Naslov
Response of dihaploid tobacco roots to salt stress

Autori
Marček, Tihana ; Vidaković-Cifrek, Željka ; Tkalec, Mirta ; Ježić, Marin ; Mirna Ćurković- Perica, Mirna

Izvornik
Acta botanica Croatica (0365-0588) 76 (2017), 1; 49-54

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
antioxidative enzymes ; Nicotiana tabacum L. ; proline ; root ; salinity ; tobacco dihaploid lines

Sažetak
Salinity is a common abiotic factor that affects plant growth and development. Seedlings of tobacco (Nicotiana tabacum L.) F1 hybrid DH10 and three dihaploid lines (207B, 238C and 239K) obtained by diploidization of anther- derived haploids of hybrid DH10 were subjected to 0, 100 and 200 mM NaCl in in vitro conditions for 33 days and the effect on roots was evaluated. In all lines and in the hybrid DH10 exposed to 200 mM NaCl evident root growth inhibition and increased proline content were noticed. However, in some cases lines differed in the activity of antioxidative enzymes, which could account for differences in their salinity tolerance. Increased activity of catalase and peroxidase in roots of line 239K could contribute to the more pronounced salinity tolerance previously reported for shoots of this line.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Biotehnologija

POVEZANOST RADA