Diversity in Chemical Constituents of Ligularia longihastata Collected in China.

Root constituents of Ligularia longihastata were examined for the first time. Fourteen eremophilane sesquiterpenes, including two new eremophilanes identified as 3α-isobutyroyloxy-7βH-eremophila-9,11-dien-8-one and 3β-angeloyloxy-1β,10β-epoxyfuranoeremophilan-9-one, and three eudesmanes were isolated. From samples collected in Baiyu County, Sichuan Province, furanoeremophilane derivatives were isolated, while various eremophilan-8-ones were isolated from samples collected in Kangding County, Sichuan.

Centromere targeting of alien CENH3s in Arabidopsis and tobacco cells.

The centromere is a region utilized for spindle attachment on a eukaryotic chromosome and essential for accurate chromatid segregation. In most eukaryotes, centromeres have specific DNA sequences and are capable of assembling specific proteins to form a complex called the kinetochore. Among these proteins, centromeric histone H3 (CENH3) is one of the most fundamental, since CENH3s have been found in all investigated functional centromeres and recruits other centromeric proteins.