Advanced search
1 file | 459.12 KB

Osmotic stress affects physiological responses and growth characteristics of three pistachio cultivars

Author
Organization
Abstract
Pistachio (Pistacia vera L.) has a high tolerance to drought and soil salinity. Although adult pistachio trees are well known to be drought tolerant, the studies on physiological adaptation of pistachio cultivars to drought are limited. Therefore, three pistachio cultivars, i.e., Akbari, Kaleghochi, and Ohadi were subjected to three osmotic drought stress treatments: control (-0.1 MPa), moderate (-0.75 MPa) and severe drought (-1.5 MPa) stress using PEG 6000 for a 14-day period. All drought stress treatments decreased net photosynthesis (Pn), stomatal conductance (gs), intercellular CO2 concentration (Ci), and transpiration rate (E), but Ohadi maintained better its photosynthetic capacity compared to Akbari and Kaleghochi. Maximum quantum yield of PSII photochemistry (Fv/Fm), effective PSII quantum yield (UPSII) and photochemical quenching (qP) were also reduced. The chlorophyll fluorescence parameters indicated that Akbari was more susceptible to the applied drought stress. Drought stress levels decreased chlorophyll pigments, fresh weight, stem elongation, leaf nitrogen content (N), leaf water potential and increased water use efficiency (WUE). Proline increased strongly under drought stress for Akbari. After 2 weeks of stress a recovery of 2 weeks was applied. This period was insufficient to fully restore the negative effects of the applied stress on the studied cultivars. Based on the reduction of photosynthesis and the increase of the proline content Akbari seems more sensitive to the applied drought stress.
Keywords
Proline, Fresh weight, Leaf water potential, Chlorophyll fluorescence, Photosynthesis, Pigments, WATER-USE EFFICIENCY, POLYETHYLENE-GLYCOL, DROUGHT STRESS, PLANTS, CROP YIELD, OXIDATIVE STRESS, NITROGEN-METABOLISM, MESOPHYLL LIMITATIONS, CHLOROPHYLL FLUORESCENCE, PHOTOSYNTHETIC GAS-EXCHANGE

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 459.12 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Esmaeilpour, Ali, Marie-Christine Van Labeke, Roeland Samson, and Patrick Van Damme. 2015. “Osmotic Stress Affects Physiological Responses and Growth Characteristics of Three Pistachio Cultivars.” Acta Physiologiae Plantarum 37 (6).
APA
Esmaeilpour, A., Van Labeke, M.-C., Samson, R., & Van Damme, P. (2015). Osmotic stress affects physiological responses and growth characteristics of three pistachio cultivars. ACTA PHYSIOLOGIAE PLANTARUM, 37(6).
Vancouver
1.
Esmaeilpour A, Van Labeke M-C, Samson R, Van Damme P. Osmotic stress affects physiological responses and growth characteristics of three pistachio cultivars. ACTA PHYSIOLOGIAE PLANTARUM. 2015;37(6).
MLA
Esmaeilpour, Ali et al. “Osmotic Stress Affects Physiological Responses and Growth Characteristics of Three Pistachio Cultivars.” ACTA PHYSIOLOGIAE PLANTARUM 37.6 (2015): n. pag. Print.
@article{5980402,
  abstract     = {Pistachio (Pistacia vera L.) has a high tolerance to drought and soil salinity. Although adult pistachio trees are well known to be drought tolerant, the studies on physiological adaptation of pistachio cultivars to drought are limited. Therefore, three pistachio cultivars, i.e., Akbari, Kaleghochi, and Ohadi were subjected to three osmotic drought stress treatments: control (-0.1 MPa), moderate (-0.75 MPa) and severe drought (-1.5 MPa) stress using PEG 6000 for a 14-day period. All drought stress treatments decreased net photosynthesis (Pn), stomatal conductance (gs), intercellular CO2 concentration (Ci), and transpiration rate (E), but Ohadi maintained better its photosynthetic capacity compared to Akbari and Kaleghochi. Maximum quantum yield of PSII photochemistry (Fv/Fm), effective PSII quantum yield (UPSII) and photochemical quenching (qP) were also reduced. The chlorophyll fluorescence parameters indicated that Akbari was more susceptible to the applied drought stress. Drought stress levels decreased chlorophyll pigments, fresh weight, stem elongation, leaf nitrogen content (N), leaf water potential and increased water use efficiency (WUE). Proline increased strongly under drought stress for Akbari. After 2 weeks of stress a recovery of 2 weeks was applied. This period was insufficient to fully restore the negative effects of the applied stress on the studied cultivars. Based on the reduction of photosynthesis and the increase of the proline content Akbari seems more sensitive to the applied drought stress.},
  articleno    = {123},
  author       = {Esmaeilpour, Ali and Van Labeke, Marie-Christine and Samson, Roeland and Van Damme, Patrick},
  issn         = {0137-5881},
  journal      = {ACTA PHYSIOLOGIAE PLANTARUM},
  keywords     = {Proline,Fresh weight,Leaf water potential,Chlorophyll fluorescence,Photosynthesis,Pigments,WATER-USE EFFICIENCY,POLYETHYLENE-GLYCOL,DROUGHT STRESS,PLANTS,CROP YIELD,OXIDATIVE STRESS,NITROGEN-METABOLISM,MESOPHYLL LIMITATIONS,CHLOROPHYLL FLUORESCENCE,PHOTOSYNTHETIC GAS-EXCHANGE},
  language     = {eng},
  number       = {6},
  pages        = {14},
  title        = {Osmotic stress affects physiological responses and growth characteristics of three pistachio cultivars},
  url          = {http://dx.doi.org/10.1007/s11738-015-1876-x},
  volume       = {37},
  year         = {2015},
}

Altmetric
View in Altmetric
Web of Science
Times cited: