Rhizobialide: a new stearolactone produced by Mesorhizobium sp. CCNWGX022, a rhizobial endophyte from Glycyrrhiza uralensis.
The endophytic strain Mesorhizobium sp. CCNWGX022 was isolated from licorice (Glycyrrhiza uralensis Fisch.) grown in the arid and semi-arid regions of Northwest China. The new stearic acid derived gamma-lactone 1, named rhizobialide (= (5S)-4,5-dihydro-5-(8-oxotetradecyl)furan-2(3H)-one), was isolated from the petroleum-ether extract of the fermentation broth of this strain. The structure of 1 was elucidated on the basis of spectroscopic and mass-spectrometric analysis. This is the first report of this type of compound from rhizobia.
Wei
Ge-Hong
GH
Research Center of Microbiology, College of Life Science, Northwest A&F University, Yangling Shaanxi 712100, PR China. weigehong@yahoo.com.cn
Yang
Xue-Ying
XY
Zhang
Ji-Wen
JW
Gao
Jin-Ming
JM
Ma
Yong-Qing
YQ
Fu
Yun-Yun
YY
Wang
Pang
P
D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D002681:China; D029882:Glycyrrhiza uralensis / Q000382:microbiology*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification; D012231:Rhizobium / Q000737:chemistry*; D013229:Stearic Acids / Q000737:chemistry / Q000302:isolation & purification; D013559:Symbiosis
C520747:4,5-dihydro-5-(8-oxotetradecyl)furan-2(3H)-one; D007783:Lactones; D013229:Stearic Acids; C031183:stearic acid; D015107:4-Butyrolactone