Journal of Applied Phycology

, Volume 30, Issue 6, pp 3395–3404 | Cite as

The hormesis effects of low-dose 60Co gamma irradiation on high-temperature tolerance in cultivated Sargassum horneri (Fucales, Phaeophyceae)

  • Roger HuangEmail author
  • Yean-Chang Chen
8th Asian Pacific Phycological Forum


Radiation hormesis is a phenomenon in which low doses of ionizing radiation can have stimulatory effects on biological systems. The temperate brown alga Sargassum horneri was the subject of this study on the hormetic effects of low-dose 60Co gamma radiation on macroalgae incubated in vitro at high temperatures. Sargassum horneri embryos were irradiated with 15, 20, and 25 Gy 60Co radiation and then incubated in vitro at 18, 21, 24, 27, and 30 °C. The same radiation treatment was also applied to S. horneri embryos grown in situ in outdoor mass cultivation. Non-irradiated in vitro control cultures had optimal growth at 21 °C, but irradiated cultures had optimal growth at 27 °C and growth was significantly enhanced by 32% compared to the control cultures at 21 °C. In contrast, in situ cultures of S. horneri in outdoor 10-ton seawater tanks showed that irradiated thalli had less total biomass as compared to non-irradiated control thalli. While low doses of gamma radiation may induce high-temperature tolerance resulting in better growth rates under the highly controlled in vitro culture conditions, these effects were not clearly observed in the in situ outdoor mass-cultivation.


Cultivation Gamma radiation Radiation Hormesis Sargassum horneri Phaeophyta Temperature tolerance 



We would like to thank the staff at the Institute of Nuclear Energy Research (INER), Atomic Energy Council, Longtan, Taiwan for facilitating this research.


  1. Chen Y (2011) The hormesis of the green macroalga Ulva faciata with low-dose 60Cobalt gamma radiation. J Phycol 47:939–943CrossRefGoogle Scholar
  2. Choi H, Lee K, Yoo H, Kang P, Kim Y, Nam K (2008) Physiological differences in the growth of Sargassum horneri between the germling and adult stages. J Appl Phycol 20:729–735CrossRefGoogle Scholar
  3. Gileva Z, Timofeeva N, Timofeev-Resovskii N (1965) The effect of a single dose of gamma radiation Co-60 on the growth of chlorella cultures. Radiobiologiia 5:732–734 (In Russian)Google Scholar
  4. Hoshino T, Hayashi T, Hayashi K, Hamada J, Lee J (1998) An antiviral active sulfated polysaccharide from Sargassum horneri (tuner) C. Agardh. Biol Pharm Bull 21:730–734CrossRefGoogle Scholar
  5. Jan S, Parween T, Siddiqi T, Mahmooduzzafar X (2012) Effect of gamma radiation on morphological, biochemical and physiological aspects of plants and plant products. Environ Rev 20:17–39CrossRefGoogle Scholar
  6. Kim J, Chung B, Kim J, Wi S (2005) Effects of gamma-irradiation on growth, photosynthesis, and antioxidative capacity of red pepper (Capsicum annuum L.) plants. J Plant Biol 48:47–56CrossRefGoogle Scholar
  7. Komatsu T, Matsunaga D, Mikami A, Sagawa T, Boisnier E, Tatsukawa K, Aoki M, Ajisaka T, Uwai S, Tanaka K, Ishida K, Tanoue H, Sugimoto T (2009) Abundance of drifting seaweeds in eastern East China Sea. J Appl Phycol 20:801–809CrossRefGoogle Scholar
  8. Komatsu T, Fukuda M, Mikami A, Mizuno M, Kantachumpoo A, Tanoue H, Kawamiya M (2014) Possible change in distribution of seaweed, Sargassum horneri, in Northeast Asia under A2 scenario of global warming and consequent effect on some fish. Mar Pollut Bull 85:317–324CrossRefGoogle Scholar
  9. Lin S, Huang R, Ogawa H, Liu L, Wang Y, Chiou Y (2017) Assessment of germling ability of the introduced marine brown alga, Sargassum horneri, in northern Taiwan. J Appl Phycol 29:2641–2649CrossRefGoogle Scholar
  10. Luckey T (1980) Hormesis with ionizing radiation. CRC Press, Boca RatonGoogle Scholar
  11. Maity J, Mishra D, Chakraborty A, Saha A, Santra S, Chanda S (2005) Modulation of some quantitative and qualitative characteristics in rice (Oryza sativa L.) and mung (Phaseolus mungo L.) by ionizing radiation. Radiat Phys Chem 74:391–394CrossRefGoogle Scholar
  12. Marcu D, Cristea V, Daraban L (2013) Dose-dependent effects of gamma radiation on lettuce (Lactuca sativa var. capitata) seedlings. Int J Radiat Biol 89:219–223CrossRefGoogle Scholar
  13. Moussa H (2011) Low dose of gamma irradiation enhanced drought tolerance in soybean. Bulg J Agric Sci 17:63–72Google Scholar
  14. Nanba N, Kado R, Ogawa H (2002) Long-term maintenance of germlings of Sargassum horneri and S. yezoense (Fucales, Phaeophyceae) at low photon irradiance. Sessile Organisms 19:1–5CrossRefGoogle Scholar
  15. Pang S, Liu F, Shan T, Gao S, Zhang Z (2009) Cultivation of the brown alga Sargassum horneri: sexual reproduction and germling production in tank culture under reduced solar irradiance in ambient temperature. J Appl Phycol 21:413–422CrossRefGoogle Scholar
  16. Provasoli L (1968) Media and prospects for the cultivation of marine algae. In: Watanabe A, Hattori A (eds) Cultures and collections of algae. Proc U.S.-Japan Conf Hakone, Japan, September 1966. Japanese Society of Plant Physiology, Tokyo, pp 63–75Google Scholar
  17. Southam C, Ehrllich J (1943) Effects of extracts of western red cedar heartwood on certain wood-decaying fungi in culture. Phytopathology 33:517–524Google Scholar
  18. Qi W, Zhang L, Wang L, Xu H, Jin Q, Jiao Z (2015) Pretreatment with low-dose gamma irradiation enhances tolerance to the stress of cadmium and lead in Arabidopsis thaliana seedlings. Ecotoxicol Environ Saf 115:243–249CrossRefGoogle Scholar
  19. Uchida T (1993) The life cycle of Sargassum horneri (Phaeophyta) in laboratory culture. J Phycol 29:231–235CrossRefGoogle Scholar
  20. Vo T, Kim K (2013) Fucoidans as a natural bioactive ingredient for functional foods. J Funct Foods 5:16–27CrossRefGoogle Scholar
  21. Wi S, Chung B, Kim J, Kim J, Baek M, Lee J, Kim Y (2007) Effects of gamma irradiation on morphological changes and biological responses in plants. Micron 38:553–564CrossRefGoogle Scholar
  22. William F (1972) Response of the alga Chlorella sorokiniana to 60Co gamma radiation. Nature 236:178–179CrossRefGoogle Scholar
  23. Zhang L, Zheng F, Qi W, Wang T, Ma L, Qiu Z, Li J (2016) Irradiation with low-dose gamma ray enhances tolerance to heat stress in Arabidopsis seedlings. Ecotoxicol Environ Saf 128:181–188CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of AquacultureNational Taiwan Ocean UniversityKeelungTaiwan

Personalised recommendations