Exogenous ornithine is an effective precursor and the delta-ornithine amino transferase pathway contributes to proline accumulation under high N recycling in salt-stressed cashew leaves - Rocha, Iza Marineves Almeida; Vitorello, Victor Alexandre; Silva, Jamille Santos; Ferreira-Silva, Sérgio Luiz; Viégas, Ricardo Almeida; Silva, Evandro Nascimento; Silveira, Joaquim Albenísio Gomes da (Journal of Plant Physiology, 2012)