Effects of mycorrhiza isolates on symbiotic germination of terrestrial orchids (Orchis palustris Jacq. and Serapias vomeracea subsp vomeracea (Burm.f.) briq.) in Turkey

ESITKEN A., Ercisli S., EKEN C.

SYMBIOSIS, cilt.38, sa.1, ss.59-68, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Sayı: 1
  • Basım Tarihi: 2005
  • Dergi Adı: SYMBIOSIS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.59-68
  • Anahtar Kelimeler: Orchis palustris, Serapias vomeracea, mycorrhizal fungi, symbiotic seed germination, protocorm development, FUNGI, ERZURUM
  • Atatürk Üniversitesi Adresli: Evet

Özet

The objective of this study was to determine the effects of a number of Rhizoctonias, isolated from wild orchids from different parts of the Northeast Anatolia Region of Turkey, on seed germination and protocorm development of Orchis palustris Jacq. and Serapias vomeracea subsp. vomeracea (Burm.f.) Briq. Fifteen binucleate Rhizoctonia and one Rhizoctonia solani isolates were obtained from Dactylorhiza, Orchis and Serapias in Erzurum, Erzincan and Artvin regions. When O. palustris and S. vomeracea seeds were inoculated with these isolates, they germinated within 21 days. Germination was slightly higher in O. palustris (27%) than in S. vomeracea (23%). Among the mycorrhizal fungus isolates tested, two strains (BNR 8-3 and BNR 15-2) gave the highest germination percentage in both species (42%), while uninoculated control seeds of both species showed the lowest germination rate (<1%). Although all of the isolates promoted seed germination in both species, protocorm development was only observed in O. palustris seeds inoculated with BNR 8-3 (5.92%), BNR 10-8 (2.34%) and RS 22-2 (2.14%). All of the isolates did not promote protocorm development in S. vomeracea.