{"title":"Cadmium Hyperaccumulator Potential of the Edible Cactus Nopalea cochenillifera","authors":"T. Horibe, Ryouta Teranobu","doi":"10.2525/ecb.60.205","DOIUrl":"https://doi.org/10.2525/ecb.60.205","url":null,"abstract":"","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48846598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Frequency Characteristics of AE Caused by Bubble Motion in Plant's Vessels","authors":"Y. Shimamoto, Tetsuya Suzuki","doi":"10.2525/ecb.60.161","DOIUrl":"https://doi.org/10.2525/ecb.60.161","url":null,"abstract":"","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47665122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Md. Mizanur Rahim Khan, Takumi Matsuyama, I. Nakamura, K. Ureshino, Takashi Arita, Masaki Iwayoshi, Y. Ogura‐Tsujita, S. Isshiki
{"title":"Production of Doubled Haploid through Anther Culture of the Male-Fertile Lines in the CMS System of Eggplant with the Cytoplasm of Solanum grandifolium","authors":"Md. Mizanur Rahim Khan, Takumi Matsuyama, I. Nakamura, K. Ureshino, Takashi Arita, Masaki Iwayoshi, Y. Ogura‐Tsujita, S. Isshiki","doi":"10.2525/ecb.60.187","DOIUrl":"https://doi.org/10.2525/ecb.60.187","url":null,"abstract":"","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49596935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dry Matter Production and Light Use Efficiency at Different Developmental Stages of Japanese Cucumber","authors":"K. Maeda, Kako Nomura, D. Ahn","doi":"10.2525/ecb.60.181","DOIUrl":"https://doi.org/10.2525/ecb.60.181","url":null,"abstract":"","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43443623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takaho Ueno, Shogo Nagano, S. Moriyuki, Taiki Hayashi, H. Fukuda
{"title":"Optimized Excess-Green Image Binarization for Accurate Estimation of Lettuce Seedling Leaf-Area in a Plant Factory","authors":"Takaho Ueno, Shogo Nagano, S. Moriyuki, Taiki Hayashi, H. Fukuda","doi":"10.2525/ecb.60.153","DOIUrl":"https://doi.org/10.2525/ecb.60.153","url":null,"abstract":"","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45221373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaito Masuda, Tomoya Ui, H. Nakashima, J. Miyasaka, K. Ohdoi
{"title":"Effects of Time Variation of Light Intensity on the Growth of the Leaf Lettuce “Greenwave”","authors":"Kaito Masuda, Tomoya Ui, H. Nakashima, J. Miyasaka, K. Ohdoi","doi":"10.2525/ecb.60.171","DOIUrl":"https://doi.org/10.2525/ecb.60.171","url":null,"abstract":"","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48481318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Eguchi, Hiroyuki Tanaka, S. Yoshida, Ken Matsuoka
{"title":"Effects of Nutrient Solution Electrical Conductivity and pH on the Productivity of the Medicinal Plant Pinellia ternata Breit.","authors":"T. Eguchi, Hiroyuki Tanaka, S. Yoshida, Ken Matsuoka","doi":"10.2525/ecb.60.149","DOIUrl":"https://doi.org/10.2525/ecb.60.149","url":null,"abstract":"The electrical conductivity (EC) and pH of nutrient solutions appear to affect the growth of some crops (e. g., Wu et al., 2004; Dewir et al., 2005; Samarakoon et al., 2006; Zhao et al., 2013; Singh et al., 2019). With regard to environmental effects, we already have shown that the medicinal plant Pinellia ternata Breit. is affected by the hydraulic conditions surrounding the corm (Eguchi et al., 2014), and the temperature surrounding the plant (Eguchi et al., 2016, 2019, 2020). In this study, we examined the effects of the nutrient conditions, EC, and pH on the yield and the quality of P. ternata.","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47879342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphological Changes Associated with Bruising in Strawberry Fruit Surface and Internal Tissues","authors":"Minori Hikawa-Endo","doi":"10.2525/ecb.60.137","DOIUrl":"https://doi.org/10.2525/ecb.60.137","url":null,"abstract":"Strawberry (Fragaria ananassa Duch.) is among the most widely consumed fruits worldwide. The soft and juicy texture of ripe strawberries is highly favored by a wide range of consumers. Despite significant improvements in packaging and transport, deterioration of strawberry fruit quality during distribution remains a major problem (Tatara et al., 1999). The fruit is subject to bruising from its own weight as well as external forces, such as contact with other fruits and packages. Fruit bruising is a serious problem, as it cannot be efficiently detected using common color machine vision systems (Nagata et al., 2006), resulting in consumer complaints and economic losses. The segregation of bruised fruits from non-bruised fruits can be both laborand