تجاوز إلى المحتوى الرئيسي
User Image

Mohammed Nasser Alyemeni

Professor

Professor

كلية العلوم
Building 5 Floor G Office AB 43
المنشورات
مقال فى مجلة
2018

Melatonin Alleviates High Temperature-Induced Pollen Abortion in Solanum lycopersicum

Melatonin is a pleiotropic signal molecule that plays critical roles in regulating plant growth and development, as well as providing physiological protections against various environmental stresses. Nonetheless, the mechanisms for melatonin-mediated pollen thermotolerance remain largely unknown. In this study, we report that irrigation treatment with melatonin (20 mu M) effectively ameliorated high temperature-induced inactivation of pollen and inhibition of pollen germination in tomato (Solanum lycopersicum) plants. Melatonin alleviated reactive oxygen species production in tomato anthers under high temperature by the up-regulation of the transcription and activities of several antioxidant enzymes. Transmission electron micrograph results showed that high temperature-induced pollen abortion is associated with a premature degeneration of the tapetum cells and the formation of defective pollen grains with degenerated nuclei at the early uninuclear microspore stage, whilst melatonin protected degradation of organelles by enhancing the expression of heat shock protein genes to refold unfolded proteins and the expression of autophagy-related genes and formation of autophagosomes to degrade denatured proteins. These findings suggest a novel function of melatonin to protect pollen activity under high temperature and support the potential effects of melatonin on reproductive development of plants.
مجلة/صحيفة
MOLECULES
مزيد من المنشورات
publications

The fruits of eggplants have different shapes and sizes, which render them ideal for metabolic engineering. They can aid in increasing eggplant chlorogenic acid content, a critical nutrient. Among…

بواسطة Arpita Shankar, Prashant Kaushik, Mohammed Nasser Alyemeni, Saleh Alansi, Peerzada Yasir Yousuf
2023
تم النشر فى:
Journal of King Saud University-Science
publications

Soybean is a legume widely cultivated globally for its seeds, which are rich in oil and protein suitable for animal and human nutrition, and as a biofuel source. One of the main factors that…

بواسطة Breno Ricardo Serrão da Silva, Elaine Maria Silva Guedes Lobato, Leidy Alves dos Santos, Rodrigo Mendes Pereira, Bruno Lemos Batista, Mohammed Nasser Alyemeni, Parvaiz Ahmad, Allan Klynger da Silva Lobato
2023
تم النشر فى:
Agronomy
publications

Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.

بواسطة Cengiz Kaya, Ferhat Ugurlar, Muhammed Ashraf, Mohammed Nasser Alyemeni, Michael Moustakas, Parvaiz Ahmad
2023
تم النشر فى:
Plants