著者

Kaito Kotani Kandai Doi Nana Ushine Takuya Kato Tatsuo Sato Masaki Nonagase Shin-ichi Hayama

出版者

The Japan Society of Medical Entomology and Zoology

雑誌

衛生動物 (ISSN:04247086)

巻号頁・発行日

vol.73, no.4, pp.157-159, 2022-12-25 (Released:2022-12-25)

参考文献数

20

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An engorged ixodid tick was collected from a rescued short-tailed shearwater, Puffinus tenuirostris (Temminck), at Funabashi Sanbanse Seaside Park in Chiba Prefecture, Japan. Based on morphological features, we identified the specimen as Ixodes kerguelenensis (André and Colas-Belcour), which is a species known to infest seabirds in Oceania. To our knowledge, this is the first case report of I. kerguelenensis in Japan. The case of infestation to the shearwater suggests the possibility of the long-distance translocation of the tick in Oceanian region to Japan.

著者

佐藤 達男 サトウ タツオ Tatsuo Sato

雑誌

立教經濟學研究

巻号頁・発行日

vol.67, no.1, pp.107-140, 2013-07-19

著者

佐藤 達男 サトウ タツオ Tatsuo Sato

出版者

立教大学経済学研究会

雑誌

立教経済学研究 (ISSN:00355356)

巻号頁・発行日

vol.67, no.1, pp.107-140, 2013-07

著者

Tatsuo Sato Harufumi Saito Keisuke Maejima Keiko Kuba Ani Widiastuti Mioko Yoshino

出版者

The Japanese Society for Horticultural Science

雑誌

The Horticulture Journal (ISSN:21890102)

巻号頁・発行日

pp.OKD-085, (Released:2017-09-08)

被引用文献数

5

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This study aimed to investigate the preventive effect of periodic hot water spraying against powdery mildew in strawberry as an alternative to chemical application as a protection method. Young upper leaves of ‘Sachinoka’ were dipped in hot water at 50°C for 20 s. Conidia of powdery mildew were inoculated 24 h after the treatment. The occurrence and growth rates of powdery mildew were apparently lower on leaves dipped in hot water than on those left untreated. Thus, resistance against powdery mildew was thought to be successfully induced by heat shock. Change in leaf temperature was tested using a prototype of a hot water sprayer at 57 ± 2°C. The resultant rise in temperature and temperature attained varied widely across the leaves. Nonetheless, the minimum requirement of a leaf temperature of 50°C in 10 s for inducing systemic resistance against crown rot could be attained in the treated plants. In this study, weekly hot water spraying treatments were conducted in ‘Sachinoka’ in 2008 and in ‘Tochiotome’ and ‘Hitachi-hime’ in 2009. In 2008, powdery mildew occurred explosively in the non-treated plants. However, its occurrence in plants treated with hot water spraying was less than that in the controls, but more than that after chemical application. In 2009, the occurrence rate was lower than that in the non-treated group of 2008 and extremely low after hot water spray treatment and chemical protection in both the varieties. Whether the difference in the occurrence of powdery mildew in both the years was because of the difference in environmental conditions or the difference between the varieties is not known. The plant height of ‘Hitachi-hime’ tended to become short after hot water spraying; however, no serious effects were noted on the growth and yield of strawberry plants. In conclusion, heat shock treatment by using hot water spraying can be considered an alternative method to chemical protection against mild powdery mildew incidence in strawberry.

著者

Junjira Satitmunnaithum Hikaru Muroi Rina Ito Yuki Tashiro Antonius Febri Hendratmo Sayuri Tanabata Tatsuo Sato

出版者

The Japanese Society for Horticultural Science

雑誌

The Horticulture Journal (ISSN:21890102)

巻号頁・発行日

pp.UTD-380, (Released:2022-08-02)

