Guangjin Li1,2, Shuhua Zhu3, Wenxue Wu1, Chang Zhang1, Yong Peng1, Qingguo Wang1, Jingying Shi1. 1. College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong Province, China. 2. College of Life Sciences, Shandong Agricultural University, Taian, Shandong Province, China. 3. College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong Province, China.
Abstract
BACKGROUND: Nitric oxide (NO) is a multifunctional signaling molecule involved in plant-induced resistance to disease. The present study aimed to investigate the relationship between disease resistance induced by NO and the phenylpropanoid pathway in peach fruit. The present study investigated the effect of NO on the main enzymes and metabolites of the phenylpropanoid pathway of harvested peach, which are probably related to disease resistance against Monilinia fructicola. RESULTS: The results showed that treatment with 15 µmol L-1 NO significantly (P < 0.05) enhanced the activities of phenylalanine ammonia-lyase, cinnamate-4-hydroxylase, 4-coumaroyl-CoA ligase, chalcone synthase and chalcone isomerase and the expression of their genes. Furthermore, NO treatment significantly (P < 0.05) increased the contents of total phenolics, flavonoids and lignin over the entire storage period and maintained higher total anthocyanin, phenolic acid and anthocyanin contents during the earlier storage period. CONCLUSION: These results suggest that NO treatment could activate the phenylpropanoid pathway to enhance the activity of related enzymes and the contents of phenylpropanoid metabolites in peach to improve disease resistance and prevent pathogenic invasion.
BACKGROUND:Nitric oxide (NO) is a multifunctional signaling molecule involved in plant-induced resistance to disease. The present study aimed to investigate the relationship between disease resistance induced by NO and the phenylpropanoid pathway in peach fruit. The present study investigated the effect of NO on the main enzymes and metabolites of the phenylpropanoid pathway of harvested peach, which are probably related to disease resistance against Monilinia fructicola. RESULTS: The results showed that treatment with 15 µmol L-1 NO significantly (P < 0.05) enhanced the activities of phenylalanine ammonia-lyase, cinnamate-4-hydroxylase, 4-coumaroyl-CoA ligase, chalcone synthase and chalcone isomerase and the expression of their genes. Furthermore, NO treatment significantly (P < 0.05) increased the contents of total phenolics, flavonoids and lignin over the entire storage period and maintained higher total anthocyanin, phenolic acid and anthocyanin contents during the earlier storage period. CONCLUSION: These results suggest that NO treatment could activate the phenylpropanoid pathway to enhance the activity of related enzymes and the contents of phenylpropanoid metabolites in peach to improve disease resistance and prevent pathogenic invasion.
Authors: Salvador González-Gordo; Rocío Bautista; M Gonzalo Claros; Amanda Cañas; José M Palma; Francisco J Corpas Journal: J Exp Bot Date: 2019-08-29 Impact factor: 6.992
Authors: Tauqeer Ahmad Yasir; Ayesha Khan; Milan Skalicky; Allah Wasaya; Muhammad Ishaq Asif Rehmani; Naeem Sarwar; Khuram Mubeen; Mudassir Aziz; Mohamed M Hassan; Fahmy A S Hassan; Muhammad Aamir Iqbal; Marian Brestic; Mohammad Sohidul Islam; Subhan Danish; Ayman El Sabagh Journal: Molecules Date: 2021-04-28 Impact factor: 4.411