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Matsui K, Tamura T, Nishizawa K, Ohara-Takada A. Estimation of pollen dispersal distance in Job's tears ( Coix lacryma-jobi L.) by using red leaf sheath as a morphological marker. Breed Sci 2023; 73:408-414. [PMID: 38106506 PMCID: PMC10722094 DOI: 10.1270/jsbbs.23016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/08/2023] [Indexed: 12/19/2023]
Abstract
Job's tears (Coix lacryma-jobi L.) is grown widely in Asian countries and a crop that can fertilize with own pollen and pistils. The grains are used not only for food but also for medicinal purposes. The grain of many cultivars contains glutinous endosperm; only grains with this glutinous endosperm are suitable for use as medicine in Japan. Many wild types have non-glutinous endosperm and can easily cross with cultivar under natural environmental conditions. Because the non-glutinous endosperm trait is dominant to that of glutinous endosperm, F1 seeds produced by crosses between a cultivar and a wild type have non-glutinous endosperm. To reduce the rate of unwanted crosses, we investigated the pollen dispersal distance by using a red leaf sheath as a morphological marker. When plants were cultivated in rows 70 cm apart, the crossing rate was about 25%-35%. As the distance increased, the crossing rate decreased at a rate that could be fitted to a power approximation in fields without intervening plants and to an exponential equation in fields with intervening plants. Our data could be used as guidelines for preventing unwanted crossing with wild types when growing cultivars.
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Affiliation(s)
- Katsuhiro Matsui
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Kannondai 2-1-2 Tsukuba, Ibaraki 305-8518, Japan
- Institute of Life and Environmental Sciences, University of Tsukuba, Kannondai 2-1-2 Tsukuba, Ibaraki 305-8518, Japan
| | - Takayuki Tamura
- Center for Medicinal Plant Resources, Toyama Prefectural Institute for Pharmaceutical Research, 2732 Hirono, Kamiichi-machi, Nakaniikawa, Toyama 930-0412, Japan
| | - Keito Nishizawa
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Kannondai 2-1-2 Tsukuba, Ibaraki 305-8518, Japan
- Institute of Vegetable and Floriculture Science, NARO, 360 Kusawa, Ano-cho, Tsu, Mie 514-2392, Japan
| | - Akiko Ohara-Takada
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Kannondai 2-1-2 Tsukuba, Ibaraki 305-8518, Japan
- Research Center of Genetic Resources, NARO, Kannondai 2-1-2 Tsukuba, Ibaraki 305-8602, Japan
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2
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Suzuki Y, Miyahara T, Jinnouchi M, Miura Y, Taka H, Kaga N, Ohara-Takada A. A Comprehensive Analysis of Plasma Cytokines and Metabolites Shows an Association between Galectin-9 and Changes in Peripheral Lymphocyte Subset Percentages Following Coix Seed Consumption. Nutrients 2022; 14:nu14091696. [PMID: 35565664 PMCID: PMC9102546 DOI: 10.3390/nu14091696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 02/01/2023] Open
Abstract
We previously reported that healthy adult males who consumed coix seeds for 1 week demonstrated an increased intestinal abundance of Faecalibacterium prausnitzii and altered peripheral lymphocyte subset percentages. However, the mechanism underlining these effects has not been elucidated. Therefore, cytokines and metabolites in plasma obtained in this study are comprehensively analyzed. A total of 56 cytokines and 52 metabolites in the plasma are quantified. Among them, 14 cytokines and 9 metabolites show significant changes in their levels following coix seed consumption. We examine the relationship between these changes and those in peripheral lymphocyte subset percentages and intestinal abundance of F. prausnitzii, which is also considerably altered following coix seed consumption. The galectin-9 concentration considerably decreased after coix seed consumption, and these changes correlate with those in cytotoxic T cells and pan T cells. Therefore, galectin-9 is possibly involved in the changes in peripheral lymphocyte subset percentages induced by coix seed consumption.
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Affiliation(s)
- Yoshio Suzuki
- Graduate School of Health and Sports Science, Juntendo University, Inzai 270-1695, Japan; (T.M.); (M.J.)
