Effects of ozone on cell organelles of alfalfa (Medicago sativa L.) seedlings
المؤلفون المشاركون
Salih, Ibrahim A. S.
al-Zaydi, Muhammad
al-Muslim, Abd al-Rahman
Duayji, Abd Allah
Yaqut, Subhi M.
Shair, Umar
al-Sahli, Abd al-Aziz Abd Allah
Arif, Ibrahim Abd al-Wahid
المصدر
Saudi Journal of Biological Sciences
العدد
المجلد 27، العدد 1 (31 يناير/كانون الثاني 2020)، ص ص. 60-66، 7ص.
الناشر
تاريخ النشر
2020-01-31
دولة النشر
السعودية
عدد الصفحات
7
التخصصات الرئيسية
الموضوعات
الملخص EN
Seedlings of alfalfa (Medicago sativa L.) were exposed to different concentrations of atmospheric ozone (20–30 (control), 40–60, 65–80, and 85–120 ppb) in four distinct areas in the Riyadh region, so as to decide how ozone affected some of the seedling cellular organelles.
Results acquired utilizing transmission electron microscopy demonstrated certifiable impacts to exist on the cell organelles in the tissues of both the leaf mesophyll and stem cortex; contrasted with control plants, the chloroplasts seemed enlarged, irregular, different sizes, decomposed, and possibly dissolved, while the plastoglobules seemed deformed, more widely spaced, and enlarged, also the vacuoles contained no clear non-living components.
Moreover, some parts of the cytoplasmic membranes were ruptured, with only a few vesicles created at all concentrations, particularly in plants exposed to concentrations of 65–80 and 85–120 ppb, while no effects were noted in these organelles in control plants or plants exposed to 40–60 ppb.
High concentrations (85–120 ppb) led to enlarged, irregularly shaped nuclei and chromatin intensification; however, no clear effects of ozone were noted on the shapes of chloroplast starch grains or the mitochondria in leaf mesophyll and cortex cells in the stem.
The high ozone concentrations can cause negative effects on the growth of alfalfa seedlings, leading to imbalances in their vital functions and acceleration of aging, thus potentially decreasing the total plant yield.
The discoveries hence propose that alfalfa plants should not be planted near polluted areas, and that they can be utilized as bioindicators of air pollution by ozone.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Zaydi, Muhammad& al-Muslim, Abd al-Rahman& al-Sahli, Abd al-Aziz Abd Allah& Duayji, Abd Allah& Yaqut, Subhi M.& Arif, Ibrahim Abd al-Wahid…[et al.]. 2020. Effects of ozone on cell organelles of alfalfa (Medicago sativa L.) seedlings. Saudi Journal of Biological Sciences،Vol. 27, no. 1, pp.60-66.
https://search.emarefa.net/detail/BIM-920457
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Zaydi, Muhammad…[et al.]. Effects of ozone on cell organelles of alfalfa (Medicago sativa L.) seedlings. Saudi Journal of Biological Sciences Vol. 27, no. 1 (Jan. 2020), pp.60-66.
https://search.emarefa.net/detail/BIM-920457
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Zaydi, Muhammad& al-Muslim, Abd al-Rahman& al-Sahli, Abd al-Aziz Abd Allah& Duayji, Abd Allah& Yaqut, Subhi M.& Arif, Ibrahim Abd al-Wahid…[et al.]. Effects of ozone on cell organelles of alfalfa (Medicago sativa L.) seedlings. Saudi Journal of Biological Sciences. 2020. Vol. 27, no. 1, pp.60-66.
https://search.emarefa.net/detail/BIM-920457
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 65-66
رقم السجل
BIM-920457
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر