Asian Journal of Turfgrass Science (아시안잔디학회지)

Turfgrass Society of Korea (한국잔디학회)
권호 표지

Endophytes from Natural Festuca spp. in Southwest China and Their Compatibility with Tall Fescue Cultivars

남서중국의 자생페스큐의 엔도파이트와 톨체스큐 품종과의 공생

  • Wang, Yaoyao (Institute of Turfgrass Science, Beijing Forestry University) ;
  • Du, Yongji (Institute of Turfgrass Science, Beijing Forestry University) ;
  • Han, Liebao (Institute of Turfgrass Science, Beijing Forestry University) ;
  • Li, Deying (Department of Plant Sciences, North Dakota State University)
  • 왕야오야오 (중국 베이징임학대학교 잔디연구소) ;
  • 두용지 (중국 베이징임학대학교 잔디연구소) ;
  • 한리바우 (중국 베이징임학대학교 잔디연구소) ;
  • 리다이엥 (미국 노스타코다대학교 식물학과)
  • Published : 2009.06.30
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Abstract

Investigating endophyte distribution, naturally occurring in native grasses, is important for understanding endophyte-grass associations and using the beneficial effects of endophytes in cultivated plants. The goal of this study was to investigate endophytes from natural Festuca spp. in Yunnan, Guizhou, and Sichuan Provinces of China, and to study the compatibility between the endophytes and turf type tall fescue (Festuca arundinacea) which is widely used for lawn and athletic fields in that region. Of 628 accessions in F. ovina, 421 had endophytes identified in leaf sheath from on-site microscopic examination. From Festuca spp, three isolates were obtained from the seeds and ninety isolates were obtained from seedlings established from the collected seeds. The isolates from F. ovina and F. stapfii were tentatively identified as Neotyphodium typhinum and Neotyphodiumstarii, respectively. We tested compatibility of the two fungal species with seven tall fescue cultivars, Little Hero, Sub Boy, Eldorado, Arid III, Millennium, Crossfire, and Fawn. N. typhinum or N. starii did not infect 'Fawn' with either seed injection or seed soaking method. The highest infection rate byboth N. typhinum and N. starii was in 'Sun Boy' and 'Eldorado'. There were significant interaction effects between tall fescue cultivar and type of endophyte on infection.

자생화본과 식물에서 자연적으로 생기는 엔도파이트 분포의 연구는 엔도파이트 공생에 대한 이해와 재배식물에서의 엔도파이트의 잇점에 대하여 중요하다. 본 연구는 중국 유난, 구이죠우, 시촨지역에서 자생하는 페스큐로부터 엔도파이트를 조사하고, 그 지역에서 널리 식재되는 잔디형 페스큐와의 융화에 대하여 연구하는데 목표를 두었다. 현장의 현미경 관찰 결과628개체의 sheep fescue 중 421개체가 엽초조직에서 엔도파이트가 동정되었다. 페스큐종에서 3개는 종자에서, 90개의 엔도파이트 분리체가 수집된 종자의 유묘에서 수집되었다. sheep fescue와 stapfii 페스큐의 엔도파이트는 Neotyphodium typhinum와 Neotyphodium starii로 각각 동정되었다. Little Hero, Sub Boy, Eldorado, Arid III, Millennium, Crossfire, 그리고 Fawn 톨페스큐 7품종에서 위 2종의 균류의 융화성을 조사한 결과, N. typhinum 나 N. typhinum and N. starii는 'Sun Boy'와 'Eldorado'에서 가장 높은 접종율을 보였다. 톨페스큐 품종과 엔도파이트 타입과의 접종에서 매우 높은 유의성의 교호 효과를 보였다.

Keywords

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