Influence of plant residue chemistry on soil CO2aC production: A study with Arabidopsis thaliana cell wall mutants of KNAT7, MYB75 and CCR1

Alteration of plant lignin concentration is expected to affect the C mineralization of crop residues. Mutations of single genes involved in biosynthesis of secondary cell walls such as KNOTTED ARABIDOPSIS THALIANA 7 (KNAT7), PRODUCTION OF ANTHOCYANIN PIGMENT 1 (PAP1) also known as MYB75, and cinnamo...

Full description

Saved in:
Bibliographic Details
Published in:Pedobiologia 2012-11, Vol.55 (6), p.349-356
Main Authors: Gul, Shamim, Whalen, Joann K, Ellis, Brian E, Mustafa, Arif F
Format: Article
Language:English
Subjects:
Aldehydes
Arabidopsis thaliana
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Alteration of plant lignin concentration is expected to affect the C mineralization of crop residues. Mutations of single genes involved in biosynthesis of secondary cell walls such as KNOTTED ARABIDOPSIS THALIANA 7 (KNAT7), PRODUCTION OF ANTHOCYANIN PIGMENT 1 (PAP1) also known as MYB75, and cinnamoyl CoA reductase 1 (CCR1) coding genes could change lignin concentration in specific plant tissues. This study assessed the CO2aC production of soil amended with stem and root tissues of down-regulated (k/o) and over expression (o/x) KNAT7 and MYB75 and the CCR1 k/o mutant lines of A. thaliana. KNAT7 k/o and MYB75 k/o were grown in two different environmental conditions (two cohorts) in the greenhouse. Oven dried, finely ground (
ISSN:0031-4056
DOI:10.1016/j.pedobi.2012.08.003