21 results match your criteria var perviridis

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Influence of potassium-solubilizing bacteria on the growth and radiocesium phyto-transfer of Brassica rapa L. var. perviridis grown in contaminated Fukushima soils.

J Environ Radioact 2021 Oct 17;237:106682. Epub 2021 Jun 17.

Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo, 183-12 8509, Japan; The Faculty of Food and Agricultural Science, Fukushima University, Kanayagawa, Fukushima City, Fukushima, 960-1296, Japan.

The supply of K, being the chemical analog of Cs, affects the phytotransfer of radiocesium such as Cs from contaminated soils and its accumulation in plant tissues. Since K and Cs have high affinity to the same clay particle surfaces, the presence of potassium-solubilizing bacteria (KSB) could increase the availability of not only K in the rhizosphere but also of radiocesium. In this study, we obtained five KSB isolates with the highest solubilization capacities from soybean rhizosphere on modified Aleksandrov medium containing sericite as K source. Read More

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October 2021

An efficient direct screening system for microorganisms that activate plant immune responses based on plant-microbe interactions using cultured plant cells.

Sci Rep 2021 Apr 1;11(1):7396. Epub 2021 Apr 1.

Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641, Yamazaki, Noda, Chiba, 278-8510, Japan.

Microorganisms that activate plant immune responses have attracted considerable attention as potential biocontrol agents in agriculture because they could reduce agrochemical use. However, conventional methods to screen for such microorganisms using whole plants and pathogens are generally laborious and time consuming. Here, we describe a general strategy using cultured plant cells to identify microorganisms that activate plant defense responses based on plant-microbe interactions. Read More

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Establishment of a cultivation method for leaf lettuce (Lactuca sativa var. crispa) and komatsuna (Brassica rapa var. perviridis) with high zinc content for patients with zinc deficiency and evaluation of its effectiveness.

J Sci Food Agric 2021 Jun 29;101(8):3202-3207. Epub 2020 Nov 29.

Department of Biological Production, Akita Prefectural University, Akita, Japan.

Background: Insufficient intake of zinc is associated with various diseases worldwide. To overcome this problem, we aimed to establish a method for cultivating leafy vegetables with high zinc content in hydroponics without inhibiting their growth. Furthermore, we evaluated the effectiveness of the cultivated leafy vegetables with high zinc content in zinc-deficient mice. Read More

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Comparison of plant Cd accumulation from a Cd-contaminated soil amended with biochar produced from various feedstocks.

Environ Sci Pollut Res Int 2021 Mar 21;28(10):12699-12706. Epub 2020 Oct 21.

Institute for Rural Engineering, National Agricultural and Food Research Organization (NARO), 2-1-6 Kannondai, Tsukuba, Ibaraki, 305-8609, Japan.

The bioavailability of cadmium (Cd) in agricultural soils is a significant health concern due to the potential risk of human exposure via foods grown in Cd-contaminated fields. Biochar has been known to have a highly porous structure and high pH, as well as containing various functional groups; as such, it can immobilize heavy metals. Although it has found that biochar amendment in Cd-contaminated agricultural soils could be effective in reducing Cd bioavailability in previous studies, differences in plant Cd accumulation from Cd-contaminated soils amended with biochars produced from various types of biomass have not been fully discussed yet; we aimed to address this shortcoming in the present work. Read More

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Studies on the sorption behavior and plant uptake of pesticides in Japanese soils.

Authors:
Yutaka Motoki

J Pestic Sci 2020 Aug;45(3):159-165

Agricultural Chemicals Inspection Station, Food and Agricultural Materials Inspection Center, 2-772 Suzuki-cho, Kodaira, Tokyo 187-0011, Japan.

To estimate pesticide residue levels in succeeding crops based on those in soils, the relationship between pesticide concentrations in komatsuna ( var. ) and the concentrations extracted sequentially from soils using water and acetone was investigated. The concentrations of many pesticides in komatsuna shoots showed higher positive correlation with water-extractable concentrations ( ) than total-extractable concentrations in soils, so that the was available for evaluating the phytoavailability of pesticides in the soil. Read More

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Relationship between growth stage of var. and the abilities for uptake and translocation of pesticides in soil.

J Pestic Sci 2019 Feb;44(1):1-8

Institute for Agro-Environmental Sciences, NARO, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604, Japan.

The relationships between plant growth stage and pesticide-uptake ability were investigated cultivation of L. var. in soil to which was added four pesticides of relatively high log : fenobucarb, procymidone, flutolanil, and tolclofos-methyl. Read More

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February 2019

The influence of var. growth conditions on the uptake and translocation of pesticides.

