In cress roots (Lepidium sativum L.), abscisic acid prevents the development of the central cap cells into statocytes

Planta ◽  
1976 ◽  
Vol 130 (1) ◽  
pp. 89-91 ◽  
Author(s):  
Dieter Volkmann
Keyword(s):  
Abscisic Acid ◽  
Lepidium Sativum ◽  
Lepidium Sativum L

Natürliche Hemmstoffe von Keimung und Wachstum, I Ausarbeitung eines quantitativen Biotests und Anwendung auf Extrakte aus Spelzen von Avena sativa L. / Natural Inhibitors of Germination and Growth, I. Development of a Quantitative Biotest and Application upon Extracts from Husks of Avena sativa L.

1982 ◽  
Vol 37 (9) ◽  
pp. 793-801 ◽  
Author(s):  
Rudolf Karl ◽  
Wolfhart Rüdiger
Keyword(s):  
Abscisic Acid ◽  
Root Growth ◽  
Organic Acids ◽  
Avena Sativa ◽  
Inhibitory Activity ◽  
Lepidium Sativum ◽  
Carbonic Acids ◽  
Germination And Growth ◽  
Natural Inhibitors ◽  
Lepidium Sativum L

Extracts from oat husks inhibit germination of a variety of seeds including Avena sativa L., Sorghum spec., Phalleris spec., Raphanus spec., Amaranthus caudatus, Lepidium sativum L. A quantitative assay for this inhibition was developed on the basis of percentage of root growth of Avena in the presence of extracted material compared with root growth of water controls. Fractionation of the extracts revealed that about half of the total inhibitory activity was found in the fraction of free organic acids. The inhibition was not due to known inhibitors. Abscisic acid. was not found in this extract. Phenole carbonic acids were determined in the extract. Their con­centration was too low to significantly contribute to the observed inhibitory activity.

EFFECTS OF DIFFERENT AFTER-RIPENING TREATMENTS ON GERMINATION AND ENDOGENOUS GROWTH INHIBITORS IN ROSA RUGOSA

1972 ◽  
Vol 52 (6) ◽  
pp. 1049-1058 ◽  
Author(s):  
F. J. SVEJDA ◽  
P. A. POAPST
Keyword(s):  
Abscisic Acid ◽  
Effective Treatment ◽  
Endogenous Growth ◽  
Lepidium Sativum ◽  
Growth Inhibitors ◽  
Germination Inhibitors ◽  
Rosa Rugosa ◽  
Ripening Period ◽  
Retarding Effect ◽  
Lepidium Sativum L

The concentration of growth and germination inhibitors in achenes from seedlings of R. rugosa Thunberg is reduced through leaching. Leaching of achenes for 24 hr before stratification increased the germination but the effect of leaching was not always significant. The presence of inhibitors was indicated between Rf 0.3–0.4 and Rf 0.7–0.9 by the retarding effect on radicle elongation of cress seeds (Lepidium sativum L. cult Moss Curled) when extracts of achenes were developed on ascending paper chromatograms (isopropanol:ammonia:water, 10:1:1, v/v). Changed concentrations of the inhibitor between Rf 0.7 and 0.9 from different after-ripening treatments did affect the germination of the achenes but the changed concentrations of the inhibitor between Rf 0.3 and 0.4 did not. Presumably, the inhibitor between Rf 0.7 and 0.9 was abscisic acid. Warm–cold treatments promoted germination more effectively than cold treatments. The most effective treatment was 4 weeks at 20 C and 8 weeks at 4 C. Both cold and warm–cold after-ripening seemed to promote germination through a reduction of growth inhibitors. Inhibitors do not control the germination of rose achenes exclusively because: (a) leaching reduced the concentration of inhibitors but it did not induce germination without after-ripening treatments; (b) partial after-ripening for 4 weeks at 20 C also reduced the concentration of inhibitors but it did not induce germination unless it was followed by an after-ripening period of 4 C; (c) after-ripened achenes germinated in spite of inhibitors.

Toxicological effects of different-sized Co–Fe (CoFe2O4) nanoparticles on Lepidium sativum L.: towards better understanding of nanophytotoxicity

Ecotoxicology ◽  
2021 ◽  
Vol 30 (2) ◽  
pp. 277-291
Author(s):  
D. Montvydienė ◽  
A. Jagminas ◽  
Ž. Jurgelėnė ◽  
M. Kazlauskas ◽  
R. Butrimienė ◽  
...  
Keyword(s):  
Lepidium Sativum ◽  
Cofe2o4 Nanoparticles ◽  
Toxicological Effects ◽  
Lepidium Sativum L

scholarly journals Phytotoxicity of Tires Evaluated in Simulated Conditions

Environments ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 49
Author(s):  
Markéta Šourková ◽  
Dana Adamcová ◽  
Jan Winkler ◽  
Magdalena Daria Vaverková
Keyword(s):  
Higher Plants ◽  
Sinapis Alba ◽  
Lepidium Sativum ◽  
Root Growth Inhibition ◽  
Chemical Parameters ◽  
Sinapis Alba L ◽  
Test Kit ◽  
Physical And Chemical ◽  
Aqueous Leachate ◽  
Lepidium Sativum L

