Tolerance performance of the cool-season turfgrass species Festuca ovina , Lolium perenne , Agrostis tenuis , and Poa trivialis to sulfur dioxide stress

Journal of plant interactions

article

Xi Li¹  Huameng Cen¹  Lingli Peng¹  Yiqiao Li²  Lingxia Sun¹  Shizhen Cai¹  Zhuo Huang¹ 

[1] College of Landscape Architechure, Sichuan Agricultural Univserstiy;Business School, Sichuan Agricultural University

关键词: antioxidant enzymes;    cool-season turfgrass;    osmoprotectants;    photosynthetic pigments;    stress response;    sulfur dioxide;   

DOI  :  10.1080/17429145.2015.1019984

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

Tolerance of four cool-season turfgrass species sheep fescue ( Festuca ovina ), perennial ryegrass ( Lolium perenne ), colonial bentgrass ( Agrostis tenuis ) and rough bluegrass ( Poa trivialis ) to SO 2 was studied by investigating their injury and physiological responses under SO 2 stress for 14 days. Results showed that sheep fescue and perennial ryegrass had better SO 2 tolerance than rough bluegrass and colonial bentgrass. Chlorophyll a and carotenoid contents were significantly higher in the SO 2 -tolerant turfgrass species (sheep fescue and perennial ryegrass) than in the SO 2 -sensitive turfgrass species (rough bluegrass and colonial bentgrass). Relatively lower levels of reactive oxygen species (ROS), malondialdehyde, and electrolyte leakage (EL) were observed in SO 2 -tolerant turfgrass species. Gradually increased antioxidant enzyme activities and proline content in SO 2 -tolerant turfgrass species could counteract such damages and harmful effects caused by ROS and EL, respectively. Sulfite reductase played an important role in sulfur metabolism and subsequently reduced oxidative pressure on SO 2 -tolerant turfgrass species.

【 授权许可】

CC BY|CC BY-NC