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Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2026 / Cilt: 7 Sayı: 1

The Effects of Salinity on the Photosynthetic Performance of Red Seaweeds

Kırmızı Deniz Yosunlarının Fotosentetik Performansı Üzerine Tuzluluğun Etkileri

Gamze Yıldız
Şeyma Tiryaki
Pages
55–61
Publication Date
2017-03-31
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results indicated that, salinity signifcantly influenced photosynthetic performance of studied species.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Macroalgae living in the intertidal zone are exposed to a wide range of environmental stress, such as high light, desiccation, radiation, high temperature and salinity.
📊
Key Findings & Data:Therefore, this study performed to investigate the effect of salinity on photosynthetic performance of some red seaweeds.
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Conclusion & Impact:The results indicated that, salinity signifcantly influenced photosynthetic performance of studied species.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Klorofl floresansı · fotosentez · Rhodophyta

Abstract

Macroalgae living in the intertidal zone are exposed to a wide range of environmental stress, such as high light, desiccation, radiation, high temperature and salinity. Salinity stress is one of the most signifcant abiotic stresses and affects to vary aspect of macroalgae physiology. Therefore, this study performed to investigate the effect of salinity on photosynthetic performance of some red seaweeds. The samples were collected from southern region of the Marmara Sea and cultivated in different salinity concentration (23, 33 and 43 ppt). Photosynthetic performance of samples were determined by measuring variable chlorophyll fluorescence of photosystem II. The results indicated that, salinity signifcantly influenced photosynthetic performance of studied species. Maximum electron transfer rate in the all studied species except for Porphyra umbilicalis were reduced at 43 ppt salinity. The highest salinity tolerance was found at P. umbilicalis

Özet

İntertidal bölgede yaşayan deniz yosunları yüksek ışık, kuruma, radyasyon, yüksek sıcaklık ve tuzluluk gibi çevresel streslere büyük oranda maruz kalmaktadır. Tuzluluk en önemli abiyotik streslerden biridir ve birçok açıdan deniz yosunlarının fzyolojisini etkilemektedir. Bu nedenle, bu çalışma tuzluluğun bazı kırmızı deniz yosunlarında fotosentetik performans üzerine etkilerini belirlemek amacıyla yapılmıştır. Örnekler Marmara Denizi’nin güney kıyılarından toplanmış ve farklı tuz derişimlerinde (23, 33 ve 43 ppt) kültüre alınmıştır. Örneklerin fotosentetik performansı fotosistem II’nin değişen klorofl floresansının ölçülmesiyle belirlenmiştir. Elde edilen veriler çalışılan türlerde tuzluluğun fotosentetik performansı önemli ölçüde etkilediğini göstermiştir. 43 ppt’de Porphyra umbilicalis haricinde çalışılan bütün türlerin maksimum elektron transfer oranı azalmıştır. Tuzluluğa karşı en yüksek fotosentetik tolerans P. umbilicalis türünde bulunmuştur

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Cite This Article

Yıldız, G., Tiryaki, Ş. (2017). The Effects of Salinity on the Photosynthetic Performance of Red Seaweeds. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 7 Sayı: 1, 55–61. https://ajindex.com/articles/1273048

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