Illegal dumps and landfills with disposed of tires are a fact of today, which should not be neglected as they represent a great ecological burden for the environment, affect the surrounding nature and disturb the landscape. This research was focused on testing the phytotoxicity of aqueous leachates from the fractions of tires in two sets of experiments—to simulate laboratory conditions (tire leaching in distilled water) and natural conditions (tire leaching in water from a recipient) using the Phytotoxkit testing kit (kit for the establishment of inhibition/stimulation effect on the root development) and the watercress test of phytotoxicity (biological method for the assessment of leachate phytotoxicity). Plants whose seeds were selected for the test were watercress (Lepidium sativum L.) and white mustard (Sinapis alba L.). The aqueous leachate was tested for 38 weeks. During the experiment, physical and chemical parameters were measured at intervals of 14 days by the testing instrument HACH TEST KIT: electric conductivity (EC), amount of dissolved oxygen (LDO) and pH. Results of root growth inhibition (IR) on the seeds of Lepidium sativum L. and Sinapis alba L. exhibited values ranging from 11.73% to 47.74% in the tested samples. Results of germination index (GI) on the seeds of Lepidium sativum L. exhibited values below 66% in the tested samples, which indicated the leachate phytotoxicity. In spite of the fact that similar studies are tackling the acute toxicity of leachates from tires (particularly to algae, embryos and animals), this research brings complementary information in testing the acute phytotoxicity of tire leachates to higher plants.

Effects of Various Levels of Dietary Lepidium Sativum L. Seeds in Rats

1999 ◽  
Vol 27 (03n04) ◽  
pp. 397-405 ◽  
Author(s):  
S. E. I. Adam
Keyword(s):  
Growth Rate ◽  
Traditional Medicine ◽  
Total Protein ◽  
Toxicity Study ◽  
Lepidium Sativum ◽  
Albino Rats ◽  
Wistar Albino Rats ◽  
Lepidium Sativum L

A toxicity study was made on Lepidium sativum L. seeds used in Saudi traditional medicine for the treatment of various ailments. Lepidium sativum L. seed fed to Wistar albino rats at 2% (w/w) was non-toxic, Ten percent (w/w) was toxic but not fatal and 50% (w/w) of the diet for 6 weeks was lethal and caused depression in growth rate and entero-hepato-nephrotoxicity. Organ lesions accompanied by anemia and leukopenia were correlated with alterations in serum AST and ALT activities and concentrations of total protein, cholesterol, urea, and other serum constituents.

scholarly journals Genetic diversity in the Ethiopian garden cress (Lepidium sativum L.) using microsatellite markers

2018 ◽  
Vol 16 ◽  
pp. 32-40 ◽  
Author(s):  
Legesse Tadesse ◽  
Firew Mekbib ◽  
Adugna Wakjira ◽  
Zerihun Tadele
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Lepidium Sativum ◽  
Garden Cress ◽  
Lepidium Sativum L

scholarly journals Enhanced Efficiency of the Removal of Cytostatic Anthracycline Drugs Using Immobilized Mycelium of Bjerkandera adusta CCBAS 930

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6842
Author(s):  
Kamila Rybczyńska-Tkaczyk
Keyword(s):  
Superoxide Dismutase ◽  
Free Radicals ◽  
Phenolic Compounds ◽  
Glucose Oxidase ◽  
Biological Treatment ◽  
Lepidium Sativum ◽  
Bjerkandera Adusta ◽  
Anthracycline Antibiotics ◽  
Lepidium Sativum L

The aim of this study was to evaluate the bioremoval of anthracycline antibiotics (daunomycin-DNR, doxorubicin–DOX, and mitoxantrone-MTX) by immobilized mycelium of B. adusta CCBAS 930. The activity of oxidoreductases: versatile peroxidases (VP), superoxide dismutase (SOD), catalase (CAT), and glucose oxidase (GOX), and the levels of phenolic compounds (PhC) and free radicals (SOR) were determined during the biotransformation of anthracyclines by B. adusta strain CCBAS 930. Moreover, the phytotoxicity (Lepidium sativum L.), biotoxicity (MARA assay), and genotoxicity of anthracyclines were evaluated after biological treatment. After 120 h, more than 90% of anthracyclines were removed by the immobilized mycelium of B. adusta CCBAS 930. The effective biotransformation of anthracyclines was correlated with detoxification and reduced genotoxicity.

scholarly journals Acute toxicity of experimental fertilizers made of blood meal, spent coffee ground and biomass ash

2017 ◽  
Vol 34 (1) ◽  
pp. 95-102 ◽  
Author(s):  
Tomasz Ciesielczuk ◽  
Czesława Rosik-Dulewska ◽  
Joanna Poluszyńska ◽  
Irena Sławińska
Keyword(s):  
Acute Toxicity ◽  
Cucumis Sativus ◽  
Plant Species ◽  
Blood Meal ◽  
Lepidium Sativum ◽  
Toxicity Tests ◽  
Cucumis Sativus L ◽  
Spent Coffee Ground ◽  
Coffee Ground ◽  
Lepidium Sativum L

Abstract The study presents the results of research on the acute toxicity of a fertilizer formulas made of spent coffee ground (SCG) with addition of ash from low-temperature combustion of biomass or ash with an admixture of magnesium sulphate and blood meal. The experimental fertilizer formulas included also rape oil used as a plasticizer for controlling the nutrients release from the fertiliser. Mustard (Sinapis alba L.), oats (Avena sativa sp. L.), cucumber (Cucumis sativus L.) and cress (Lepidium sativum L.) were used as test plants species in the experiment. The toxicity tests were performed using a standard procedure of 72 h with the use of Phytotoxkit microbiotest and fertilizer application of 2.5; 5 and 10% (v/v). The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer. During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values. From the tested plant species, cress (Lepidium sativum L.) turned out to be the most sensitive to the applied fertilizers, the least was cucumber (Cucumis sativus L.) for which only a small inhibition of root system growth was observed. The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.

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