Research in Plant Disease 2004;10(1):34-38.
Published online March 30, 2004.
보리호위축병 (Barley yellow mosaic virus)에 의한 보리의 생육 피해 및 세포학적 변화
박종철, 이재동, 서재환, 김양길, 정선기, 김형무
 
Growth Damage and Alteration of Cellular Tissue of Barley Infected by Barley yellow mosaic virus
Jong Chul Park, Jae Dong Lee, Jae Hwan Seo, Yang Kil Kim, Seon Gi Jeong, Hyung Moo Kim
Abstract
The damage of plant growth and alteration of cellular tissues of barley infected by Barley yellow mosaic virus (BaYMV) was explored. The infected plots significantly damaged in all of measured factors by the disease. In severely diseased plant, the viral infection affected on plant growth like as shorten culm length about 25cm, 36% constrained ratio, comparing to healthy. The yield decreased over 70% in diseased plots by fewer numbers of spike and kernel per square meter and spike, respectively. BaYMV constructed typical inclusion body like a pinwheel type inside barley leaves, and the infection affected on cellular elongation or growth not cell division in examined three parts as stem, neck of panicle and node, related to dwarfness of infected barley. The stem tissues were most severely affected on cell growth as restrained epidermis cell length in diameter and vascular bundle size. In neck of panicle tissues, distribution and size of tissues of fiber and cortex parts, respectively, showed differences between healthy and infected plants. In node part, healthy plant showed bigger tissue size as 1.5 times than infected plant. Theses results suggest that BaYMV infection could affect on the cell growth not cell division, and which resulted shorten culm length in plant growth and decreased yield, finally.
Key Words: BaYMV, Celular alteration, Growth damage, Plant tissue
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