate, acetyl-coenzyme A carboxylase (ACCase) and acetolactate synthase (ALS)-inhibiting herbicides in two Lolium rigidum populations from Australia. When treated with glyphosate, susceptible (S) plants accumulated 4- to 6-fold more shikimic acid than r...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-009-0981-8
更新日期:2009-09-01 00:00:00
abstract::Pale and green leaves of Kalanchoe fedtschenkoi var. variegata were inoculated with Agrobacterium tumefaciens. Six weeks later the chlorophyll contents of the leaves and their tumors were investigated. The tumor tissues possess very similar concentrations of chlorophylls and a low number of chloroplasts per cell. Ther...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385563
更新日期:1970-03-01 00:00:00
abstract::Exogenous gibberellic acid, A3 (GA3) inhibits phytochrome mediated betacyanin synthesis in seedlings of Amaranthus caudatus. The growth retardants, β-chloroethyl-trimethylammonium chloride (CCC), 'isopropyl-4'-(triethylammonium chloride)-5'-methylphenyl piperidine carboxylate (AMO 1618) and tributyl-2,4,-dichlorobenzy...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00380717
更新日期:1975-01-01 00:00:00
abstract::Cotton fiber is an extremely long plant cell. Fiber elongation is a complex process and the genes that are crucial for elongation are largely unknown. We previously cloned a cDNA encoding an isoform of cotton profilin and found that the gene (designated GhPFN1) was preferentially expressed in cotton fibers. In the pre...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-005-0005-2
更新日期:2005-11-01 00:00:00
abstract::Physiological data from extreme habitat organisms during stresses are vital information for comprehending their survival. The intertidal seaweeds are exposed to a combination of environmental stresses, the most influential one being regular dehydration and re-hydration. Porphyra katadai var. hemiphylla is a unique int...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-008-0874-2
更新日期:2009-03-01 00:00:00
abstract::An acidic (Fs) and a nearly neutral (Fn) protein fraction were extracted from the chromatin of calf thymus and pea seedlings. Both fractions are able to combine with protein-free DNA to form a complex, which, however, has a lower thermal stability than a DNA-histone complex. Fs and Fn inhibit root initiation in a simi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00379824
更新日期:1969-06-01 00:00:00
abstract::The binding of concanavalin A (con A) to leek (Allium porrum L.) stem protoplasts has been investigated using sequential treatment with con A and haemocyanin and using con A covalently linked to ferritin. Prefixed protoplasts were evenly labelled. Unfixed protoplasts showed a clustered distribution of label. Low tempe...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388761
更新日期:1979-01-01 00:00:00
abstract::In a previous study (Melzer and O'Leary, 1987, Plant Physiol. 84, 58-60), we used isotopic methods to show that a substantial fraction of protein-bound aspartic acid in tobacco is derived from anaplerotic synthesis via phosphoenolpyruvate (PEP) carboxylase. Similar studies in soybean (Glycine max L.) and spinach (Spin...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00201058
更新日期:1991-10-01 00:00:00
abstract:MAIN CONCLUSION:Bignoniaceae species have conserved chloroplast structure, with hotspots of nucleotide diversity. Several genes are under positive selection, and can be targets for evolutionary studies. Bignoniaceae is one of the most species-rich family of woody plants in Neotropical seasonally dry forests. Here we re...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-020-03498-9
更新日期:2020-10-24 00:00:00