scholarly journals Allelopathy and Allelopathic Substances of Fossil Tree Species Metasequoia glyptostroboides

Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 83
Author(s):  
Yuki Matuda ◽  
Arihiro Iwasaki ◽  
Kiyotake Suenaga ◽  
Hisashi Kato-Noguchi
Keyword(s):  
Methanol Extract ◽  
Rhizosphere Soil ◽  
Lolium Multiflorum ◽  
Lepidium Sativum ◽  
Metasequoia Glyptostroboides ◽  
Lactuca Sativa L ◽  
Medicago Sativa L ◽  
Fallen Leaves ◽  
Cretaceous Period ◽  
Lepidium Sativum L

Metasequoia glyptostroboides Hu et W.C. Cheng is one of the oldest living conifer species, and it has remained unchanged for millions of years compared to its fossils from the Cretaceous period. The species are cultivated in the parks, gardens, and roadsides in many countries. We investigated the allelopathy and allelopathic substances in fallen leaves of M. glyptostroboides. An aqueous methanol extract of the fallen leaves inhibited the growth of cress (Lepidium sativum L.), lettuce (Lactuca sativa L.), alfalfa (Medicago sativa L.), Lolium multiflorum Lam., Phleum pretense L., and Vulpia myuros (L.) C.C.Gmel. The extract was then purified by several chromatographic steps, and two allelopathic substances were isolated and determined by spectral data to be (+)-rhododendrol and 9-epi-blumenol C. The compound inhibited the growth of cress and L. multiflorum. M. glyptostroboides is a deciduous perennial tree, and accumulation of its fallen leaves occur on the soil under the trees. Therefore, those allelopathic substances in the fallen leaves may be liberated into the rhizosphere soil during the decomposition process of fallen leaves and provide a competitive advantage for M. glyptostrob through the growth inhibition of competing plant species nearby. Therefore, M. glyptostroboides is allelopathic, and (+)-rhododendrol and 9-epi-blumenol C may be contribute to the allelopathy.

scholarly journals Garcienone, a Novel Compound Involved in Allelopathic Activity of Garcinia Xanthochymus Hook

Plants ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 301 ◽  
Author(s):  
Md. Mahfuzur Rob ◽  
Arihiro Iwasaki ◽  
Ryota Suzuki ◽  
Kiyotake Suenaga ◽  
Hisashi Kato-Noguchi
Keyword(s):  
Inhibitory Activity ◽  
Methanol Extract ◽  
Lepidium Sativum ◽  
Aqueous Methanol ◽  
Allelopathic Potential ◽  
Barnyard Grass ◽  
Garcinia Xanthochymus ◽  
Medicago Sativa L ◽  
Promising Source ◽  
Lepidium Sativum L

Plants are sources of diversified allelopathic substances that can be investigated for use in eco-friendly and efficient herbicides. An aqueous methanol extract from the leaves of Garcinia xanthochymus exhibited strong inhibitory activity against barnyard grass (Echinochloa crus-galli (L.) P. Beauv.), foxtail fescue (Vulpia myuros (L.) C.C.), alfalfa (Medicago sativa L.), and cress (Lepidium sativum L.), and appears to be a promising source of allelopathic substances. Hence, bio-activity guided purification of the extract through a series of column chromatography steps yielded a novel compound assigned as garcienone ((R, E)-5-hydroxy-5-((6S, 9S)-6-methyl-9-(prop-13-en-10-yl) tetrahydrofuran-6-yl) pent-3-en-2-one). Garcienone significantly inhibited the growth of cress at a concentration of 10 μM. The concentrations resulting in 50% growth inhibition (I50) of cress roots and shoots were 120.5 and 156.3 μM, respectively. This report is the first to isolate and identify garcienone and to determine its allelopathic potential.

scholarly journals UTILIZATION OF SEWAGE SLUDGE FROM ACID CASEIN PRODUCTION FOR SOIL FERTILIZATION

2007 ◽  
Vol 15 (3) ◽  
pp. 166-172 ◽  
Author(s):  
Eglė Zuokaitė ◽  
Davidas Ščupakas
Keyword(s):  
Sewage Sludge ◽  
Sewage Treatment ◽  
Lepidium Sativum ◽  
The European Union ◽  
Garden Cress ◽  
Vital Activity ◽  
Soil Fertilization ◽  
Sewage Treatment Plants ◽  
Lactuca Sativa L ◽  
Lepidium Sativum L

Organic biodegradable waste composes a fair part of farm and vital activity waste. The disposal of this waste in municipal waste landfills pollutes the environment and soil. Therefore, the European Union and other countries look for alternatives to manage biodegraded waste. This paper seeks to analyse the properties of sludge that forms in the sewage treatment plants of the acid casein production, examines experience in managing and applying sludge. The results of an experiment show that sewage sludge from the acid casein production is suitable as a soil fertilizer for growing lettuce (Lactuca sativa L.) and garden cress (Lepidium sativum L.). After soil was fertilized with this sludge, the germination of lettuce and garden cress as well as the biomass of experimental alimentary plants increased. A suitable ratio of soil and sludge mixture was determined (for lettuce ‐ 1:1, for garden cress ‐ 3:1). Potassium sulphate which was added to a soil‐sludge mixture improved the values of fertility parameters of alimentary plants.

scholarly journals Avaliação da aceitabilidade de vegetais no estádio microgreen por resto ingesta no lapinha Spa, município de Lapa, estado do Paraná, Brasil

2020 ◽  
Vol 9 (7) ◽  
pp. e377974272
Author(s):  
Alice Pereira Zanzini ◽  
Júlia Assunção de Castro Oliveira ◽  
Elisângela Elena Nunes Carvalho
Keyword(s):  
Brassica Oleracea ◽  
Helianthus Annuus ◽  
Beta Vulgaris ◽  
Lactuca Sativa ◽  
Lepidium Sativum ◽  
Amaranthus Caudatus ◽  
Helianthus Annuus L ◽  
Lactuca Sativa L ◽  
Brassica Oleracea L ◽  
Lepidium Sativum L

Microgreens são plantas jovens de hortaliças colhidas prematuramente que vêm ganhando popularidade na culinária convencional e gourmet devido às suas propriedades nutricionais e sensoriais. Este estudo teve como objetivo avaliar a aceitabilidade de microgreens de alface (Lactuca sativa L.), agrião-do-seco (Lepidium sativum L.), amaranto (Amaranthus caudatus L.), beterraba (Beta vulgaris L.), couve (Brassica oleracea L.) e girassol (Helianthus annuus L.) pelos hóspedes do Lapinha SPA, um estabelecimento de revigoramento da saúde física e mental localizado no município de Lapa, estado do Paraná. Para avaliar a aceitabilidade desses vegetais foi utilizado a metodologia de resto-ingesta. Os resultados obtidos mostraram que a aceitabilidade das espécies variou entre 84,84% e 96,60%, sendo considerada ótima para todas as espécies ofertadas. A análise de variância seguida pelo teste de Tukey mostrou que houve diferença estatisticamente significante no índice de aceitabilidade, sendo que as espécies mais bem aceitas em ordem decrescente, foram os microgreens de amaranto (sobra média = 2,16 g), couve (sobra-média = 5,12 g), agrião-do-seco (sobra-média = 6,40 g), alface (sobra-média = 6,60 g), beterraba (sobra-média = 6,84 g), e girassol (sobra-média = 9,76 g). Essas plantas apresentam potencial para serem incorporados à dieta de clientes de estabelecimentos SPA’s, uma vez que agregam valor nutricional e estético diferenciados aos pratos ofertados na culinária.

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.

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 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.

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