TaALMT1 functioning in a pH range

• Grant number: 16/00747-7
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: August 01, 2016
• End date: November 30, 2016
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Gustavo Habermann
• Grantee: Carolina de Marchi Santiago da Silva
• Supervisor: Peter Richard Ryan
• Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
• Institution abroad: CSIRO Agriculture, Australia
• Associated to the scholarship: 13/11370-3 - Gene expression on Al3+ tolerance mechanisms comparing a Cerrado species (Qualea grandiflora) and lime (Citrus limonia cv. 'Cravo'), BP.DR

Abstract

Under acidic conditions, malate efflux via TaALMT1 channel is induced by aluminum (Al) in wheat (Triticum aestivum L.). When Al is chelated with organic acids, the roots are allowed to grow normally, thus conferring great yields. Recent studies suggest that great yield in an Al-tolerant wheat line can also be reached under alkaline conditions by the same organic acid exsudation mechanism (via ALMT channel). Considering these opposite standpoints about TaALMT1, the aim of this study is to evaluate the functioning of this channel by assessing the malate efflux in root apices of wheat seedlings under a pH range (5 to 9) in different soil and nutrient solutions. (AU)