著者
畑 直樹 桝田 正治 小林 昭雄 村中 俊哉 岡澤 敦司 村上 賢治
出版者
日本生物環境工学会
雑誌
植物環境工学 (ISSN:18802028)
巻号頁・発行日
vol.23, no.3, pp.93-100, 2011-09-01 (Released:2011-09-01)
参考文献数
63
被引用文献数
1 2

Altered growth habits and leaf injuries occurring under continuous light are comprehensively reviewed for Solanaceae and Cucurbitaceae crops. Continuous light can accelerate growth by providing a high daily light integral, but many species and cultivars develop leaf injuries and abnormal growth. Other environmental factors may alter responses to continuous light.
著者
秋山 遼太 中安 大 梅基 直行 村中 俊哉 水谷 正治
出版者
一般社団法人植物化学調節学会
雑誌
植物の生長調節 (ISSN:13465406)
巻号頁・発行日
vol.52, no.2, pp.92-98, 2017

<p>Steroidal glycoalkaloids (SGAs) are toxic specialized metabolites that are found in Solanaceae. Potato (<i>Solanum tuberosum</i>) contains the SGAs α-solanine and α-chaconine, which are biosynthesized from cholesterol. Several biosynthetic genes including <i>SSR2</i> and two cytochrome P450 genes (<i>CYP72A188</i> and <i>CYP72A208</i>) have been identified, and the transgenic potato plants silencing these biosynthetic genes showed SGA-reduced phenotypes. Here we summarize our recent results and strategy towards metabolic engineering of potato accumulating pharmaceutically useful compounds by genome editing. <i>CYP88B1</i>, which is involved in a later step of the SGA biosynthetic pathway with unknown catalytic function, is co-ordinately expressed with the SGA biosynthetic genes. We applied CRISPR/Cas9 system to knockout potato <i>CYP88B1</i>. The <i>CYP88B1</i>-knockout potatoes showed no accumulation of SGAs, and furthermore the corresponding amounts of steroidal saponins were accumulated in the knockout potatoes.</p>
著者
關 光 Soo Yeon Chung 村中 俊哉
出版者
公益社団法人 日本薬学会
雑誌
ファルマシア (ISSN:00148601)
巻号頁・発行日
vol.57, no.8, pp.710-714, 2021 (Released:2021-08-01)
参考文献数
16

グリチルリチンは生薬「甘草」に含まれる主な有効成分であり,抗炎症,肝庇護作用など多様な薬理作用を持つトリテルペノイド配糖体である.グリチルリチンはまた,砂糖の150倍以上の甘さを持つことから天然甘味料としても使用される.筆者らは最近,グリチルリチン生合成経路において唯一未同定となっていた糖転移酵素を同定し,本遺伝子を導入した組換え酵母細胞内でグリチルリチン生合成経路を再構築することに成功した.
著者
秋山 遼太 中安 大 梅基 直行 村中 俊哉 水谷 正治
出版者
一般社団法人植物化学調節学会
雑誌
植物の生長調節 (ISSN:13465406)
巻号頁・発行日
vol.52, no.2, pp.92-98, 2017 (Released:2018-01-12)
参考文献数
33

Steroidal glycoalkaloids (SGAs) are toxic specialized metabolites that are found in Solanaceae. Potato (Solanum tuberosum) contains the SGAs α-solanine and α-chaconine, which are biosynthesized from cholesterol. Several biosynthetic genes including SSR2 and two cytochrome P450 genes (CYP72A188 and CYP72A208) have been identified, and the transgenic potato plants silencing these biosynthetic genes showed SGA-reduced phenotypes. Here we summarize our recent results and strategy towards metabolic engineering of potato accumulating pharmaceutically useful compounds by genome editing. CYP88B1, which is involved in a later step of the SGA biosynthetic pathway with unknown catalytic function, is co-ordinately expressed with the SGA biosynthetic genes. We applied CRISPR/Cas9 system to knockout potato CYP88B1. The CYP88B1-knockout potatoes showed no accumulation of SGAs, and furthermore the corresponding amounts of steroidal saponins were accumulated in the knockout potatoes.