HomeNahida Khangulu Aliyeva sa sa

Nahida Khangulu Aliyeva

 

 

Place of birth

Yenikend village, Salyan district, Azerbaijan

Date of birth

27.11.1981

Education

Baku State University

Scientific degree

PhD in Biology

Academic rank

 

Speciality code and title for PhD thesis

2406.02 – Biochemistry

Biochemical and ultrastructural characteristics of mesophyll and bundle sheath chloroplasts of maize (Zea mays L.) under normal and salt stress conditions

Total number of printed scientific publications

37

Number of scientific publications printed abroad

14

Number of papers published in journals indexed and abstracted in international databases

7

Number of patents and certificates of authorship

 

Staff training:

-          number of PhD

      

 

Key scientific achievements

The mesophyll (M) and bundle sheath (BS) chloroplasts of maize, a C4 plant, were comprehensively compared under normal and salt stress conditions for the first time. It was found that polypeptides associated with the PSII core antenna and the light-harvesting complex (28–24 kDa) were present in the membranes of both chloroplast types, although their intensity was lower in BS thylakoids. At higher salt concentrations (2% and 3% NaCl), the synthesis of apoproteins related to the PSII core (68 kDa) and the α- and β-subunits of the catalytic CF1 domain of the ATP synthase complex was inhibited in the thylakoid membranes of M chloroplasts. No significant changes were observed in the membrane system of BS thylakoids.

Fluorescence spectra (77 K) of M and BS chloroplasts exhibited maxima corresponding to chlorophylls in LHCII, PSII, and PSI complexes at 686, 695, and 735 nm, respectively, with the 695 nm maximum being weak in BS chloroplasts. Under normal conditions, the photochemical activity of PSII in BS chloroplasts was approximately five times lower than in M chloroplasts. The highest PSI activity was observed in BS chloroplasts, approximately 2.7 times higher than in M chloroplasts. At high salt concentrations, the granal structure of M chloroplasts were disrupted, whereas BS chloroplasts maintained their structure and even partially converted lamellar arrangements into granal structures.

During stress, an inverse correlation was observed between the activities of ascorbate peroxidase (APX) and catalase (CAT), enzymes involved in H₂O₂ scavenging. Analysis of the isoenzyme composition of antioxidant enzymes revealed five APX isoforms in M and one in BS, three SOD isoforms in M and one in BS, and one CAT isoform in BS. Unlike mesophyll cells, the intensity of isoforms in BS increased with salt concentration, indicating a higher salt tolerance of BS chloroplasts.

 

Titles of publications

1. Spectral and Functional Characteristics Of Chloroplasts İsolated From Mesophyll and Bundle Sheath Cells Of Maize. Transactions of the İnstitute of Molecular Biology & Biotechnologies, ANAS, 2017, vol. 1, p. 121-124.

2. Qarğıdalının mezofil və örtüktopa hüceyrələrindən ayrılmış xloroplastların spektral və funksional xassələri. Əkinçilik Elmi-Tədqiqat institutunun Elmi Əsərlər Məcmuəsi, Müəllim nəşriyyatı, 2018, cild. XXIX, səh. 223-227.

3.         Polypeptide Pattern of Mesophyll and Bundle Sheath Thylakoids of Maize Chloroplasts. Panas, ANAS, Special İssuse, 2018, vol. 73, No 2, p. 53-57.

4. The effect of salt (NaCl) stress on the ultrastructure of mesophyll and bundle sheath cell chloroplasts and the activity of superoxide dismutase in maize plants (Zea mays L.,). Journal of Life Sciences & Biomedicine, 2019 vol. 1(74), No 1, p. 94-102.

5. Effect of salt stress on growth, lipid peroxidation and antioxidant enzymes in leaves and roots of maize (Zea mays L.). Transactions of the İnstitute of Molecular Biology & Biotechnologies, Special issue, ANAS, 2019, vol. 3, p. 18-25.

6. The role of some non-enzymatic antioxidants in salt stressed maize leaves. Transactions of the Institute of Molecular Biology and Biotechnologies, 2020, 4, p. 24-28. Functional Plant Biology, – 2020. – 47(11), – p. 970-976.

7. The role of antioxidant defense systems in maize leaves under salt stress. Transactions of the İnstitute of Molecular Biology & Biotechnologies, Special issue, - 2023, vol. 7, p. 32-37.

8. Salt-induced changes in morpho-physiological and biochemical properties in Chickpea (Cicer Arietinum L.) seedlings. Transactions Institute Of Molecular Biology & Biotechnologies, Ministry Of Science And Education Republic Of Azerbaijan, 2024, vol. 8, № 1, p. 9—14.

9.         Comparative Analysis of Mesophyll and Bundle Sheath Chloroplasts from Maize Plants Subjected to Salt Stress. Biochemistry (Moscow), - 2025, 90 (4), 522-533.

10. Duz (NaCl) stresinin qarğidali (zea mays l.) bitkisinin inkişafina və xloroplast subhüceyrə fraksiyasinda fotosintetik piqmentlərin miqdarina təsiri. Azəbaycan Milli Elmlər Akademiyası Mərkəzi Nəbatat Bağının əsərləri, 2019, XVII cild, s. 41-46.

11. Activities of antioxidant enzymes in mesophyll and bundle sheath cell chloroplasts of maize plants (Zea mays L.) exposed to salt. Bulleten of Science and Practice, -2020, v.6. p. 47-56.

12. Biochemical properties and ultrastructure of mesophyll and bundle sheath thylakoids from maize (Zea mays L.) chloroplasts. Functional Plant Biology, – 2020. – 47(11), – p. 970-976.

13. Comparative Analysis of Mesophyll and Bundle Sheath Chloroplasts from Maize Plants Subjected to Salt Stress. Biochemistry (Moscow), - 2025, 90 (4), 522-533.

14. Salt induced Changes in Morpho-physiological Parameters and Ultrastructure of Roots in Maize Plants (Zea mays L.). Bulletin of Science and Practice -2025, Т. 11. №3. P. 20-31

 

Membership in national, international, and foreign scientific organizations

Member of The International Society of Photosynthesis Research (ISPR), Active member participating in the global community of researchers focused on photosynthesis and related scientific fields.

Pedagogical activity

 

Other activities

 

Awards and prizes

 

Place of work and its address

Institute of Molecular Biology, Ministry of Science and Education of the Republic of Azerbaijan.

Position

Senior Researcher

Office phone

 (+994 12) 538 11 64

Mobile

+994775804205

Home

 

Fax

 (+994 12) 510 24 33

E-mail

nahidaaliyeva@yahoo.com