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2020 Vol.65, Issue 4 Preview Page
Effect of Zebularine Soaking on the Early Growth Stage and Mitotic Chromosomes of Barley (Hordeum vulgare L.)

제부라린의 침종처리가 보리 생육초기 생장 및 체세포 염색체에 미치는 영향

Ji-Yoon Han1
,
Seong-Wook Kang2
,
JaeBuhm Chun3
,
Yang-Kil Kim3
,
Young-Mi Yoon3
,
Seong-Woo Cho4*
한 지윤1
,
강 성욱2
,
전 재범3
,
김 양길3
,
윤 영미3
,
조 성우4*
1Student, Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology
2Researcher, Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology
3Junior Researcher, National Institute of Crop Science, Rural Development Administration
4Professor, Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology
1경남과학기술대학교 농학한약자원학부 학생
2경남과학기술대학교 농학한약자원학부 연구원
3농촌진흥청 국립식량과학원 농업연구사
4경남과학기술대학교 농학한약자원학부 교수
*Corresponding Author
1 December 2020. pp. 399-405
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Abstract

The objective of this study was to identify the effect of zebularine soaking on the early growth stage of barley (Hordeum vulgare L.). Hence, root elongation was measured daily according to the different concentrations of zebularine (1.0, 2.5, 5.0, and 10.0 μM) for 4 days. On the first day, root length at 2.5 and 5.0 μM was significantly longer than that in the non-treated control. On the second day, root length was not significantly different among all concentrations and controls. On the third day, root elongation was suppressed by the effect of zebularine, except at 2.5 μM. The treatment time of zebularine accounted for the largest proportion of the variation in root elongation. After transplanting, plant growth velocity was similar to that of the control; however, plants at 2.5 μM showed faster growth velocity than that of the other concentrations and the control. In the metaphase of mitosis, most chromosomes of cells under zebularine treatment were ordinary regardless of the concentration, while some cells with short chromosomes were investigated at around 2%. The short chromosome showed a centromere. In addition, it showed short and long arms based on the centromere. The lengths of the short and long arms were different for each short chromosome. It is necessary to study the effect of the short chromosome as a chromosomal function on plant growth and phenotype through investigation of meiosis and fertilization at the chromosome level.

Keywords
barley
cytidine analog
short chromosome
zebularine
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Information
  • Publisher :The Korean Society of Crop Science
  • Publisher(Ko) :한국작물학회
  • Journal Title :The Korean Journal of Crop Science
  • Journal Title(Ko) :한국작물학회지
  • Volume : 65
  • No :4
  • Pages :399-405
  • Received Date : 2020-09-22
  • Revised Date : 2020-10-27
  • Accepted Date : 2020-10-28
  • DOI :https://doi.org/10.7740/kjcs.2020.65.4.399
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