The role of silver ions in the regulation of the senescence process in  Triticum aestivum

Mert ÖKTEM; Yüksel KELEŞ

Makale detayları

The role of silver ions in the regulation of the senescence process in Triticum aestivum

Yazarlar:

Mert ÖKTEM | Yüksel KELEŞ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2018 Vol.42 Issue 6, pp.517-526

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000811169

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152

Özet:

 


                        The control of senescence has economic importance due to its effects on parameters such as herbal product quality and shelf
life. This study is on the control of induced senescence in Triticum aestivum L. `Gu?n-91' plants with silver nitrate (AgNO3) treatments. It was observed that some changes that occurred with dark and indole-1-acetic acid (IAA) treatments could be reduced with AgNO3
treatments. After dark-induced senescence, it was observed in plants that seedling length, relative water content (RWC), chlorophyll,
ß-carotene, xanthophylls, total antioxidant capacity, soluble phenol, total soluble protein, catalase (CAT), total superoxide dismutase
(SOD), copper-zinc superoxide dismutase (Cu/Zn-SOD) activities, and expression of genes encoding these enzymes declined. After
IAA treatments, seedling length, RWC, chlorophyll, ß-carotene, xanthophylls, total antioxidant capacity, soluble phenolics, and soluble
protein levels declined, whereas activities of CAT, total SOD, and Cu/Zn-SOD enzymes and expression of Cu/Zn-SOD and CAT genes
increased. AgNO3 (200 mg L-1 ) applied by spraying onto leaves led to an increase in seedling length, RWC, chlorophyll, ß-carotene, xanthophylls, total antioxidant capacity, soluble phenolics, soluble protein levels, and expression of Cu/Zn-SOD, CAT genes, CAT, SOD,
and Cu/Zn-SOD enzyme activities compared to controls. Findings obtained from this study showed that the senescence process was related to changes in the levels of antioxidant compounds and enzymes. It was defined that the role of silver ions in slowing senescence was related to antioxidant defense capacity.
                    

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Makale detayları

The role of silver ions in the regulation of the senescence process in Triticum aestivum

Yazarlar: Mert ÖKTEM | Yüksel KELEŞ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Biology 2018 Vol.42 Issue 6, pp.517-526

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000811169

Sıklık: İki Aylık

eISSN: 1303-6092

pISSN: 1300-0152

Sayı

Yazarlar:

Mert ÖKTEM | Yüksel KELEŞ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2018 Vol.42 Issue 6, pp.517-526

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000811169

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152