TY  - JOUR
T1  - Alleviation of Salt-Induced Stress in Allium cepa L. by Exogenous Glycine Treatment
TT  - Dışsal Glisin Uygulamasıyla Allium cepa L.'da Tuz Teşvikli Stresin Hafifletilmesi
AU  - Çavuşoğlu, Dilek
PY  - 2019
DA  - November
DO  - 10.29233/sdufeffd.578557
JF  - Süleyman Demirel University Faculty of Arts and Science Journal of Science
PB  - Süleyman Demirel University
WT  - DergiPark
SN  - 1306-7575
SP  - 248
EP  - 255
VL  - 14
IS  - 2
LA  - en
AB  - Inthis study, the role of glycine on the mitotic index, chromosome aberrations, micronucleusfrequency as cytogenetic parametersand on the seed germination, radicle length, radicle number, fresh weightas physiological parameters in Allium cepa L. seeds exposed to saltnesswere studied. Salinity displayeda significant inhibitory effect on the seedling growth and seed germination of Allium cepa. Furthermore, salinityreduced significantly the mitotic index in A. cepa root tip cells and ascended number of chromosomal aberrationsand frequencyof micronucleus which is the simplestindicator, the most effective of cytological damage. On the other hand, the restricting effectsof salinity on the seed germination, mitotic activity, chromosomal aberrations and seedling growth were alleviated dramatically invarying degrees by glycine application, but glycine was ineffective in reducingof salt damage on the micronucleusfrequency.
KW  - Glycine
KW  - Seed germination
KW  - Seedling growth
KW  - Mitotic index
KW  - Chromosomal aberrations
KW  - Salt stress
N2  - Bu çalışmada, tuzluluğa maruz bırakılan Allium cepa L. tohumlarındakifizyolojik parametreler olarak tohum çimlenmesi,radikula uzunluğu, radikula sayısı, taze ağırlık ve sitogenetik parametreler olarak mitotik aktivite, kromozomal anormallikler vemikronükleus sıklığı üzerine glisinin rolü incelenmiştir. Tuzluluk A. cepa'nın tohum çimlenmesi ve fidebüyümesinde önemli bir inhibe edici etki göstermiştir. Dahası,tuz A. cepa’nın kök ucuhücrelerindeki mitotik indeksi önemli ölçüde düşürmüş ve sitolojik hasarın enbasit ve en etkili göstergesi olan mikronükleus sıklığı ve kromozomalanormalliklerin sayısını arttırmıştır. Buna karşılık, tohum çimlenmesi,mitotik aktivite, kromozomal anormallikler ve fide büyümesi üzerine tuzuninhibe edici etkileri glisin uygulamasıyla önemli ölçüde azalmış, fakatmikronükleus sıklığı üzerinde glisin tuz hasarının azaltılmasında yetersizkalmıştır.
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UR  - https://doi.org/10.29233/sdufeffd.578557
L1  - https://dergipark.org.tr/en/download/article-file/865267
ER  -