64 results match your criteria komatsuna


Estimation of komatsuna freshness using visible and near-infrared spectroscopy based on the interpretation of NMR metabolomics analysis.

Food Chem 2021 Dec 16;364:130381. Epub 2021 Jun 16.

Food Research Institute, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki 305-8642, Japan. Electronic address:

The objective of this study was to explore the potentiality and mechanism of visible and near-infrared (Vis-NIR) spectroscopy in estimating the freshness of komatsuna. We monitored the cumulative CO production of komatsuna stored under different conditions as a freshness indicator and measured the Vis-NIR spectra of komatsuna as the predictor. Using the informative wavelengths (IW) selected using the stepwise selectivity ratio method, we constructed an accurate freshness prediction model through PLSR analysis. Read More

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December 2021

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

Development of a New DNA Marker for Fusarium Yellows Resistance in Vegetables.

Plants (Basel) 2021 May 27;10(6). Epub 2021 May 27.

Graduate School of Agricultural Science, Kobe University, Rokkodai, Nada-ku, Kobe 657-8501, Japan.

In vegetables of L., f. sp. Read More

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Ontogenetic Variation in the Mineral, Phytochemical and Yield Attributes of Brassicaceous Microgreens.

Foods 2021 May 10;10(5). Epub 2021 May 10.

Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy.

Microgreens constitute novel gastronomic ingredients that combine visual, kinesthetic and bioactive qualities. The definition of the optimal developmental stage for harvesting microgreens remains fluid. Their superior phytochemical content against mature leaves underpins the current hypothesis of significant changes in compositional profile during the brief interval of ontogeny from the appearance of the first (S1) to the second true leaf (S2). Read More

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Structural features conserved in subclass of type II arabinogalactan.

Plant Biotechnol (Tokyo) 2020 Dec;37(4):459-463

Division of Life Science, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan.

Arabinogalactan-proteins (AGPs) are extracellular proteoglycans, which are presumed to participate in the regulation of cell shape, thus contributing to the excellent mechanical properties of plants. AGPs consist of a hydroxyproline-rich core-protein and large arabinogalactan (AG) sugar chains, called type II AGs. These AGs have a β-1,3-galactan backbone and β-1,6-galactan side chains, to which other sugars are attached. Read More

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December 2020

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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Effect of Prohydrojasmon on the Growth of Eggplant and Komatsuna.

Plants (Basel) 2020 Oct 15;9(10). Epub 2020 Oct 15.

Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba 305-8572, Japan.

Prohydrojasmon (PDJ) can improve the polyphenol and anthocyanin content and antioxidant activity of some crop plants, but it also shows a suppressive effect on the plant growth. This study aimed to investigate the inhibitory effect of PDJ on the growth of two crop plants: komatsuna ( var. ) and eggplant (). Read More

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October 2020

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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Evaluation of growth and nutritional value of Brassica microgreens grown under red, blue and green LEDs combinations.

Physiol Plant 2020 Aug 12;169(4):625-638. Epub 2020 Mar 12.

Agricultural Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.

Microgreens are rich functional crops with valuable nutritional elements that have health benefits when used as food supplements. Growth characterization, nutritional composition profile of 21 varieties representing five species of the Brassica genus as microgreens were assessed under light-emitting diodes (LEDs) conditions. Microgreens were grown under four different LEDs ratios (%); red:blue 80:20 and 20:80 (R :B and R :B ), or red:green:blue 70:10:20 and 20:10:70 (R :G :B and R :G :B ). Read More

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Effect of prohydrojasmon on total phenolic content, anthocyanin accumulation and antioxidant activity in komatsuna and lettuce.

Biosci Biotechnol Biochem 2020 Jan 4;84(1):178-186. Epub 2019 Oct 4.

Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Japan.

Prohydrojasmon has been reported to improve the quality of crops. However, most previous studies have investigated its application on fruits. Here, we evaluated the effect of prohydrojasmon on the growth and total phenolic content, anthocyanin content, and antioxidant activity in komatsuna ( var. Read More

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January 2020

Effects of micro wet milling on bioaccessibility of phosphatidic acid and lysophosphatidic acid in komatsuna during in vitro digestion.