J Pestic Sci 2018 Nov;43(4):248-254

Institute for Agro-Environmental Sciences, NARO, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604, Japan.

We cultivated var. in soil mixed with four pesticides (fenobucarb, procymidone, flutolanil, and tolclofos-methyl) at different temperatures, day lengths, and soil water contents. We compared plants' uptake and translocation abilities of the pesticides as affected by growth conditions. Read More

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November 2018

Release of the Flightless Strain of Harmonia axyridis (Coleoptera: Coccinellidae) Against Two Aphid Species on Komatsuna (Brassica rapa var. perviridis) in Open Fields.

J Econ Entomol 2019 02;112(1):115-118

National Agricultural Research Center for Western Region, Hiroshima, Japan.

Myzus persicae (Sulzer) (Hemiptera: Aphididae) and Lipaphis erysimi (Kaltenbach) are important pests of Brassica leafy vegetables, especially in Japan, the United States, and India. In Japan, because most of the nonheading Brassica vegetables are considered minor crops, the number of commercially available pesticides against these aphids is limited. Here, we evaluated the effect of releasing adults of a flightless strain of the multicolored Asian ladybird, Harmonia axyridis Pallas, on these aphid species on a nonheading Brassica cultivar in open fields. Read More

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February 2019

Environmental impacts and consumer preference for sustainably cultivated Japanese mustard spinach, komatsuna.

J Environ Manage 2019 Feb 24;231:364-369. Epub 2018 Oct 24.

Faculty of Science and Technology, Tokyo University of Science, 2641, Yamazaki, Noda, Chiba 278-8510, Japan.

Sustainable agriculture is spreading in Japan in response to growing concerns about the environmental burden of the agriculture sector, but less than 1% of the total crop area for each vegetable in Japan is grown sustainably. Environmentally friendly agricultural products are produced by using organic and low-input farming techniques; low-input farming aims to reduce chemical inputs, such as fertilizers, pesticides, and herbicides, by half. Here, we used komatsuna (Japanese mustard spinach, Brassica rapa var. Read More

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February 2019

Effects of litter feeders on the transfer of Cs to plants.

Sci Rep 2018 04 27;8(1):6691. Epub 2018 Apr 27.

The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.

The effects of the Japanese horned beetle larvae on the transfer of Cs from a contaminated leaf litter to the leaf vegetable, komatsuna (Brassica rapa var. perviridis) was studied. Feces of the larvae which were fed Cs-contaminated leaf litter were added to a potting mix in which komatsuna plants were cultivated. Read More

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Comparison of uptake, translocation and accumulation of several neonicotinoids in komatsuna (Brassica rapa var. perviridis) from contaminated soils.

Chemosphere 2018 Jun 20;200:603-611. Epub 2018 Feb 20.

Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, 50 Zhongling Street, Nanjing 210014, China; Institute of Food Quality and Safety, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China. Electronic address:

The accumulation of pesticides in vegetables may have serious effects on human health and ecosystems via food chains; therefore, it is of great importance to investigate the uptake and accumulation behaviours of pesticides in vegetable tissues. In the present study, the uptake, translocation and accumulation of five neonicotinoids, thiamethoxam (THIM), clothianidin (CLO), thiacloprid (THID), acetamiprid (ACE) and dinotefuran (DIN), in komatsuna (Brassica rapa var. perviridis, a vegetable) were investigated. Read More

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Composting of Sewage Sludge with a Simple Aeration Method and its Utilization as a Soil Fertilizer.

Environ Manage 2019 04 2;63(4):455-465. Epub 2018 Feb 2.

Department of Environmental Ecology, Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.

The objective of this study was to examine the feasibility of sewage sludge composting using a simple aeration method. Two consecutive composting trials (run A and run B) using Japanese sludge and woodchips (1:1, v/v) were conducted in cubic boxes (0.45 × 0. Read More

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Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields.

J Vis Exp 2016 07 8(113). Epub 2016 Jul 8.

Biomedical Research Institute, Seoul National University Hospital.

Electronic devices and high-voltage wires induce magnetic fields. A magnetic field of 1,300-2,500 Gauss (0.2 Tesla) was applied to Petri dishes containing seeds of Garden Balsam (Impatiens balsamina), Mizuna (Brassica rapa var. Read More

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Incorrect statistical method in parallel-groups RCT led to unsubstantiated conclusions.

Lipids Health Dis 2016 Apr 15;15:77. Epub 2016 Apr 15.

Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.

