Abstract
Physiological Responses to Drought Stress in Jatropha curcas Seedlings
Highlights
The biofuel production from Jatropha curcas L. plantation has been considered by industries, policy makers and researchers as a possible way to implement the development, in arid and semi-arid regions of developing countries [13]
In a recent study Tominaga et al [20] found that J. curcas is able to preserve the integrity of photosythem II (PSII), when stomata are closed under drought conditions, and to regulate thermal dissipation, adjusting PSII quantum efficiency to capacity of CO2 fixation
In this study we aimed to investigate both the mechanisms of J. curcas seedling resistance to drought and the possible influence of seedling age on it
Summary
The biofuel production from Jatropha curcas L. plantation has been considered by industries, policy makers and researchers as a possible way to implement the development, in arid and semi-arid regions of developing countries [13]. Despite the extraordinary increase of J. curcas cultivation areas in the last twenty years, the scientific community has begun only recently to investigate J. curcas responses to limited water availability conditions in terms of biomass production and partitioning, plant-water relationships, leaf gas exchange, and osmotic adjustment [6,7,8,9,10,11,12,13,14,15,16,17,18]. Drought resistance of J. curcas is associated with its ability to maintain water in leaf and root tissues, effectively combining osmotic adjustment with stomatal control mechanisms, in order to allow a continuous growth [10,16]. J. curcas root architecture facilitates the exploration of deeper soil horizons, allowing a better water access [21]
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