Food Res Int 2019 07 11;121:926-932. Epub 2019 Jan 11.

Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8572, Japan. Electronic address:

Foods rich in phosphatidic acid (PA) can ameliorate stomach ulcers in mice by hydrolysis of PA to lysophosphatidic acid (LPA). In this study, PA-rich komatsuna was produced using the micro wet milling (MWM) system, which can mill food products into micrometer-scale without causing detrimental factors such as frictional heat. To evaluate the efficiency of the MWM system in increasing PA and forming LPA, the availability of PA in the MWM komatsuna to hydrolyze into LPA under in vitro simulated gastrointestinal (GI) digestion conditions were investigated. Read More

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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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Parasitoid wasps' exposure to host-infested plant volatiles affects their olfactory cognition of host-infested plants.

Anim Cogn 2018 01 25;21(1):79-86. Epub 2017 Oct 25.

Center for Ecological Research, Kyoto University, 2-509-3 Hirano, Otsu, Shiga, 520-2113, Japan.

Using Cotesia vestalis, a parasitoid wasp of diamondback moth larvae and three crucifer plant species (cabbage, komatsuna, and Japanese radish), we examined the effects of exposure to host-infested plant volatiles from one plant species on a newly emerged wasp's subsequent olfactory cognition of host-infested plant volatiles from the same or different plant species. The preference of C. vestalis between infested and uninfested plant volatiles was tested in a choice chamber. Read More

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January 2018

Novel multifunctional plant growth-promoting bacteria in co-compost of palm oil industry waste.

J Biosci Bioeng 2017 Nov 20;124(5):506-513. Epub 2017 Jul 20.

Laboratory of Soil and Environmental Microbiology, Graduate School of Bioresource and Bioenvironmental Sciences, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; Laboratory of Microbial Environmental Protection, Tropical Microbiology Unit, Center for International Education and Research of Agriculture, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.

Previously, a unique co-compost produced by composting empty fruit bunch with anaerobic sludge from palm oil mill effluent, which contributed to establishing a zero-emission industry in Malaysia. Little was known about the bacterial functions during the composting process and fertilization capacity of this co-compost. We isolated 100 strains from the co-compost on 7 types of enumeration media and screened 25 strains using in vitro tests for 12 traits, grouping them according to three functions: plant growth promoting (fixation of nitrogen; solubilization of phosphorus, potassium, and silicate; production of 3-indoleacetic acid, ammonia, and siderophore), biocontrolling (production of chitinase and anti-Ganoderma activity), and composting (degradation of lignin, xylan, and cellulose). Read More

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November 2017

Population Structure and Phylogenetic Relationships in a Diverse Panel of L.

Front Plant Sci 2017 13;8:321. Epub 2017 Mar 13.

Plant Genetic Resources Unit, United States Department of Agriculture-Agricultural Research Service Geneva, NY, USA.

The crop species L. has significant economic importance around the world. However, the global distribution and complex evolutionary history of the species has made investigating its genetic population structure difficult. 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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Simultaneous production of l-lactic acid with high optical activity and a soil amendment with food waste that demonstrates plant growth promoting activity.

J Biosci Bioeng 2016 Jul 23;122(1):105-10. Epub 2016 Jan 23.

Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; Laboratory of Microbial Environmental Protection, Tropical Microbiology Unit, Center for International Education and Research of Agriculture, Faculty of Agriculture, Kyushu University, Fukuoka, Japan. Electronic address:

A unique method to produce highly optically-active l-lactic acid and soil amendments that promote plant growth from food waste was proposed. Three Bacillus strains Bacillus subtilis KBKU21, B. subtilis N3-9 and Bacillus coagulans T27, were used. Read More

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Growth and (137)Cs uptake of four Brassica species influenced by inoculation with a plant growth-promoting rhizobacterium Bacillus pumilus in three contaminated farmlands in Fukushima prefecture, Japan.

