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فاطمة عليان ناصر العتيبي

Associate Professor

عضو هيئة تدريس-مديرة مركز بحوث الدراسات العلمية و الطبية -عضو مجلس إدارة الجمعية السعودية لعلوم الحياة

كلية العلوم
مبنى 5 الدور3 مكتب 5T 203- مبنى 30 ( الدور الأول ) مركز البحوث
المنشورات
مقال فى مجلة
2024

Silver nanoparticles improve the fungicidal properties of Rhazya stricta decne aqueous extract against plant pathogens

One of the most promising, non-toxic, and biocompatible developments for many biological activities is the green synthesis of nanoparticles from plants. In this work, we investigated the antifungal activity of silver nanoparticles (AgNPs) biosynthesized from Rhazya stricta aqueous extract against several plant pathogenic fungi. UV–visible spectroscopy, Zeta potential analysis, Fourier-transform infrared spectroscopy (FTIR), and transmitted electron microscopy (TEM) were used to analyze the biosynthesized AgNPs. Drechslera halodes, Drechslera tetramera, Macrophomina phaseolina, Alternaria alternata, and Curvularia australiensis were tested for their potential antifungal activity. Surface Plasmon Resonance (SPR) of Aq. AgNPs and Alkaline Aq. AgNPs was observed at 405 nm and 415 nm, respectively. FTIR analysis indicated hydroxyl, nitrile, amine, and ketone functional groups. Aq. AgNPs and Alka-line Aq. AgNPs had velocities of − 27.7 mV and − 37.9 mV and sizes of 21–90 nm and 7.2–25.3 nm, respectively, according to zeta potential studies and TEM. The antifungal examination revealed that all species' mycelial development was significantly inhibited, accompanied by severe ultra-structural alterations. Among all treatments, Aq. AgNPs were the most effective fungicide. M. phaseolina was statistically the most resistant, whereas A. alternata was the most vulnerable. To the best of our knowledge, this is the first report on R. stricta's antifungal activity against these species.

نوع عمل المنشور
مقالة علمية
رقم المجلد
14
مجلة/صحيفة
Scientific Reports
الصفحات
1297
مزيد من المنشورات
publications

One of the most promising, non-toxic, and biocompatible developments for many biological activities is the green synthesis of nanoparticles from plants. In this work, we investigated the…

بواسطة Al-Sahli, S.A., Al-Otibi, F., Alharbi, R.I. Amina M. & Al Musayeib N
2024
publications

Rhazya stricta is a major medicinal species used in indigenous medicinal herbal medications in South Asia, the Middle East, Iran, and Iraq to treat a variety of ailments. The current study aimed…

بواسطة Al-Otibi, Fatimah
2024
تم النشر فى:
https://doi.org/10.3390/nano14010088
publications

Plant diseases represent one of the major problems causing yield loss of tomato crops, especially root rot and seedling damping-off diseases caused by some phytopathogenic fungi like Fusarium…

بواسطة Al-Otibi, Fatimah, Alshahrani, Reem A., Alharbi, Raedah I. and Yassin, Mohamed Taha
2023