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SCI-Expanded JCR Q1 Özgün Makale Scopus
Hesperidin and chlorogenic acid mitigate arsenic-induced oxidative stress via redox regulation, photosystems-related gene expression, and antioxidant efficiency in the chloroplasts of Zea mays
Plant Physiology and Biochemistry 2024 Cilt 208 Sayı 108445
Scopus Eşleşmesi Bulundu
4
Atıf
208
Cilt
Scopus Yazarları: Evren Yildiztugay, Fevzi Elbasan, Busra Arikan, Ceyda Ozfidan-Konakci, Aysenur Tofan
Özet
The ubiquitous metalloid arsenic (As), which is not essential, can be found extensively in the soil and subterranean water of numerous nations, raising substantial apprehensions due to its impact on both agricultural productivity and sustainability. Plants exposed to As often display morphological, physiological, and growth-related abnormalities, collectively leading to reduced productivity. Polyphenols, operating as secondary messengers within the intricate signaling networks of plants, assume integral functions in the acquisition of resistance to diverse environmental stressors, including but not limited to drought, salinity, and exposure to heavy metals. The pivotal roles played by polyphenols in these adaptive processes underscore their profound significance in plant biology. This study aims to elucidate the impact of hesperidin (HP) and chlorogenic acid (CA), recognized as potent bioactive compounds, on maize plants exposed to As. To achieve this objective, the study examined the physiological and biochemical impacts, including growth parameters, photosynthesis, and chloroplastic antioxidants, of HP (100 μM) and CA (50 μM) on Zea mays plants exposed to arsenate stress (AsV, 100 μM - Na2HAsO4⋅7H2O). As toxicity led to reductions in fresh weight (FW) and dry weight (DW) by 33% and 26%, respectively. However, the application of As+HP and As + CA increased FW by 22% and 40% and DW by 14% and 17%, respectively, alleviating the effects of As stress. As toxicity resulted in the up-regulation of PSII genes (psbA and psbD) and PSI genes (psaA and psaB), indicating a potential response to the re-formation of degraded regions, likely driven by the heightened demand for photosynthesis. Exogenous HP or/and CA treatments effectively counteracted the adverse effects of As toxicity on the photochemical quantum efficiency of PSII (Fv/Fm). H2O2 content showed a 23% increase under As stress, and this increase was evident in guard cells when examining confocal microscopy images. In the presence of As toxicity, the chloroplastic antioxidant capacity can exhibit varying trends, with either a decrease or increase observed. After the application of CA and/or HP, a significant increase was observed in the activity of GR, APX, GST, and GPX enzymes, resulting in decreased levels of H2O2 and MDA. Additionally, the enhanced functions of MDHAR and DHAR have modulated the redox status of ascorbic acid (AsA) and glutathione (GSH). The HP or CA-mediated elevated levels of AsA and GSH content further contributed to the preservation of redox homeostasis in chloroplasts facing stress induced by As. In summary, the inclusion of HP and CA in the growth medium sustained plant performance in the presence of As toxicity by regulating physiological and biochemical characteristics, chloroplastic antioxidant enzymes, the AsA-GSH cycle and photosynthesis processes, thereby demonstrating their significant potential to confer resistance to maize through the mitigation of As-induced oxidative damage and the safeguarding of photosynthetic mechanisms.
Anahtar Kelimeler (Scopus)
Antioxidant system Arsenic toxicity Chlorogenic acid Chloroplasts Hesperidin Zea mays

Anahtar Kelimeler

Antioxidant system Arsenic toxicity Chlorogenic acid Chloroplasts Hesperidin Zea mays

Makale Bilgileri

Dergi Plant Physiology and Biochemistry
ISSN 0981-9428
Yıl 2024 / 3. ay
Cilt / Sayı 208 / 108445
Makale Türü Özgün Makale
Hakemlik Hakemli
Endeks SCI-Expanded
JCR Quartile Q1
TEŞV Puanı 36,00
Yayın Dili İngilizce
Kapsam Uluslararası
Toplam Yazar 5 kişi
Erişim Türü Basılı+Elektronik
Erişim Linki Makaleye Git
Alan Fen Bilimleri ve Matematik Temel Alanı Biyoloji Bitki Fizyolojisi Bitki Biyoteknoloji Biyokimya

YÖKSİS Yazar Kaydı

Yazar Adı Elbasan Fevzi,ARIKAN BÜŞRA,ÖZFİDAN KONAKÇI CEYDA,TOFAN AYŞENUR,YILDIZTUGAY EVREN
YÖKSİS ID 7817055

Metrikler

Scopus Atıf 4
JCR Quartile Q1
TEŞV Puanı 36,00
Yazar Sayısı 5