We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of phthalic acid and cinnamic acid on growth and activities of protective enzymes of Pugionium cornutum (L.) Gaertn. and Pugionium dolabratum Maxim.
- Authors
NING Kezhen; YUAN Xuesong; YANG Zhongren; HAO Lizhen; ZHANG Fenglan; SUN Jingjie
- Abstract
[Objective] This study clarified the effect of phthalic acid and cinnamic acid on growth and protective enzyme activities of Pugionium cornutum (L.) Gaertn. and Pugionium dolabratum Maxim to provide basis for researching autotoxicity of Pugionium cornutum (L.) Gaertn. [Method] Seedlings of Pu-gionium cornutum (L.) Gaertn. and Pugionium dolabratum Maxim, were irrigated with phthalic acid and cinnamic acid at concentrations of 0(CK), 0.01, 0.1, 1 and 10 mmol/L and the changes in growth indexes (leaf length, root length, leaf fresh weight, ground fresh weight, dry leaf weight and root dry weight), protective enzyme activities (POD, SOD and CAT) and malondialdehyde (MDA) content were observed and analyzed. [Result] The growth of Pugionium cornutum (L.) Gaertn. seedlings was promoted under low concentration and inhibited under high concentration of phthalic acid and cinnamic acid. The root length was significantly increased by 0.01 mmol/L phthalic acid, and leaf length, root length, root fresh quality and dry leaf quality were increased significantly by 0.01 mmol/L cinnamic acid. Growth of Pugionium dolabratum Maxim, was inhibited by both phthalic acid and cinnamic acid. Activity of SOD in the leaves and roots of Pugionium cornutum (L.) Gaertn. treated with 0.1 mmol/L phthalic acid higher was than the control, and SOD activity of Pugionium cornutum (L.) Gaertn. leaves was higher than the control with 0.01 mmol/L cinnamic acid. SOD activity of Pugionium cornutum (L.) Gaertn. roots treated with 0.1 mmol/L cinnamic acid was higher than that of the control. SOD activity in leaves of Pugionium dolabratum Maxim, treated with phthalic acid decreased gradually, and SOD activity in roots of Pugionium dolabratum Maxim, treated with 0.1 mmol/L phthalic acid was higher than that of control. SOD activity in leaves and roots of Pugionium dolabratum Maxim, decreased gradually with increasing cinnamic acid. Activities of POD and CAT of Pugionium cornutum (L.) Gaertn. and Pugionium dolabratum Maxim, treated with 0.01 mmol/L phthalic acid and cinnamic acid were higher than the control, and they decreased with the increase of phthalic acid and cinnamic acid concentration. Content of MDA increased with the increase of phthalic acid and cinnamic acid concentrations. With 10 mmol/L phthalic acid and cinnamic acid, contents of MDA in leaves and roots of Pugionium cornutum (L.) Gaertn. and Pugionium dolabratum Maxim, all increased. [Conclusion] Phthalic acid and cinnamic acid affected growth of Pugionium cornutum (L.) Gaertn. with promotion at low concentration of 0.01 mmol/L and inhibition at increasing concentration, while they all inhibited growth of Pugionium dolabratum Maxim. Both phthalic acid and cinnamic acid exhibited low concentration promotion and high concentration inhibition on activities of protective enzymes, and the effects of phthalic acid were stronger.
- Publication
Journal of Northwest A & F University - Natural Science Edition, 2021, Vol 49, Issue 11, p97
- ISSN
1671-9387
- Publication type
Article
- DOI
10.13207/j.cnki.jnwafu.2021.11.013