PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25428555-6 2014 For the hypocotyl phenotype in pPLAIIIdelta mutants, which resembles the "triple response" to ethylene, we examined the expression of the ACS and ACO genes involved in ethylene biosynthesis and found that ACS4 and ACS5 were up-regulated by 2.5-fold on average in two OE lines compared with WT plants. ethylene 168-176 acetyl-CoA synthetase Arabidopsis thaliana 138-141