Assessing the role in tolerance of the ATP synthase subunit II under abiotic stress in sugarcane

Author(s)

Thaís Helena Silva Ferreira

• Document type: Doctoral Thesis
• Press: Campinas, SP.
• Institution: Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia
• Defense date: 2016-08-31

Examining board members

Marcelo Menossi; Renato Vicentini; Monalisa Sampaio Carneiro; Paulo Mazzafera; Carlos Takeshi Hotta

• Advisor: Marcelo Menossi

Abstract

Sugarcane is one of the most important crop plants on the world. Among the various stresses that affect agricultural productivity, drought is the most limiting factor for plant growth. Thus, the development of new sugarcane cultivars that are tolerant to drought becomes an important focus of research. From microarray expression data, the gene that encodes a polypeptide with similarity to the II subunit of ATP synthase was selected and its role under abiotic stresses has been studied in tobacco (Nicotiana tabacum). Overexpression of this gene conferred tolerance to drought and salt stresses in transgenic tobacco. Considering the previous work done by our group, and the literature as regards on the possible role of the ATP synthase in increase tolerance to abiotic stresses, the goal of this work is to perform a functional study of the sugarcane gene that encodes the ATP synthase II subunit, by sugarcane transgenic plants overexpressing this gene and analyze the responses of these plants when subjected to periods of drought. We also bring an overview of the proteomic of sugarcane chloroplast under drought conditions and new insights in the regulation of photosynthesis under stress by differentially expressed chloroplast proteins (AU)

• FAPESP's process: 12/06908-1 - Assessing the role in tolerance of the ATP synthase ² subunit under abiotic stress in sugarcane.
• Grantee: Thaís Helena Silva Ferreira
• Support Opportunities: Scholarships in Brazil - Doctorate