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NTIS 바로가기KSBB Journal, v.31 no.1, 2016년, pp.58 - 65
홍선화 (수원대학교 환경에너지공학과) , 김지슬 (수원대학교 환경에너지공학과) , 심준규 (수원대학교 환경에너지공학과) , 이은영 (수원대학교 환경에너지공학과)
In this study, Arthrobacter scleromae SYE-3, which was isolated from indigenous plant in a subtropical region, Neigeria, with plant growth promoting activity was evaluated to determine the optimal culture condition. A bacterial strain SYE-3 had the IAA productivity (
핵심어 | 질문 | 논문에서 추출한 답변 |
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식물성장 촉진 근권미생물의 역할은 무엇인가? | PGPR은 식물의 뿌리에 흡착하거나, 군락을 형성하여 식물의 뿌리 삼출물을 이용하며 성장한다. PGPR은 항생물질을 생산하여 식물 병원균으로부터 식물을 보호하거나, 대기 중의 질소를 고정하여 식물에게 질소원을 공급하고, 식물의 성장을 조절하는 다양한 효소를 생산하여, 여러가지 대사를 통해 토양내의 인과 철과 같은 미네랄을 가용화 시켜 식물이 흡수하기 쉽게 도와주는 등의 역할을 한다 [4-6]. | |
근권토양이란 무엇인가? | 식물의 뿌리를 둘러싸고 있으며, 뿌리를 흔들었을 때 떨어지지 않고 강하게 붙어있어 뿌리의 영향을 받는 토양권을 ‘근권토양 (rhizosphere soil)’이라하며 이 용어는 1904년 Hiltner에 의해 처음 정의되었다 [1]. 근권은 식물의 뿌리가 성장하는 동안 다양한 물질 (뿌리삼출물)을 흡수하고 배출하여 토양내에 독특한 환경을 형성하고 토양 미생물의 활성과 번식에 매우 유리한 환경을 제공한다 [2]. | |
근권의 특징은 무엇인가? | 식물의 뿌리를 둘러싸고 있으며, 뿌리를 흔들었을 때 떨어지지 않고 강하게 붙어있어 뿌리의 영향을 받는 토양권을 ‘근권토양 (rhizosphere soil)’이라하며 이 용어는 1904년 Hiltner에 의해 처음 정의되었다 [1]. 근권은 식물의 뿌리가 성장하는 동안 다양한 물질 (뿌리삼출물)을 흡수하고 배출하여 토양내에 독특한 환경을 형성하고 토양 미생물의 활성과 번식에 매우 유리한 환경을 제공한다 [2]. 이러한 근권에서 서식하는 미생물을 근권미생물 (rhizosphere microorganism)이라 하며 이들 미생물들 중 식물에게 이로운 작용을 하는 미생물을 식물성장 촉진 근권미생물 (plant growth promoting rhizobacteria, PGPR)이라 한다 [3]. |
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