time-intensive. Therefore, effective preventing fruit bruising is essential for improving economic benefits and reducing labor requirements for the distribution of strawberries. However, the precise mechanism of bruising in strawberries is poorly understood. The location and the morphological structure of the bruise in strawberries are controversial. Previous studies showed that firmness enhancement of the fruit surface by pre-cooling and cold chain processing cannot adequately prevent bruise occurrence but considerably reduces the occurrence of scratches (Ootake and Tanaka, 1988). Accordingly, internal tissues are speculated to be the primary site of bruising, whereas the skin surface is thought to be that of scratching in strawberries. Cell rupture and juice release have been observed in bruised apple (Holt and Schoorl, 1977; Ingle and Hyde, 1968), which has also been predicted in bruised strawberry fruit (Holt and Schoorl, 1982). However, the results of previous studies and precise mechanism of bruising in strawberries remain inconclusive, as most did not directly examine the skin and flesh of the bruised fruit in detail. Because the skin of strawberry fruit is very thin and fragile, it may become bruised with or without external force to the internal tissues. In addition, tensile tests showed that strawberry cells can be isolated without fracturing (Harker et al., 2000), suggesting that flesh or pith cells are less likely to rupture. It is important to directly determine whether morphological changes in the fruit skin, flesh, and pith are associated with bruising. Determining the mechanism of bruising will contribute to the development of strawberry breeding, cultivation, and post-harvest techniques. If the skin over the bruised internal tissue is not transformed, the role of skin firmness may be less important in bruising. In addition, if bruised tissue cells are not ruptured, then the robustness of tissue cells does not need to be increased further in strawberry breeding or cultivation. Another study showed that the generation of wound volatile compounds, which play an important role in plant–fungus interactions, is related to the morphological structure of fruit skin (Myung et al., 2006). This impl","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45106405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of Monochromatic Light Irradiation as Pre-rooting Treatment on Rooting of Cuttings in Spray-type Chrysanthemums","authors":"T. Kumazaki, Yuya Yamada, Yoji Fujita, Kai Li","doi":"10.2525/ecb.60.143","DOIUrl":"https://doi.org/10.2525/ecb.60.143","url":null,"abstract":"Vegetative propagation through cuttings is a common way of reproduction in chrysanthemums. There are two main ways to grow chrysanthemums commercially in Japan. One is to transplant the unrooted cuttings in a propagation bed or soil block, to root the cuttings, and to transplant rooted cuttings in the field (rooted cutting cultivation). The other is to plant the unrooted cuttings directly in the field (direct cutting cultivation). Since the process of rooting cuttings can be omitted in the direct cutting cultivation, labor time can be greatly reduced compared to rooted cutting cultivation (Shigeki et al., 2006). To produce chrysanthemums stably around the year in Japan, it is necessary to transplant them even in hot summer. It was found that rooting of chrysanthemum cuttings initiated more quickly at a temperature of 30°C, but it required over 7 days to initiate rooting (Dykeman, 1976; Ooishi et al., 1978; Takahashi et al., 1981). Especially in direct cutting cultivation in summer with high temperature and high solar irradiation, leaf wilting and rot of cuttings are frequently observed from transplanting to establishment (Sasaki et al., 1996; Nishio and Fukuda, 1998). Therefore, in direct cutting cultivation, it is necessary to root the cuttings as quickly as possible after transplanting, and to establish those. Pre-rooting treatments that promote the rooting of the cuttings had been studied to reduce the period from transplanting to establishment in direct cutting cultivation. Some studies showed the duration, temperature, and light conditions of pre-rooting treatments, as well as the concentration and soaking time of rooting promoters (Nishio and Fukuda, 1998; Yonekura et al., 1999). Nishio and Fukuda (1998) have reported that light as a pre-rooting treatment has little effect on the formation of root primordia. Meanwhile, Yamamura’s research group has improved the previous treatment conditions to a pre-rooting treatment that can be practiced by growers. Namely, the whole cutting is soaked in a 40 mg g 1 of indole-3-butyric