A new metabolite, trihydroxyoctadecadienoic acid, was obtained from high hydroxtatic pressure (400 MPa)-induced root (Brassica rapa) root.
　
(Prof. Tomoyuki Fujii (Tohoku Univ.))
"Trihydroxy fatty acid Isolated from B."
　　T. Fujii, ., , under submission.

The Saponin Contained in Spinach 2010.12

The feeding deterrent to Casida neblosa L. isolated from spinach, was identified as the triterpenoid saponin (hdrragenin glycoside).
　
(Prof. Kazuhiro Matsuda, Dr. Atsuhiko Nagasawa (Tohoku Univ.), Hiroyuki Furukawa)
"Different Feeding Responses to the Saponin Contained in Spinach due to Different Feeding Experiences in the Tortoise Beetle Cassida nebulosa L."
　　Atsuhiko Nagasawa*, Hiroyuki Furukawa, Hiromasa Kiyota, Kazuhiro Matsuda, The 4th Asia-Pacific Conference on Chemical Ecology (APACE) (2007).

Cyclic beta-Glucans produced by Rhizobia 2010.1

Periplasm cyclic beta-1,2-glucans play a crucial role in symbiosis as well as in hypoosmotic adaptaion for phizobia.
　
(Prof. Hisayuki Mitsui, Dr. Yasuyuki Kawaharada Tohoku Univ.))
143. "Identification of Mesorhizobium loti gene responsible for glycerophosphorylation of periplasmic cyclic beta-1,2-glucans"
　　Yasuyuki Kawaharada, Hiromasa Kiyota, Shima Eda, Kiwamu Minamisawa, Hisayuki Mitsui, FEMS Microbiol. Lett., 302(2), 131-137 (2010).

124. "Structural characterization of neutral and anionic glucans from Mesorhizobium loti"
　　Y. Kawaharada, H. Kiyota, S. Eda, K. Minamisawa, H. Mitsui, Carbohydr. Res., 343, 2422-2427 (2008).

Polyamines Metabolism in Bacteria 2011.8

(gamma-L-Glutamyl)putrescine and N1- and N8-(gamma-L-glutamyl)spermidines, possible regioisomeric products of the polyamine glutamyl transferase of bacteria such as Escherichia coli and Pseudomonas aeruginosa, were synthesized from N-Boc-protected putrescine and 1,3-propanediamine.
　
(Mr Naoki Abe, Kazuya Toho (Tohoku Univ.))
153. "Synthesis of N1- and N8-(γ-L-Glutamyl)spermidines and (γ-L-Glutamyl)putrescine"
Kazuya Toho, Naoki Abe the late Yoshifumi Ito Hiroyuki Konno, Hiromasa Kiyota, Lett. Org. Chem., 8, 1-4 (2011).

Phosphatidylethanolamine 2010.12

Synthetic studies of a glucosylated phosphatidylethanolamine probe.
(Prof. Kiyotaka Nakagawa, Aya Hashiura (Tohoku Univ.))