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2020 Vol.42, Issue 3 Preview Page

Article

A Study on Carpospore Release Induction Method of Agarophyton vermiculophyllum

홍조류 꼬시래기(Agarophyton vermiculophyllum)의 과포자방출 유도 방법에 대한 연구

Han Gil Choi1*
최 한길1*
1Faculty of Biological Science and Institute of Basic Natural Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Korea
1원광대학교 자연과학대학 생명과학부·기초자연과학연구소, (54538) 전라북도 익산시 익산대로 460
*Corresponding Author
30 September 2020. pp. 225-231
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Abstract

The aim of this study was to examine optimal induction method for carpospore release from Agarophyton vermiculophyllum cystocarps for seedling production. We tested the effects of environmental factors on carpospore release by using five different induction methods; spontaneous, desiccation, low temperature, desiccation+low temperature, and osmotic shock. Also, carpospores release was estimated at three temperatures (20, 25, and 30℃), and then under combinations of three day lengths (8, 12, and 16h) and two irradiances (30 and 60 µmol photons m-2 s-1), after pretreatment at desiccation+low temperature for 2 hr. The number of carpospores released was between 113 ~ 682 spores /cystocarp/day and it was maximal in the desiccation+low temperature treatment. Optimal environmental conditions for carpospore release of A. vermiculophyllum were 25℃, 16 h, and 60 µmol photons m-2 s-1. The present results suggest that massive carpospores for seedling production of A. vermiculophyllum could be obtained under a combination of 25℃, 16 h, and 60 µmol photons m-2 s-1 after pretreatment in the desiccation+low temperature.

Keywords
Agarophyton vermiculophyllum
carpospore release
daylength
irradiance
temperature
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Information
  • Publisher :Korea Institute of Ocean Science and Technology
  • Publisher(Ko) :한국해양과학기술원
  • Journal Title :Ocean and Polar Research
  • Journal Title(Ko) :Ocean and Polar Research
  • Volume : 42
  • No :3
  • Pages :225-231
  • Received Date : 2020-02-25
  • Revised Date : 2020-07-15
  • Accepted Date : 2020-08-21
  • DOI :https://doi.org/10.4217/OPR.2020.42.3.225
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