Free Proline Accumulation in Sapwood, Bark and Leaves of Three Evergreen Sclerophylls and a Comparison with an Evergreen Conifer

A greenhouse investigation of responses to different water stress regimes of Laurus nobilis trees from two climatic regions

“…2) and determination of J 100 P from pressure-volume curves (Table 2) demonstrated that Algeria exhibited a higher ability than Tunisia to reduce its internal osmotic potential. Drought-induced proline accumulation is a well known response which has been reported in a huge number of plant species (Hare et al, 1998 and references therein), including L. nobilis (Dimantoglou and Rhizopoulou, 1992). We demonstrate, however, that one of the considered populations of L. nobilis (Tunisia; Fig.…”

Aridity promotes differences in proline and phytohormone levels in Pinus pinaster populations from contrasting environments

“…Evidence of higher proline accumulation in leaves of P. halepensis during the driest months was reported by Diamantoglou and Rhizopoulou (1992) and after the drought treatment of Populus cathayana populations by Xiao et al (2008). However, the differences at the family level were not significant in Eucaliptus sp.…”

A study on functional and structural traits of the nocturnal flowers of Capparis spinosa L.

“…Solutes and water can be exchanged between tissues, to meet the requirements of reproductive tissues. In petals, free proline content was 20-fold lower than in leaves of caper, and ten-fold higher than in leaves of the majority of species growing in the same environment Diamantoglou and Rhizopoulou, 1992), probably contributing to water uptake and stabilizing subcellular structure (Hare et al, 1999). Also, C. spinosa grows in a nutrientpoor habitat and proline may be transferred from floral to reproductive tissues, as long as flower parts remain viable Taylor, 1996).…”