Factors affecting in vitro plant regeneration of the critically endangered Mediterranean knapweed (Centaurea tchihatcheffii Fisch et. Mey)

Habitat destruction has resulted in the extinction of many plant species from the earth, and many more face extinction. Likely, the annual endemic Mediterranean knapweed (Centaurea tchihatcheffii) growing in the Golbasi district of Ankara, Turkey is facing extinction and needs urgent conservation. Plant tissue culture, a potentially useful technique for ex situ multiplication, was used for the restoration of this ill-fated plant through seed germination, micropropagation from stem nodes, and adventitious shoot regeneration from immature zygotic embryos. The seeds were highly dormant and very difficult to germinate. No results were obtained from the micropropagation of stem nodes. However, immature zygotic embryos showed the highest adventitious shoot regeneration on Murashige and Skoog (MS) medium, containing 1 mg l⁻¹ kinetin and 0.25 mg l⁻¹ NAA. Regenerated shoots were best rooted on MS medium containing 1 mg l⁻¹ IBA and transferred to the greenhouse for flowering and seed set. As such, the present work is the first record of in vitro propagation of critically endangered C. tchihatcheffii, using immature zygotic embryos, and is a step forward towards conservation of this indigenous species.     

Innovative technologies to remove alkylphenols from wastewater: a review

Environmental Chemistry Letters - Alkylphenols and alkylphenol polyethoxylates are emerging hazardous contaminants due in particular to their endocrine-disrupting properties. These compounds...     

Impact of human capital and financial globalization on environmental degradation in OBOR countries: Critical role of national cultural orientations

Environmental Science and Pollution Research - As regional economic integration and climate change are among the most important phenomena influencing economic and social sustainability in the...     

Understanding the dynamics of natural resources rents,environmental sustainability,and sustainable economic growth: new insights from China

Environmental Science and Pollution Research - There is a close relationship between natural resources and production in many sectors, and production and consumption can also have an environmental...     

Preparation of Chitosan with High Antibacterial Efficiency from Penicillium crustosum TZ18

Journal of Polymers and the Environment - Fungi are accepted as novel sources of chitinous materials. The present study was performed to produce chitinous material from locally isolated Penicillium...