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Quercetin and gamma-aminobutyric acid content and in vitro germination in pollen grains of Citrus species under different temperatures | ||
Journal of Plant Physiology and Breeding | ||
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 09 آذر 1401 | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22034/jppb.2022.49963.1258 | ||
نویسندگان | ||
Soheila Mohammadrezakhani ![]() | ||
1Ph.D. in Horticulture, Agriculture Jihad Organization, Southern Province of Kerman, Jiroft, Iran | ||
2Proffesor of Plant developmental Biology, Department of Biology, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran | ||
3Ph.D. student, Department of Plant Science, Facultuy of Biological Sciences, Kharazmi University, Tehran, Iran | ||
چکیده | ||
Environmental factors such as temperature have negative effects on the reproductive phase and can cause yield loss in Citrus species. Pollen grains play a key and essential role in fertility of plants. Quercetin and gamma-aminobutyric acid (GABA) are involved in certain biochemical functions to regulate the growth and increase the tolerance to biotic and abiotic stresses. The purpose of this study was to evaluate the effect of different temperatures on pollen germination and also the levels of quercetin and GABA. The branches containing flowers of Cirus reticulata, C. sinensis and C. paradisi were exposed to 5, 10, 15, 20, and 25 °C for six hours and then pollen grains were collected. Level of quercetin and GABA were quantified by HPLC. The amount of quercetin was highest at 5 °C and then decreasesd by increasing the temperature in all species. Also, with increasing temperature, the amount of GABA decreased in all species. The highest and lowest pollen germination were observed at 25 °C and 5 °C respectively. | ||
کلیدواژهها | ||
germination؛ low temperature؛ phenolic compounds؛ pollen؛ secondary metabolites | ||
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