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Postharvest blossom-end enlargement (BEE) in summer cucumber has a serious economic effect in Japan. Previous studies suggested that BEE is influenced by cultivation conditions and temperature during transportation. In this study, the relationship between postharvest BEE and growth parameters in plants under various sink–source balances created by defoliation and fruit thinning was determined using a growth analysis technique. Cucumber (Cucumis sativus L. ‘Taibo I’) seedlings were transplanted into an outdoor field at Ibaraki University in 2019, and the harvested fruits were stored in plastic bags at 27°C. The occurrence of BEE, which was scored six days after harvest, was positively correlated with the field air temperature and cumulative duration of sunshine exposure from flowering to harvesting. Furthermore, high temperatures and extended sunshine exposure reduced the time from flowering to harvesting. However, excessive defoliation reduced BEE occurrence, most likely because of the increased time from flowering to harvesting, suggesting that early fruit maturation may be one of the causes of BEE. Therefore, principal component analysis was performed to understand the relationship between growth parameters and the occurrence of BEE in cucumber. The occurrence of BEE increased when the sink–source balance was inclined towards the source. Collectively, these findings indicate that high temperatures, extended exposure to solar radiation, and large leaf area with respect to the number of fruit set increase the occurrence of BEE, with pre-harvest fruit maturity probably related to its onset.

著者

村上 弦 Tatsuo SATO Tohru TAKIGUHI

出版者

International Society of Histology and Cytology

雑誌

Archives of Histology and Cytology (ISSN:09149465)

巻号頁・発行日

vol.53, no.Supplement, pp.219-235, 1990 (Released:2011-10-26)

参考文献数

14

被引用文献数

18 22

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This article aims to clarify the topographical relationships of the bronchomediastinal collecting lymph vessels to other structures, in particular the great vessels, the trachea, the esophagus and the mediastinal pleura. Minute dissection was performed on eight cadavers with special reference to the converging collecting lymph vessels which form the bronchomediastinal trunks.On the right side, the trunks were consistently observed on both the right brachiocephalic vein and the subserous surface of the mediastinal pleura (anterior and posterior mediastinal trunks). The pathway from the right recurrent chain nodes ran laterally behind the carotid sheath and led either into the deep cervical nodes situated on the scalenus anterior or directly into the right venous angle.On the left side, the trunks showed varying courses. The nodes from which the trunks arose were constant, and classifiable into three groups: the uppermost paratracheal nodes near the recurrent chain nodes, the anterior mediastinal nodes (the left phrenic nodes) surrounding the phrenic nerve in front of and inferior to the aortic arch (the origin of the superior mediastinal trunk), and the left tracheobronchial nodes (the origin of the inferior mediastinal trunk).The large transverse superficial communicating vessel between the right and left sides was usually found in front of the trachea above the aortic arch; it was often connected to the nodes of the brachiocephalic angle. Deep communications were also found in front of the carina and behind the trachea.These findings allow the collecting vessels from the thoracic viscera to be divided into two pathways on each side: the anterior and posterior mediastinal trunks on the right side, and the superior and inferior mediastinal trunks on the left side. In addition to the four trunks, the superficial communicating vessel between the right and left sides is also drained from the superior mediastinum. The internal mammary lymph chain, which often emptied directly into the venous angle or into the deep cervical nodes, occasionally joined with the right anterior mediastinal trunk or the left superior mediastinal trunk.

著者

KIICHIRO HIGASHI MITSUO MORITA JUNICHI TAJIRI TATSUO SATO KOSHIRO OKAZAKI SUMIO ARAI

出版者

The Japan Endocrine Society

雑誌

Endocrinologia Japonica (ISSN:00137219)

巻号頁・発行日

vol.32, no.3, pp.421-426, 1985 (Released:2011-01-25)

参考文献数

13

被引用文献数

1

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In order to obtain a good separation line between patients with primary hyperparathyroidism (1°HPT) and those with non-parathyroidal hypercalcemia (NPHC), serum chloride (Cl) and phosphate (P) concentrations were analyzed. Ninety-nine per cent of the patients with 1°HPT had a Cl/P ratio greater than or equal to 33, but 29% of patients with NPHC were also included in this range. When the (Cl-90)/P ratio was used to separate into two groups, 98% of the patients with 1°HPT had a ratio greater than or equal to 5.0, and 94% of the patients with NPHC had a ratio less than 5.0. From these results, while high sensitivity was achieved both with the Cl/P and (Cl-90)/P ratios, the (Cl-90)/P ratio provided higher specificity. Therefore we concluded that the (Cl-90)/P ratio was excellent in distinguishing 1°HPT from other types of hypercalcemia.