บฺมฯฒปด๒์ศ

Dare to Think

News

[์—ฐ๊ตฌ์†Œ์‹] ๋ฐฉ๋ฌธ๊ต์ˆ˜ Godelieve Gheysen, ์„ธ๋ฏธ๋‚˜ ๊ฐ•์—ฐ
18/05/30 11:30 | ๊ดถฤ๋ฆฌ์ž | View 19494 | Comments 0

๋ฐฉ๋ฌธ๊ต์ˆ˜ Godelieve Gheysen ๊ฐ•์—ฐ: ์„ ์ถฉ ์นจ์˜ ์‹๋ฌผ๋ฉด์—ญ ์–ต์ œ๋Šฅ๋ ฅ

 

์ง€๋‚œ 4์›”26์ผ, ๊ฒํŠธ๋Œ€ํ•™๊ต ๋ฐฉ๋ฌธ๊ต์ˆ˜ Godelieve Gheysen๋Š” “์„ ์ถฉ ์นจ์˜ ์‹๋ฌผ๋ฉด์—ญ ์–ต์ œ๋Šฅ๋ ฅ”์ด๋ž€ ์ œ๋ชฉ์œผ๋กœ ๊ฐ•์—ฐ์„ ์ง„ํ–‰ํ•˜์˜€๋‹ค. ๋ฒผ(Oryza sativa L.)๋Š” ์•„์ฃผ ์ค‘์š”ํ•œ ์‹ํ’ˆ์ด๊ธฐ๋„ ํ•˜์ง€๋งŒ ์™ธ๋–ก์žŽ ์‹๋ฌผ์„ ๋Œ€ํ‘œํ•˜๋Š” ๋ชจ๋ธ ์œ ๊ธฐ์ฒด์ธ๋ฐ, ๊ทผ๋ž˜ ๋ฏผ๋ฌผ ๊ฒฐํ•์œผ๋กœ ์ธํ•œ ์œ ์‚ฐ์†Œ ์žฌ๋ฐฐ ๋ฐฉ๋ฒ•์œผ๋กœ ๋ฟŒ๋ฆฌํ˜น ์„ ์ถฉ(Meloidogyne graminicola)์˜ ๊ฐ์—ผ๊ณผ ํ™•์‚ฐ ๊ฐ€๋Šฅ์„ฑ์ด ๋†’์•„์ง€๊ณ  ์žˆ๋‹ค. ๋ฟŒ๋ฆฌํ˜น ์„ ์ถฉ์ด๋ž€ ์‹๋ฌผ ๋ณ‘์›์ฒด๋Š” ์ •์ฃผ์„ฑ ์‚ถ์„ ์‚ด์•„๊ฐ€๊ธฐ ๋•Œ๋ฌธ์— ๋ฟŒ๋ฆฌ์—์„œ ์˜ค๋ž˜ ์‚ด์•„๊ฐ€๊ธฐ ์œ„ํ•œ ๋ณต์žกํ•œ ๊ฐ์—ผ ์ „๋žต์„ ์ง€๋‹ˆ๊ณ  ์žˆ๋Š”๋ฐ, ํŠนํžˆ ์‹๋ฌผ ๋‚ด์— ์„ ์ถฉํšจ๊ณผ๊ธฐ (Nematode effectors)๋ฅผ ๋ถ„๋น„ํ•˜์—ฌ ์„ฑ๊ณต์ ์ธ ๊ธฐ์ƒ์„ ํ•˜๋„๋ก ๋•๋Š”๋‹ค. Gheysen ์—ฐ๊ตฌํŒ€์€ ์ฃผ๋กœ ์„ ์ถฉํšจ๊ณผ๊ธฐ์˜ ์‹๋ฌผ๋ฉด์—ญ ์–ต์ œ๋งค์ปค๋‹ˆ์ฆ˜๊ณผ ์‹๋ฌผ ํ˜ธ๋ฅด๋ชฌ์ „๋‹ฌ์— ๋Œ€ํ•œ ์ €ํ•ด์ž‘์šฉ์„ ์—ฐ๊ตฌํ•˜๊ณ  ์žˆ๊ณ  ์„ ์ถฉ์„ ์ €ํ•ญํ•˜๋Š” ๋ฒผ๋ฅผ ์ƒ์—…ํ™”ํ•˜๊ธฐ ์œ„ํ•œ ์—ฐ๊ตฌ๋ฅผ ์ง„ํ–‰ํ•˜๊ณ  ์žˆ๋‹ค. ์‹คํ—˜๊ฒฐ๊ณผ๋กœ ์„ ์ถฉํšจ๊ณผ๊ธฐ๊ฐ€ ์‹๋ฌผ์˜ PTI (PAMP triggered immunity)๋ฅผ ์–ต์ œํ•œ๋‹ค๋Š” ๊ฒƒ์ด ๋ฐํ˜€์กŒ๊ณ , ํ•œํŽธ์œผ๋กœ๋Š” ๋ฟŒ๋ฆฌํ˜น ์„ ์ถฉ์˜ ๊ธฐ์ƒ๋Šฅ๋ ฅ์„ ์–ต์ œํ•˜๋Š” ๋ฒผ ์ข…๋ฅ˜๋„ ์ฐพ์•„๋ƒˆ๋‹ค. 

 

Rice (Oryza sativa L.) is not only a staple food but also a good model organism for monocot plants. Scarcity of fresh water is causing a shift to aerobic rice cultivation which benefits the distribution and infection of Meloidogyne graminicola, the most damaging root-knot nematode of rice [Kyndt et al., 2014, Annual Review of Phytopathology 52: 135-153). M. graminicola is a biotrophic pathogen with a sedentary life style and therefore it developed complex strategies to invade and survive in the roots for a long period. Nematode effectors secreted in the plant by the nematode are essential for successful parasitism. In our research, we are analyzing how nematode effectors suppress the plant defense response and interfere with plant hormone pathways [Yimer et al., 2018, New Phytologist 218: 646-660]. Assays triggering the early defense response of the plant demonstrate that effectors can suppress PTI (PAMP triggered immunity) [Naalden et al. 2018, Molecular Plant Pathology in press]. On the other hand, screening has identified rice varieties that are resistant to M. graminicola [Dimkpa et al., 2016, Journal of Experimental Botany: 67, 1191–1200] opening new research opportunities for the analysis of the rice-nematode interaction and opportunities to develop commercial varieties resistant to M. graminicola.

 

๊ฒํŠธ๋Œ€ํ•™๊ต ์ƒ๋ช…๊ณผํ•™๋ถ€ ์ƒ๋ฌผ๊ณตํ•™๊ณผ ๊ต์ˆ˜ Godelieve Gheysen: godelieve.gheysen@ugent.be

 

โ€‹