Sci Total Environ 2015 Jul 2;521-522:261-9. Epub 2015 Apr 2.

Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan. Electronic address:

The effectiveness of the plant growth-promoting rhizobacterium Bacillus pumilus regarding growth promotion and radiocesium ((137)Cs) uptake was evaluated in four Brassica species grown on different (137)Cs contaminated farmlands at Fukushima prefecture in Japan from June to August 2012. B. pumilus inoculation did not enhance growth in any of the plants, although it resulted in a significant increase of (137)Cs concentration and higher (137)Cs transfer from the soil to plants. Read More

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Transfer of radiocesium to four cruciferous vegetables as influenced by organic amendment under different field conditions in Fukushima Prefecture.

J Environ Radioact 2015 Feb 5;140:148-55. Epub 2014 Dec 5.

Institute of Agriculture, Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan. Electronic address:

Soil-to-plant transfer of radiocesium ((137)Cs) in four cruciferous vegetables as influenced by cattle manure-based compost amendment was investigated. Komatsuna, mustard, radish and turnip were cultivated in three different (137)Cs-contaminated fields at Nihonmatsu City in Fukushima Prefecture from June to August 2012. Results revealed that organic compost amendments stimulated plant biomass production and tended to induce higher (137)Cs concentration in the cruciferous vegetables in most cases. Read More

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February 2015

Evaluation of the possibility to use the plant-microbe interaction to stimulate radioactive 137Cs accumulation by plants in a contaminated farm field in Fukushima, Japan.

J Plant Res 2015 Jan 15;128(1):147-59. Epub 2014 Nov 15.

Department of Biological Production Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-chou, Fuchu, Tokyo, 183-8509, Japan.

Field experiments in a contaminated farmland in Nihonmatsu city, Fukushima were conducted to assess the effectiveness of the plant-microbe interaction on removal of radiocesium. Before plowing, 93.3% of radiocesium was found in the top 5 cm layer (5,718 Bq kg DW(-1)). Read More

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January 2015

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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Stable cesium uptake and accumulation capacities of five plant species as influenced by bacterial inoculation and cesium distribution in the soil.

J Plant Res 2014 Sep 8;127(5):585-97. Epub 2014 Jul 8.

Department of Biological Production Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-chou, Fuchu, Tokyo, 183-8509, Japan.

The effects of inoculation with Bacillus and Azospirillum strains on growth and cesium accumulation of five plant species, Komatsuna, Amaranth, sorghum, common millet and buckwheat, grown on cesium-spiked soil were assessed for potential use in cesium remediation. Pot experiments were performed using "artificially" Cs-contaminated soil. Three treatments were applied based on Cs location in the soil. Read More

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September 2014

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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Parasitic wasp females are attracted to blends of host-induced plant volatiles: do qualitative and quantitative differences in the blend matter?

F1000Res 2013 21;2:57. Epub 2013 Feb 21.

Center for Ecological Research, Kyoto University, Otsu, Shiga, 520-2113, Japan.

Naïve Cotesia vestalis wasps, parasitoids of diamondback moth (DBM) larvae, are attracted to a synthetic blend (Blend A) of host-induced plant volatiles composed of sabinene, n-heptanal, α-pinene, and ( Z)-3-hexenyl acetate, in a ratio of 1.8:1.3:2. Read More

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February 2014

Protective effects of plant seed extracts against amyloid β-induced neurotoxicity in cultured hippocampal neurons.

J Pharm Bioallied Sci 2013 Apr;5(2):141-7

Laboratory on Ageing and Health Management, School of Nursing and Health, Aichi Prefectural University, Tohgoku, Kamishidami, Moriyama, Nagoya, Japan.

Aim: Alzheimer's disease (AD) is characterized by large deposits of amyloid β (Aβ) peptide. Aβ is known to increase reactive oxygen species (ROS) production in neurons, leading to cell death. In this study, we screened 15 plant seeds' aqueous extracts (PSAE) for inhibitory effects on Aβ (25-35)-induced cell death using hippocampus neurons (HIPN). Read More

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