TY - JOUR
T1 - Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat
AU - Podar, Dorina
AU - Macalik, Kunigunda
AU - Réti, Kinga Olga
AU - Martonos, Ildikó
AU - Török, Edina
AU - Carpa, Rahela
AU - Weindorf, David C.
AU - Csiszár, Jolán
AU - Székely, Gyöngyi
N1 - Publisher Copyright:
© 2019, Prof. H.S. Srivastava Foundation for Science and Society.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Salt tolerance mechanisms of halophyte Petrosimonia triandra, growing in its natural habitat in Cluj County, Romania, were investigated via biomass, growth parameters, water status, ion content, photosynthetic and antioxidative system efficiency, proline accumulation and lipid degradation. Two sampling sites with different soil electrical conductivities were selected: site 1: 3.14 dS m−1 and site 2: 4.45 dS m−1. Higher salinity proved to have a positive effect on growth. The relative water content did not decline severely, Na+ and K+ content of the roots, stem and leaves was more, and the functions of the photosynthetic apparatus and photosynthetic pigment contents were not altered. The efficiency of the antioxidative defence system was found to be assured by coordination of several reactive oxygen species scavengers. The presence of higher salinity led to accumulation of the osmolyte proline, while degradation of membrane lipids was reduced. As a whole, P. triandra evolved different adaptational strategies to counteract soil salinity, including morphological and physiological adaptations, preservation of photosynthetic activity, development of an efficient antioxidative system and accumulation of the osmotic compound, proline.
AB - Salt tolerance mechanisms of halophyte Petrosimonia triandra, growing in its natural habitat in Cluj County, Romania, were investigated via biomass, growth parameters, water status, ion content, photosynthetic and antioxidative system efficiency, proline accumulation and lipid degradation. Two sampling sites with different soil electrical conductivities were selected: site 1: 3.14 dS m−1 and site 2: 4.45 dS m−1. Higher salinity proved to have a positive effect on growth. The relative water content did not decline severely, Na+ and K+ content of the roots, stem and leaves was more, and the functions of the photosynthetic apparatus and photosynthetic pigment contents were not altered. The efficiency of the antioxidative defence system was found to be assured by coordination of several reactive oxygen species scavengers. The presence of higher salinity led to accumulation of the osmolyte proline, while degradation of membrane lipids was reduced. As a whole, P. triandra evolved different adaptational strategies to counteract soil salinity, including morphological and physiological adaptations, preservation of photosynthetic activity, development of an efficient antioxidative system and accumulation of the osmotic compound, proline.
KW - Antioxidant
KW - Biomass
KW - Petrosimonia triandra
KW - Photosynthetic pigments
KW - Proline
KW - Salinity
UR - http://www.scopus.com/inward/record.url?scp=85074081712&partnerID=8YFLogxK
U2 - 10.1007/s12298-019-00697-x
DO - 10.1007/s12298-019-00697-x
M3 - Article
AN - SCOPUS:85074081712
SN - 0971-5894
VL - 25
SP - 1335
EP - 1347
JO - Physiology and Molecular Biology of Plants
JF - Physiology and Molecular Biology of Plants
IS - 6
ER -