- Correspondence:
| | - Taisei Miyahara
- Graduate School of Health and Sports Science, Juntendo University, Inzai 270-1695, Japan; (T.M.); (M.J.)
| | - Minami Jinnouchi
- Graduate School of Health and Sports Science, Juntendo University, Inzai 270-1695, Japan; (T.M.); (M.J.)
| | - Yoshiki Miura
- Laboratory of Proteomics and Biomolecular Science, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.M.); (H.T.); (N.K.)
| | - Hikari Taka
- Laboratory of Proteomics and Biomolecular Science, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.M.); (H.T.); (N.K.)
| | - Naoko Kaga
- Laboratory of Proteomics and Biomolecular Science, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.M.); (H.T.); (N.K.)
| | - Akiko Ohara-Takada
- Research Center of Genetic Resources, National Agriculture and Food Research Organization, Tsukuba 305-8602, Japan;
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3
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Katayama K, Nishinaka M, Nakamura Y, Kuranouchi T, Ohara-Takada A, Fujita K, Kitahara K. New Sweetpotato Lines have High Amylose and Resistant Starch Contents. STARCH-STARKE 2018. [DOI: 10.1002/star.201800180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kenji Katayama
- Field Crop Research Division, Institute of Crop Science, National Agriculture and Food Research Organization; 2-1-2, Kannondai, Tsukuba Ibaraki 305-8518 Japan
| | - Mio Nishinaka
- Field Crop Research Division, Institute of Crop Science, National Agriculture and Food Research Organization; 2-1-2, Kannondai, Tsukuba Ibaraki 305-8518 Japan
| | - Yoshiyuki Nakamura
- Field Crop Research Division, Institute of Crop Science, National Agriculture and Food Research Organization; 2-1-2, Kannondai, Tsukuba Ibaraki 305-8518 Japan
| | - Toshikazu Kuranouchi
- Field Crop Research Division, Institute of Crop Science, National Agriculture and Food Research Organization; 2-1-2, Kannondai, Tsukuba Ibaraki 305-8518 Japan
| | - Akiko Ohara-Takada
- Field Crop Research Division, Institute of Crop Science, National Agriculture and Food Research Organization; 2-1-2, Kannondai, Tsukuba Ibaraki 305-8518 Japan
| | - Kiyotaka Fujita
- Faculty of Agriculture, Kagoshima University; Kagoshima 890-0065 Japan
| | - Kanefumi Kitahara
- Faculty of Agriculture, Kagoshima University; Kagoshima 890-0065 Japan
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Katayama K, Tamiya S, Sakai T, Kai Y, Ohara-Takada A, Kuranouchi T, Yoshinaga M. Inheritance of low pasting temperature in sweetpotato starch and the dosage effect of wild-type alleles. Breed Sci 2015; 65:352-6. [PMID: 26366119 PMCID: PMC4542937 DOI: 10.1270/jsbbs.65.352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 06/23/2015] [Indexed: 05/23/2023]
Abstract
Sweetpotato (Ipomoea batatas (L.) Lam.), which is an outcrossing hexaploid, is one of the most important starch-producing crops in the world. During the last decade, new sweetpotato cultivars, e.g. 'Quick Sweet', which have approximately 20°C lower pasting temperature, slower retrogradation and higher digestibility of raw starch than ordinary cultivars, have been developed in Japan. Genetic analysis of these variants with low pasting temperature starch was conducted in this study. Using 8 variants and 15 normal clones, 26 families were generated. The results from analyzing these progenies suggested that this trait is a qualitative character controlled by one recessive allele (designated spt), which is inherited in a hexasomic manner. A dosage effect of the wild-type Spt allele was found for starch pasting temperature, although the effect was not linear. These results will aid breeders to develop sweetpotato cultivars with a range of starch pasting temperatures.
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Affiliation(s)
- Kenji Katayama
- NARO Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- NARO Kyushu Okinawa Agricultural Research Center,
6651-2 Yokoichi, Miyakonojo, Miyazaki 885-0091,
Japan
| | - Seiji Tamiya
- NARO Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- NARO Hokkaido Agricultural Research Center,
9-4 Shinseiminami, Memuro, Kasai, Hokkaido 082-0071,
Japan
| | - Tetsufumi Sakai
- NARO Kyushu Okinawa Agricultural Research Center,
6651-2 Yokoichi, Miyakonojo, Miyazaki 885-0091,
Japan
| | - Yumi Kai
- NARO Kyushu Okinawa Agricultural Research Center,
6651-2 Yokoichi, Miyakonojo, Miyazaki 885-0091,
Japan
| | - Akiko Ohara-Takada
- NARO Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- Headquarters, National Agriculture and Food Research Organization (NARO),
3-1-1 Kannondai, Tsukuba, Ibaraki 305-8517,
Japan
| | - Toshikazu Kuranouchi
- NARO Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masaru Yoshinaga
- NARO Kyushu Okinawa Agricultural Research Center,
6651-2 Yokoichi, Miyakonojo, Miyazaki 885-0091,
Japan
- Headquarters, National Agriculture and Food Research Organization (NARO),
3-1-1 Kannondai, Tsukuba, Ibaraki 305-8517,
Japan
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Nakamura Y, Ohara-Takada A, Kuranouchi T, Katayama K. Disintegration of Steamed Root Tissues of Sweet Potato and its Relation to Texture and the Contents of Starch, Calcium and Pectic Substances. J JPN SOC FOOD SCI 2015. [DOI: 10.3136/nskkk.62.555] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ohara-Takada A, Matsuura-Endo C, Chuda Y, Ono H, Yada H, Yoshida M, Kobayashi A, Tsuda S, Takigawa S, Noda T, Yamauchi H, Mori M. Change in Content of Sugars and Free Amino Acids in Potato Tubers under Short-Term Storage at Low Temperature and the Effect on Acrylamide Level after Frying. Biosci Biotechnol Biochem 2014; 69:1232-8. [PMID: 16041124 DOI: 10.1271/bbb.69.1232] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Changes in the sugar and amino acid contents of potato tubers during short-term storage and the effect on the acrylamide level in chips after frying were investigated. The acrylamide content in chips began to increase after 3 days of storage at 2 degrees C in response to the increase of glucose and fructose contents in the tubers. There was strong correlation between the reducing sugar content and acrylamide level, R(2)=0.873 for fructose and R(2)=0.836 for glucose. The sucrose content had less correlation with the acrylamide content because of its decrease after 4 weeks of storage at 2 degrees C, while the reducing sugar in potato tubers and the acrylamide in chips continued to increase. The contents of the four amino acids, i.e., asparatic acid, asparagine, glutamic acid and glutamine, showed no significant correlation with the acrylamide level. These results suggest that the content of reducing sugars in potato tubers determined the degree of acrylamide formation in chips. The chip color, as evaluated by L* (lightness), was correlated well with the acrylamide content.
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Affiliation(s)
- Akiko Ohara-Takada
- Department of Upland Agriculture, National Agricultural Research Center for Hokkaido Region, Memuro, Hokkaido 082-0071, Japan.