The article by Aiso et al. titled "Compared with the intake of commercial vegetable juice, the intake of fresh fruit and komatsuna (Brassica rapa L. var perviridis) juice mixture reduces serum cholesterol in middle-aged men: a randomized controlled pilot study" does not meet the expected standards of Lipids in Health and Disease. Read More

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Advanced treatment of swine wastewater using an agent synthesized from amorphous silica and hydrated lime.

Environ Technol 2014 Nov-Dec;35(21-24):2982-7. Epub 2014 Jun 23.

a National Institute of Livestock and Grassland Science , Ibaraki , Japan.

Advanced treatment using an agent synthesized from amorphous silica and hydrated lime (M-CSH-lime) was developed and applied to swine wastewater treatment. Biologically treated wastewater and M-CSH-lime (approximately 6 w/v% slurry) were fed continuously into a column-shaped reactor from its bottom. Accumulated M-CSH-lime gradually formed a bed layer. Read More

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Compared with the intake of commercial vegetable juice, the intake of fresh fruit and komatsuna (Brassica rapa L. var. perviridis) juice mixture reduces serum cholesterol in middle-aged men: a randomized controlled pilot study.

Lipids Health Dis 2014 Jun 24;13:102. Epub 2014 Jun 24.

Department of Food and Nutritional Sciences and Environmental Health Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, 422-8526, Shizuoka, Japan.

Background: Vegetables and fruits are rich in vitamins, minerals and, dietary fiber and contribute to the prevention and improvement of obesity and metabolic syndrome. However, inadequate intake of vegetable and fruit is a concern in Japan.We therefore produced a juice mixture of fresh fruit and komatsuna (Brassica rapa L. Read More

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Establishment of evaluation method to determine effects of veterinary medicinal products on manure fermentation using small-scale composting apparatus.

J Biosci Bioeng 2012 Sep 16;114(3):312-7. Epub 2012 May 16.

National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan.

To evaluate on a laboratory scale the influence of veterinary medicinal products (VMPs) excreted into feces on manure fermentation, we have developed an evaluation method that uses a small-scale composting apparatus. Each run is of approximately 3 kg scale and the operation can be conducted in an environmentally controlled laboratory. The main evaluation parameter is calorific value generated by aerobic fermentation. Read More

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September 2012

Screening of dried plant seed extracts for adiponectin production activity and tumor necrosis factor-alpha inhibitory activity on 3T3-L1 adipocytes.

Plant Foods Hum Nutr 2010 Sep;65(3):225-32

Laboratory on Ageing & Health Management, School of Nursing & Health, Aichi Prefectural University, Tohgoku, Kamishidami, Moriyama, Nagoya 463-8502, Japan.

To search for dried plant seeds with potent anti-diabetes activity, we conducted a large scale screening for inhibitory activity on tumor necrosis factor-alpha and facilitating activity on adiponectin production in vitro. These activities in 3T3-L1 adipocytes were screened from ethanol extracts of 20 kinds of dried plant seed marketed in Japan. komatsuna (Brassica rapa var. Read More

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September 2010

Response of spinach and komatsuna to biogas effluent made from source-separated kitchen garbage.

J Environ Qual 2006 Sep-Oct;35(5):1939-47. Epub 2006 Sep 13.

International Rice Research Institute, Crop, Soil, and Water Science Division, DAPO Box 7777, Metro Manila, Philippines.

Recycling of kitchen garbage is an urgent task for reducing public spending and environmental burdens by incineration and/or landfill. There is an interesting regional effort in Ogawa, Saitama prefecture, Japan, in which source-separated kitchen garbage is anaerobically fermented with a biogas plant and the resultant effluent is used as a quick-release organic fertilizer by surrounding farmers. However, scientific assessments of fertilizer values and risks in the use of the effluent were lacking. Read More

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December 2006

Regulation of Brassica rapa chloroplast proliferation in vivo and in cultured leaf disks.

Protoplasma 2003 7;222(3-4):139-48. Epub 2003 Oct 7.

Department of Biological Sciences, Graduate School of Science, University of Tokyo, Hongo, 113-0033, JP.

To understand the regulatory mechanisms of chloroplast proliferation, chloroplast replication was studied in cultured leaf disks cut from plants of 25 species. In leaf disks from Brassica rapa var. perviridis, the number of chloroplasts per cell increased remarkably in culture. Read More

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September 2004

Electron transfer reactions of cytochrome f from Brassica komatsuna with hexacyanoferrate.

J Biochem 1980 Oct;88(4):1167-76

The electron transfer reactions of membrane-bound monomeric cytochrome f from Brassica komatosuna (Brassica rapa L. var. perviridis Bailey) with hexacyanoferrate (II)-(III) have been studied as a function of pH, ionic strength and temperature. Read More

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October 1980
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