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A novel photoinitiator 2,2'-bis-(2-chlorophenyl)-4,4',5,5'-tetra-[3-(2-hydroxylmethy1-2-triethylene glycol monoethylene ether-ethane-1-oxy)-phenyl]-1,2'-biimidazole (BCTE-HABI) was synthesized from 3,3'-dimethoxy benzoin. Ultraviolet spectra, fluorescence spectra, ESR, photodilatometer, and photo-DSC measurements indicate that its photoinitiating activity for acrylate derivatives is better than 2,2'-bis-(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole (o-Cl-HABI), which is one of the most widely studied and used derivatives of HABI. POLYM. ENG. SCI., 46:474-479, 2006. © 2006 Society of Plastics Engineers, INTRODUCTION The hexaarylbiimidazoles (HABIs) are a very useful class of photoinitiators that are widely used in proofing papers, photoimaging, photoresists, etc. The dimer formed upon oxidation of 2,4,5-triarylimidazole was first [...]

The article discusses the results of a study of the synthesis of a novel hexaarylbiimidazole (HABI) with ether groups and characterization of its photoinitiation properties for acrylate derivatives. A description of the experimental setup and materials is given. The study showed that the heat of photopolymerization is directly related to the heat flow.

Fusarium wilt is a significant disease in radish, but the genetic mechanisms controlling yellows resistance (YR) are not well understood. This study aimed to identify YR-QTLs and to fine-map one of them using F 2:3 populations developed from resistant and susceptible radish parents. In this study, two high-density genetic maps each containing shared co-dominant markers and either female or male dominant markers that spanned 988.6 and 1127.5 cM with average marker densities of 1.40 and 1.53 cM, respectively, were generated using Genotyping by Random Amplicon Sequencing-Direct (GRAS-Di) technology. We identified two YR-QTLs on chromosome R2 and R7, and designated the latter as ForRs1 as the major QTL. Fine mapping narrowed down the ForRs1 locus to a 195 kb region. Among the 16 predicted genes in the delimited region, 4 genes including two receptor-like protein and -kinase genes (RLP/RLK) were identified as prime candidates for ForRs1 based on the nucleotide sequence comparisons between the parents and their predicted functions. This study is the first to use a GRAS-Di for genetic map construction of cruciferous crops and fine map the YR-QTL on the R7 chromosome of radish. These findings will provide groundbreaking insights into radish YR breeding and understanding the genetics of YR mechanism., (Copyright © 2023 by JAPANESE SOCIETY OF BREEDING.)

The genome-wide characterization of single nucleotide polymorphism (SNP) between cultivars or between inbred lines contributes to the creation of genetic markers that are important for plant breeding. Functional markers derived from polymorphisms within genes that affect phenotypic variation are especially valuable in plant breeding. Here, we report on the genome re-sequencing and analysis of the two parental inbred lines of the commercial F 1 hybrid Chinese cabbage cultivar "W77". Through the genome-wide identification and classification of the SNPs and indels present in each parental line, we identified about 1,500 putative non-functional genes in each parent. We designed cleaved amplified polymorphic sequence (CAPS) markers using specific mutations found at Eco RI restriction sites in the parental lines and confirmed their Mendelian segregation by constructing a linkage map using 96 F 2 plants derived from the F 1 hybrid cultivar, "W77". Our results and data will be a useful genomic resource for future studies of gene function and metagenomic studies in Chinese cabbage.