Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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In Vitro Effect on Light Qualities and Lighting Types Provided by Light-Emitting Diodes (LEDs) for the Mycelia Growth of Soil-Borne Fungal Pathogens in Apple

기내에서 Light-Emitting Diodes(LEDs)를 이용한 광질과 광조사 방법이 사과 토양병원균의 균사생장에 미치는 영향

  • Lee, Sung-Hee (Bureau of Research and Development, Chungcheongbuk-do Agricultural Research and Extension Services) ;
  • Kwon, Yeuseok (Bureau of Research and Development, Chungcheongbuk-do Agricultural Research and Extension Services) ;
  • Shin, Hyunman (Bureau of Research and Development, Chungcheongbuk-do Agricultural Research and Extension Services) ;
  • Chang, Whobong (Bureau of Research and Development, Chungcheongbuk-do Agricultural Research and Extension Services) ;
  • Nam, Sang-Yeong (Bureau of Research and Development, Chungcheongbuk-do Agricultural Research and Extension Services) ;
  • Hong, Eui Yon (Bureau of Research and Development, Chungcheongbuk-do Agricultural Research and Extension Services) ;
  • Cha, Jae-Soon (Department of Plant Medicine, Chungbuk National University) ;
  • Heo, Jeong Wook (Department of Agricultural Engineering, National Institute of Agricultural Sciences, Rural Development Administration)
  • 이성희 (충청북도농업기술원 연구개발국) ;
  • 권의석 (충청북도농업기술원 연구개발국) ;
  • 신현만 (충청북도농업기술원 연구개발국) ;
  • 장후봉 (충청북도농업기술원 연구개발국) ;
  • 남상영 (충청북도농업기술원 연구개발국) ;
  • 홍의연 (충청북도농업기술원 연구개발국) ;
  • 차재순 (충북대학교 식물의학과) ;
  • 허정욱 (농촌진흥청 국립농업과학원 농업공학부 스마트팜개발과)
  • Received : 2016.04.04
  • Accepted : 2016.05.27
  • Published : 2016.06.30
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Abstract

We have studied the mycelia growth of four soil-borne fungal pathogens under light qualities and two lighting types (continuous and intermittent) provided by light-emitting diodes (LEDs). As a result, each mycelia growth on Phytophthora cactorum KACC40166, Athelia rolfsii KACC40170, and Helicobasidium mompa KACC40836 strain showed the similar growth rates within 10% or less difference among treatments compared to dark control, regardless of lighting types. However, the mycelia growth on Rosellinia necatrix KACC40168 strain was significantly suppressed by blue, blue+green and blue+red LED as well as fluorescent lamp compared to a dark control, in common with lighting types. The melanin pigment on R. necatrix KACC40168 strain showed relatively to induce more strongly under green LED and fluorescent lamp, whereas no induction under red LED and a control, regardless of lighting types. Thus, the hypha width on R. necatrix KACC40168 was significantly thinned by blue and blue+green LED compared to a control, in common with lighting types.

본 연구는 LEDs를 이용한 광질과 광조사 방법이 사과나무를 고사시키는 토양병원균 4종의 균사생장에 미치는 영향을 조사하였다. 그 결과, P. cactorum KACC40166 (역병균), A. rolfsii KACC40170 (흰비단병균) 및 H. mompa KACC40836 (자주날개무늬병균) 균주는 광조사 방법 간에 차이 없이 대조구와 비교하여 처리 간 10% 이내의 차이로 유사한 균사생장을 보였다. 그렇지만, R. necatrix KACC40168 (흰날개무늬병균) 균주의 균사생장은 광조사 방법 간에 공통으로 대조구와 비교하여 LED 청색광, 청색+녹색 혼합광, 청색+적색 혼합광 및 형광등 조사에서 유의하게 억제되었다. R. necatrix KACC40168 균주의 멜라닌 색소는 광조사 방법과는 상관 없이 LED 녹색광과 형광등 하에서 상대적으로 강하게 발현된 반면에, LED 적색광과 대조구에서는 유도되지 않았다. 더욱이, R. necatrix KACC40168 균주의 균사 폭은 광조사 방법 간에 공통으로 대조구와 비교하여 LED 청색광과 청색+녹색 혼합광에서 유의성 있게 얇아졌다.

Keywords

References

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