Journals / Ege Üniversitesi Ziraat Fakültesi Dergisi / 2022 / Cilt: 59 - Sayı: 3

Isolation of ascorbate peroxidase (APX) gene in lentil (Lens culinaris Medik.) and expression analysis under drought stress conditions

Pages
439–447
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: From the study conducted, it was concluded that time-dependent changes of the expression of LcAPX gene indicates that LcAPX gene had a highly specific gene expression profile and complex regulation in lentil drought response.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The objective of this study was to isolate partial cDNA that belongs to the ascorbate peroxidase (APX) gene of lentil (Lens culinaris Medik.) and to express LcAPX gene in lentil seedlings under drought stress conditions.
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Key Findings & Data:Material and Methods: To identify the relationships between drought stress and LcAPX gene expression, lentil seedlings grown for 2 weeks were subjected to drought stress through not irrigating for 6, 13, and 20 days.
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Conclusion & Impact:Conclusion: From the study conducted, it was concluded that time-dependent changes of the expression of LcAPX gene indicates that LcAPX gene had a highly specific gene expression profile and complex regulation in lentil drought response.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Askorbat peroksidaz · kuraklık stresi · gen ekspresyonu

Abstract

Objective: The objective of this study was to isolate partial cDNA that belongs to the ascorbate peroxidase (APX) gene of lentil (Lens culinaris Medik.) and to express LcAPX gene in lentil seedlings under drought stress conditions. Material and Methods: To identify the relationships between drought stress and LcAPX gene expression, lentil seedlings grown for 2 weeks were subjected to drought stress through not irrigating for 6, 13, and 20 days. Effects of drought stress were determined by measuring the stem relative water content (RWC). Gene expression changes in lentil seedlings were determined with real-time RT-qPCR. Results: The LcAPX gene expression levels of both drought-tolerant Firat-87 and drought-sensitive Ozbek cultivars varied with the severity of drought stress. The gene expression of LcAPX reached the highest level in Firat-87 cultivar on the 6th day, whereas a significant increase was observed only on the 20th day of the Ozbek cultivar, and this increase was relatively low as compared to the Fırat-87 cultivar. Conclusion: From the study conducted, it was concluded that time-dependent changes of the expression of LcAPX gene indicates that LcAPX gene had a highly specific gene expression profile and complex regulation in lentil drought response.

Özet

Amaç: Bu çalışmada, mercimekte (Lens culinaris Medik.) askorbat peroksidaz (APX) geninin partial cDNA klonu izole edilmiş ve LcAPX geninin kuraklık stresi koşullarında mercimek fidelerinde değişen gen ifadesi seviyesi belirlenmiştir. Materyal ve Yöntem: Kuraklık stresi ve LcAPX gen ifadesi arasındaki ilişkiyi anlamak için, 2 hafta süre ile yetiştirilen mercimek fidelerine 6, 13 ve 20 gün süre ile sulamama şeklinde kuraklık stresi uygulanmıştır. Kuraklık stresinin etkileri, sap nispi nem içeriği (RWC) ölçülerek belirlenmiştir. Mercimek fidelerinde meydana gelen gen ifadesi değişimleri eş zamanlı kantitatif PCR (Real-time qPCR) ile belirlenmiştir. Araştırma Bulguları: Hem kuraklığa dayanıklı Fırat-87 hem de kuraklığa duyarlı Özbek çeşitlerinin LcAPX gen ekspresyon seviyeleri, kuraklık stresinin şiddetine göre değişiklik göstermiştir. LcAPX gen ekspresyonu Fırat-87 çeşidinde 6. günde en yüksek seviyeye ulaşırken, Özbek çeşidinin sadece 20. gününde önemli bir artış gözlenmiş ve bu artış Fırat-87 çeşidine göre nispeten düşük kalmıştır. Sonuç: Sonuç olarak, LcAPX geninin ekspresyonunun gün bazında değişmesi, LcAPX geninin mercimeğin kuraklığa tepkisinde oldukça spesifik bir gen ekspresyon profiline ve karmaşık bir regülasyona sahip olduğunu göstermektedir.

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Cite This Article

BAKIR, M., YILDIRIM, C. (2022). Isolation of ascorbate peroxidase (APX) gene in lentil (Lens culinaris Medik.) and expression analysis under drought stress conditions. Ege Üniversitesi Ziraat Fakültesi Dergisi, Cilt: 59 - Sayı: 3, 439–447. https://ajindex.com/articles/496432

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References (7)

  1. Akbudak, M.A., E. Filiz, R. Vatansever & K. Kontbay, 2018. Genome-wide identification and expression profiling of ascorbate peroxidase (APX) and glutathione peroxidase (GPX) genes under drought stress in sorghum (Sorghum bicolor L.). Journal of Plant Growth Regulation, 37 (3): 925-936.
  2. Aksoy, E., 2008. Effect of Drought and Salt Stresses on The Gene Expression Levels of Antioxidant Enzymes in Lentil (Lens culinaris M.) Seedlings. University of Middle East Technical, (Unpublished) Master Thesis, Ankara, 207 pp. Arumuganathan, K. & E.D. Earle, 1991. Nuclear DNA content of some important plant species. Plant Molecular Biology Reporter, 9 (3): 208-218.
  3. Aslan, H., 2014. Effect of Chemical Foliar Application to Reduce Harvest Losses due to Pod Drop and Shatter in Red Lentil. Harran University, (Unpublished) Master Thesis, Şanlıurfa, 41 pp. Bahl, P.N., S. Lal & B.M. Sharma, 1993. “An overview of the production and problems in southeast Asia”. In: Proceedings of the seminar on lentils in South Asia. (Eds. W. Erskine & M.C. Saxena). ICARDA. Aleppo, Syria 236 pp. Bakır, M., 2019. Determination of Lentil (Lens culinaris M.) DEHYDRATION RESPONSIVE ELEMENT-BINDING2A (DREB2A) Gene Expression under Drought Stress Conditions. Journal of Agriculture Faculty of Ege University, 56 (2): 181-185. Barnabás, B., K. Jäger, & A. Fehér, 2008. The effect of drought and heat stress on reproductive processes in cereals. Plant, Cell & Environment, 31 (1): 11-38.
  4. Bartwal, A. & S. Arora, 2017. Drought stress-induced enzyme activity and mdar and apx gene expression in tolerant and susceptible genotypes of Eleusine coracana (L.). In Vitro Cellular & Developmental Biology-Plant, 53 (1): 41-49.
  5. Cao, S., X.H. Du, L.H. Li, Y.D. Liu, L. Zhang, X. Pan, Y. Li, H. Li & H. Lu, 2017. Overexpression of Populus tomentosa cytosolic ascorbate peroxidase enhances abiotic stress tolerance in tobacco plants. Russian Journal of Plant Physiology, 64 (2): 224-234.
  6. Ceritoğlu, M., 2019. The Effect of Vermicompost Applied at Different Sowing Dates on Yield and Yield Components in Lentil (Lens Culinaris Medik.). Siirt University, (Unpublished) Master Thesis, Siirt,102 pp. Çevik, S. & S. Ünyayar, 2015. The effects of exogenous application of ascorbate and glutathione on antioxidant system in cultivated Cicer arietinum and wild type C. reticulatum under drought stress. Journal of Natural & Applied Sciences, 19 (1): 91-97.
  7. Chen, G.X. & K., Asada, 1989. Ascorbate peroxidase in tea leaves: occurrence of two isozymes a