Parental transgenerational epigenetic inheritance related to dietary crude oil exposure in Danio rerio (open access)

Parental transgenerational epigenetic inheritance related to dietary crude oil exposure in Danio rerio

Article investigating the transgenerational inheritance from both parental lines in zebrafish. Adult zebrafish were separated into female and male groups exposed for 21 days to either a control diet or to a diet containing water accommodated fractions of crude oil. To determine the maternal and paternal influence on their offspring, the authors evaluated responses from molecular to whole organismal levels in both generations.
Date: January 22, 2020
Creator: Bautista, Naim M.; Crespel, Amélie; Crossley, Janna; Padilla, Pamela A. & Burggren, Warren W.
System: The UNT Digital Library
CaMV35S promoter – A plant biology and biotechnology workhorse in the era of synthetic biology (open access)

CaMV35S promoter – A plant biology and biotechnology workhorse in the era of synthetic biology

This review article calls for establishing the CaMV 35S promoter as a quantitative reference standard for transcription activity in plants.
Date: November 18, 2020
Creator: Amack, Stephanie C. & Antunes, Mauricio S.
System: The UNT Digital Library
Proanthocyanidin Biosynthesis—a Matter of Protection (open access)

Proanthocyanidin Biosynthesis—a Matter of Protection

Article discussing key questions and opportunities in the field of Proanthocyanidins (PA) biosynthesis.
Date: August 18, 2020
Creator: Dixon, R. A. & Sarnala, Sai
System: The UNT Digital Library
Substrate Specificity of LACCASE8 Facilitates Polymerization of Caffeyl Alcohol for C-Lignin Biosynthesis in the Seed Coat of Cleome hassleriana (open access)

Substrate Specificity of LACCASE8 Facilitates Polymerization of Caffeyl Alcohol for C-Lignin Biosynthesis in the Seed Coat of Cleome hassleriana

This article finds that the transcript profile of the laccase gene ChLAC8 parallels the accumulation of C-lignin during seed coat development. Recombinant ChLAC8 oxidizes caffeyl and sinapyl alcohols, generating their corresponding dimers or trimers in vitro, but cannot oxidize coniferyl alcohol. The authors propose a basis for this substrate preference based on molecular modeling/docking experiments. Suppression of ChLAC8 expression led to significantly reduced C-lignin content in the seed coats of transgenic Cleome plants. Feeding of 13C-caffeyl alcohol to the Arabidopsis (Arabidopsis thaliana) caffeic acid o-methyltransferase mutant resulted in no incorporation of 13C into C-lignin, but expressing ChLAC8 in this genetic background led to appearance of C-lignin with >40% label incorporation. These results indicate that ChLAC8 is required for C-lignin polymerization and determines lignin composition when caffeyl alcohol is available.
Date: October 9, 2020
Creator: Wang, Xin; Zhuo, Chunliu; Xiao, Xirong; Wang, Xiaoqiang; Docampo-Palacios, Maite; Chen, Fang et al.
System: The UNT Digital Library