Screening of sugarcane germplasm against Sporisorium scitamineum and its effects on setts germination and tillering

Author:

Rajput Muhammad Aslam,Iqbal Owais,Syed Rehana Naz,Elsalahy Heba H.,Rajput Nasir Ahmed,Ahmad Sagheer,Khan Rizwan,Khanzada Muhammad Ali,Younas Muhammad Usama,Qasim Muhammad,Rizwana Humaira,Almaary Khalid S.,Iqbal Rashid,Lodhi Abdul Mubeen

Abstract

AbstractSugarcane smut is the most damaging disease that is present almost across the globe, causing mild to severe yield losses depending upon the cultivar types, pathogen races and climatic conditions. Cultivation of smut-resistant cultivars is the most feasible and economical option to mitigate its damages. Previous investigations revealed that there is a scarcity of information on early detection and effective strategies to suppress etiological agents of smut disease due to the characteristics overlapping within species complexes. In this study, 104 sugarcane cultivars were screened by artificial inoculation with homogenate of all possible pathogen races of Sporisorium scitamineum during two consecutive growing seasons. The logistic smut growth pattern and the disease intrinsic rate were recorded by disease growth curve. Variable levels of disease incidence i.e., ranging from 0 to 54.10% were observed among these sugarcane cultivars. Besides, pathogen DNA in plant shoots of all the cultivars was successfully amplified by PCR method using smut-specific primers except 26 cultivars which showed an immune reaction in the field trial. Furthermore, the plant germination and tillering of susceptible sugarcane cultivars were greatly influenced by pathogen inoculation. In susceptible cultivars, S. scitamineum caused a significant reduction in setts germination, coupled with profuse tillering, resulting in fewer millable canes. Correlation analysis demonstrated that there was a positive relationship between reduction in setts germination and increase in the number of tillers. The present study would be helpful for the evaluation of smut resistance in a wide range of sugarcane germplasm, especially from the aspects of setts germination and tillers formation, and it also screened out several excellent germplasm for potential application in sugarcane breeding.

Publisher

Springer Science and Business Media LLC

Reference44 articles.

1. Steindl, D., Martin, J., Abbott, E. & Hughes, C. 433–459 (Elsevier, 1961).

2. Lee-Lovick, G. Smut of sugarcane-Ustilago scitaminea. Rev. Plant Pathol. 57, 181–188 (1978).

3. Boin, R. A., Groenleer, M. L. & Sundelius, B. in 4th ECPR General Conference.

4. Croft, B. J., Berding, N., Cox, M. C., Bhuiyan, S. & Bruce, R. in Proceedings of the Australian Society of Sugar Cane Technologists. 125–134.

5. Magarey, R., Croft, B., Braithwaite, K. & James, A. in Proceedings of the International Symposium on Technologies to Improve Sugar Productivity in Developing Countries (IS-2006). 333–336.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3