Strategy of tobacco plant against black shank and tobacco mosaic virus infection via induction of PR-1, PR-4 and PR-5 proteins assisted by medicinal plant extracts

• DOI: 10.1016/j.pmpp.2017.07.002
• Publication Date: 2017-07-15T02:00:37Z
• Authors: Ruoyan Wang; Shusheng Wang; Weidong Pan; Qingchang Li; Zhilin Xia; Ensen Guan; Mingqiang Zheng; Guozhi Pang; Yinjun Yang; Zhongjing Yi
• Keywords: 0301 basic medicine; 2. Zero hunger; 0303 health sciences; 03 medical and health sciences; 15. Life on land; 3. Good health

Abstract The purpose of this study was to explore the induction strategy of PR proteins in the host plant to overcome black shank and tobacco mosaic virus (TMV) infections, assisted by a mixed plant extract composed of Sophora flavescens, Forsythia suspense and other medicinal plants. To accomplish this, greenhouse experiments were conducted in non-continuously and continuously cropped land. In both types of land, plants treated with the plant extract alone or in combination with fungicides successfully grew even when infected. The superoxide dismutase activity of tobacco plants treated with the plant extract was higher than that of the control plants ( P P P