Effects of copper accumulation on growth and development of Scopelophila cataractae grown in vitro
3
Issued Date
2022-10-15
Resource Type
ISSN
01476513
eISSN
10902414
Scopus ID
2-s2.0-85138793097
Pubmed ID
36179447
Journal Title
Ecotoxicology and Environmental Safety
Volume
245
Rights Holder(s)
SCOPUS
Bibliographic Citation
Ecotoxicology and Environmental Safety Vol.245 (2022)
Suggested Citation
Printarakul N., Adulkittichai K., Meeinkuirt W. Effects of copper accumulation on growth and development of Scopelophila cataractae grown in vitro. Ecotoxicology and Environmental Safety Vol.245 (2022). doi:10.1016/j.ecoenv.2022.114127 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/84671
Title
Effects of copper accumulation on growth and development of Scopelophila cataractae grown in vitro
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Scopelophila cataractae was cultured in vitro for 16 weeks to assess the contrasting effects of Cu on growth and reproduction, as well as gametophore stage. To induce buds and gametophores of S. cataractae, ten treatments (tr 1 to tr 10) of culture media were prepared using a combination of mineral salts, sugar, vitamin B complex, CuSO4, and exogenous hormones. Highest numbers of gametophores and buds were formed in media containing 500 µM CuSO4 in co-application with auxin and cytokinin, as shown in the modest Cu treatments (tr 6 and tr 7, 26 per cushion and 255 per 25 mm2, respectively). A 5000 µM CuSO4 concentration inhibited development of protonema, possibly due to Cu toxicity, resulting in chloronema forming contorted filaments or short cells containing lipid bodies, and brood body diaspores but no gametophore or bud formation. In this study, S. cataractae Cu accumulation in tissue was substantial (up to 2843.1 mg kg-1; tr 6) with no or minimal adverse effects, reflecting its potential for phytoremediation of Cu in terrestrial and aquatic ecosystems. The highest atomic percentages of Cu and Zn were detected in the stem surfaces of gametophores treated with 500 µM CuSO4 (11% atomic Cu and 7% atomic Zn), which served as a primary heavy metal storage site, ultimately protecting cells from metal toxicity. The success of this in vitro study on S. cataractae should also aid ex situ conservation efforts for a variety of rare moss taxa in the wild.