acid (IBA) solution for 10 s and then irradiated with light at 300 lx for 24 h at 20°C for 7 d. Additionally, Yamamura et al. (2006) have developed a system that can treat under these conditions. In this system, a fluorescent lamp has been used as a light source to irradiate more than 300 lx near the shoot apices of the cuttings. However, in the previous study, the mechanism of rooting promotion by light irradiation remains to be clarified. Recently, light-emitting diodes (LEDs) have been practically developed as an alternative light source for horticultural lighting to fluorescent and high-pressure sodium lamps. LED lighting has several advantages compared to existing horticultural lighting, including the ability to reduce electrical energy consumption, the ability to produce high light levels with low radiant heat output when cooled properly, and the ability to maintain a useful light output for years without replacement (","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43896358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Pham, H. Tang, Hanh Hong Nguyen, Mitsukazu Sakata, H. Yasui, A. Yoshimura
{"title":"Effects of Nitrogen Fertilizer Application on Photosynthesis, Embryo and Endosperm Development of a Giant Embryo Rice Genotype","authors":"C. Pham, H. Tang, Hanh Hong Nguyen, Mitsukazu Sakata, H. Yasui, A. Yoshimura","doi":"10.2525/ecb.60.109","DOIUrl":"https://doi.org/10.2525/ecb.60.109","url":null,"abstract":"Rice bran oil, a valuable edible oil extracted from rice bran with a content of 15–22%, is in high demand around the world because of its various health benefits (LermaGarcia et al., 2009). Rice bran consists mainly of aleurone layer and embryo fractions. Besides a high lipid content, the embryo consists of high amount of protein and vitamins leading to breeding programs trying to increase the size of the embryo. Satoh and Omura (1981), using the method of mutant egg fertilization with N-methyl-N-nitrosourea (MNU), created rice giant embryo mutants with two to three times bigger embryo size. Several genes/quantitative trait loci (QTL) controlling for the giant embryo trait have been detected on chromosome 7 (Koh et al., 1996) and chromosome 3 (Taramino et al., 2003). Recently, some giant embryo varieties have released for cultivation to produce oil and functional food in Japan (Maeda et al., 2001; Matsushita et al., 2008; Ishii et al., 2013) and South Korea (Kim et al., 1991). In a previous report, the promising mutant line “MGE13” with the giant embryo gene Os07g0603700 originating from the high-yielding rice cultivar Mizuhochikara (Miz) was developed (Sakata et al., 2016). The mutant giant embryo had still increased size at 10 days after pollination while the original cultivar had almost developed to its maximum size in the same time period (Itoh et al., 2005). Furthermore, the larger embryo size of mutant type compared to that of the original cultivar rice was found mainly by enhanced cell expansion, but was not significantly related to a larger number of cells in the scutellum (Nagasawa et al., 2013). Also, Yang et al. (2013) discovered the relationship between giant rice embryo development and shoot apical meristem (SAM) activity which is controlled by gene ge for both embryonic and post-embryonic (10 days after pollination) growth promoting plant growth parameters such as the growth rate during the vegetative stage, longer leaves, more tillers, and an increased 1,000-grain weight. Furthermore, embryo development was observed in balance with endosperm development (An et al., 2020). The regulation of endosperm development was related to the auxin and abscisic acid signaling pathways from the embryo (Yi et al., 2016; Zheng et al., 2019), in contrast, the embryo development regulated by the apoplastic nutrient pathway including sugar flow from the endosperm which is mainly a photosynthetic product (Du et al., 2018). Higher nitrogen fertilizer applications have been shown to increase photosynthesis, dry matter accumulation, and grain yield in rice plants (Pham et al., 2003; Tang et al., 2008; Nguyen et al., 2019). Additional nitrogen fertilizer at the time of heading caused the increase of physiological parameters including photosynthesis and amino acid synthesis but reduced the cellulose content in the endosperms (Midorikawa et al., 2014) as well as was involved in chalky tissue formation, C and N metabolism, and the regulation of ribosomal pro","PeriodicalId":85505,"journal":{"name":"Seibutsu kankyo chosetsu. [Environment control in biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44124311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}