Search Result of "Suparp Artjariyasripong"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Mycorrhizal Fungi from Spathoglottis plicata and the Use of these Fungi to Germinate Seeds of S. plicata in vitro)

ผู้เขียน:ImgPornpimon Athipunyakom, Imgดร.เลขา มาโนช, รองศาสตราจารย์, Imgนางจิตราพรรณ พิลึก, รองศาสตราจารย์, ImgSuparp Artjariyasripong, ImgSomwong Tragulrung

สื่อสิ่งพิมพ์:pdf

Abstract

Healthy roots from mature plants of terrestrial orchid, Spathoglottis plicata (Blume.) collected from Chiang Mai, Chanthaburi, Nakhon Ratchasima and Bangkok were used to isolate mycorrhizal fungi. A modification of Masuhara and Katsuya’s method was employed to isolate these fungi from the peloton. Identification was based on morphological characteristics. Nuclei were stained with safranin O using Bandoni’s method revealing that all isolates were binucleate. Three genera and four species of mycorrhizal fungi were identified: Epulorhiza repens, Rhizoctonia globularis, Rhizoctonia sp. and Sabacina sp. (Epulorhiza sp. anamorph). In vitro, symbiotic seed germination and development on seeds of S. plicata were tested using Epulorhiza repens and Rhizoctonia globularis. It was found that 99.2% of seeds inoculated with Epulorhiza repens and 96.3% of seeds inoculated with Rhizoctonia globularis germinated within 21 days, whereas only 15% of seeds incubated in the absence of fungi germinated. About 8.1% of seeds inoculated with Epulorhiza repens and 1.7% of seeds inoculated with Rhizoctonia globularis initiated leaves after 60 days of incubation, whereas in the absence of fungi they did not develop into seedlings and mortality gradually occurred. The seedlings became more mature and ready to be planted after 127 days.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 038, Issue 1, Jan 04 - Mar 04, Page 83 - 93 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Thermotolerant and Thermoresistant Paecilomyces and its Teleomorphic States Isolated from Thai Forest and Mountain Soils)

ผู้เขียน:ImgJanet Jennifer Luangsa-ard, Imgดร.เลขา มาโนช, รองศาสตราจารย์, ImgNigel Hywel-Jones, ImgSuparp Artjariyasripong, ImgRobert A. Samson

สื่อสิ่งพิมพ์:pdf

Abstract

A Dilution plate method combined with heat treatment at 60?C and 80?C was used to isolate thermotolerant and thermoresistant Paecilomyces species in soil. The predominant species of Paecilomyces that had been identified was Paecilomyces variotii, the type species of the genus. Oatmeal Agar was used to induce the teleomorph at 37?C. Other species isolated belong to Paecilomyces or its teleomorphic states Byssochlamys, Talaromyces and Thermoascus included Byssochlamys nivea, Byssochlamys fulva, Talaromyces byssochlamydoides and Thermoascus crustaceus.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 038, Issue 1, Jan 04 - Mar 04, Page 94 - 101 |  PDF |  Page