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Nakamura Y, Kuranouchi T, Ohara-Takada A, Katayama K. The Effects of β-Amylase Activity and Starch Pasting Temperature on Maltose Generation in Steamed Storage Roots of Sweet Potato. J JPN SOC FOOD SCI 2014. [DOI: 10.3136/nskkk.61.577] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Nakamura Y, Ohara-Takada A, Kuranouchi T, Masuda R, Katayama K. Mechanism for Maltose Generation by Heating in the Storage Roots of Sweet Potato Cultivar ^|^ldquo;Quick Sweet^|^rdquo; Containing Starch with a Low Pasting Temperature. J JPN SOC FOOD SCI 2014. [DOI: 10.3136/nskkk.61.62] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Nakamura Y, Kuranouchi T, Ohara-Takada A, Ishida N, Koda I, Iwasawa N, Matsuda T, Kumagai T. Cell Structure, Water Status and Starch Properties in Tuberous Root Tissue in Relation to the Texture of Steamed Sweetpotato (Ipomoea batatas (L.) Lam). ACTA ACUST UNITED AC 2010. [DOI: 10.1626/jcs.79.284] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Matsuura-Endo C, Ohara-Takada A, Chuda Y, Ono H, Yada H, Yoshida M, Kobayashi A, Tsuda S, Takigawa S, Noda T, Yamauchi H, Mori M. Effects of storage temperature on the contents of sugars and free amino acids in tubers from different potato cultivars and acrylamide in chips. Biosci Biotechnol Biochem 2006; 70:1173-80. [PMID: 16717419 DOI: 10.1271/bbb.70.1173] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
To clarify the effects of storage temperature on potato components and acrylamide in chips, tubers from five cultivars were stored at various temperatures (2, 6, 8, 10, and 18 degrees C) for 18 weeks, and the contents of sugars, free amino acids in tubers, and acrylamide in chips after frying were analyzed. At temperatures lower than 8 degrees C, the contents of reducing sugars increased markedly in all cultivars, with similar increases in the acrylamide level and dark brown chip color. Free amino acids showed little change at the storage temperatures tested and varied within certain ranges characteristic of each cultivar. The contents of reducing sugars correlated well with the acrylamide level when the fructose/asparagine molar ratio in the tubers was <2. When the fructose/asparagine ratio was >2 by low-temperature storage, the asparagine content, rather than the reducing sugar content, was found to be the limiting factor for acrylamide formation.
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Affiliation(s)
- Chie Matsuura-Endo
- Department of Upland Agriculture, National Agricultural Research Center for Hokkaido Region, Saitama, Japan.
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Oda Y, Saito K, Ohara-Takada A, Mori M. Hydrolysis of the potato glycoalkaloid alpha-chaconine by filamentous fungi. J Biosci Bioeng 2005; 94:321-5. [PMID: 16233310 DOI: 10.1263/jbb.94.321] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2002] [Accepted: 07/16/2002] [Indexed: 11/17/2022]
Abstract
Three strains of filamentous fungi have been isolated from potato sprouts to obtain an enzyme degrading the glycoalkaloids. All of the strains hydrolyzed alpha-chaconine and not alpha-solanine when grown on the sprouts. From strain HP341, identified as Plectosphaerella cucumerina, the enzyme hydrolyzing alpha-chaconine was purified on columns of DEAE-Toyopearl and Phenyl-Toyopearl. The partially purified enzyme hydrolyzed alpha-chaconine to beta1-chaconine but not to beta2- or gamma-chaconine, suggesting that the enzyme is a rhamnosidase specific for the hydrolysis of the rhamnose (C1-C4) glucose linkage in alpha-chaconine. Conversion of alpha-chaconine to beta1-chaconine may be the first step of detoxification for filamentous fungi to grow on potato sprouts that accumulated antifungal alpha-chaconine.
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Affiliation(s)
- Yuji Oda
- Department of Upland Agriculture Research, National Agricultural Research Center for Hokkaido Region, Memuro, Kasai, Hokkaido 082-0071, Japan.
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Chuda Y, Ono H, Yada H, Ohara-Takada A, Matsuura-Endo C, Mori M. Effects of physiological changes in potato tubers (Solanum tuberosum L.) after low temperature storage on the level of acrylamide formed in potato chips. Biosci Biotechnol Biochem 2003; 67:1188-90. [PMID: 12834309 DOI: 10.1271/bbb.67.1188] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Acrylamide in potato chips made from tubers stored at 2 or 20 degrees C for two weeks after harvest was analyzed by GC-MS. The acrylamide level in the former chips was higher than ten times of that in the latter, which was highly correlated with both glucose and fructose levels in the tubers.
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Affiliation(s)
- Yoshihiro Chuda
- Center for Food Quality, Labeling and Consumer Services, 2-1 Shintoshin, Chuo-ku, Saitama 330-9731, Japan
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