Deciphering Plantago ovata Forsk Leaf Extract Mediated Distinct Germination, Growth and Physio-Biochemical Improvements under Water Stress in Maize (Zea mays L.) at Early Growth Stage
| Autor: | Shafaqat Ali, Sajid Fiaz, Muhammad Hafeez Ullah Khan, Javaria Afzal, Shadab Shaukat, Muhammad Nawaz, Aamir Hamid Khan, Hasnain Ishaq, Nagina Rehman, Xiukang Wang, Sajjad Ali, Muhammad Hamzah Saleem |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
nutrient uptake Photosynthesis medicine.disease_cause 01 natural sciences Plantago ovata 03 medical and health sciences chemistry.chemical_compound antioxidant compounds medicine oxidative stress isabgol extract 030304 developmental biology 0303 health sciences biology Chemistry drought stress Agriculture biology.organism_classification APX Malondialdehyde Horticulture Seedling Catalase Germination agronomic crop biology.protein Agronomy and Crop Science Oxidative stress 010606 plant biology & botany |
| Zdroj: | Agronomy, Vol 11, Iss 1404, p 1404 (2021) Agronomy Volume 11 Issue 7 |
| ISSN: | 2073-4395 |
| Popis: | Use of Plantago ovata Forsk leaf (also known as blond plantain or isabgol) extract is a novel approach for ameliorating water stress in various agronomic crops such as maize (Zea mays L.). To examine the potential roles of P. ovata extract (0, 20 and 40%) in increasing seed germination, plant growth, photosynthetic measurements, stomatal properties, oxidative stress and antioxidant response, ions uptake and the relationship between studied parameters, we investigated the impacts of its short-term seed priming on Z. mays L. elite cultivar “Cimmyt-Pak” under a control environment and a water deficit stress environment (induced by PEG). It was evident that water deficit stress conditions induced a negative impact on plant growth, stomatal properties and ion uptake in different organs of Z. mays. The decrease in growth-related attributes might be due to overproduction of oxidative stress biomarkers, i.e., malondialdehyde (MDA) contents, hydrogen peroxide (H2O2) initiation, and electrolyte leakage (%), which was also overcome by the enzymatic antioxidants, i.e., superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) and non-enzymatic antioxidants, which increased under the water stress environment. However, seed priming with P. ovata extract positively increased germination rate and growth profile, and protected photosynthetic apparatus and stomatal properties by decreasing oxidative stress indicators and increasing activities of antioxidant compounds. Our results also depicted that the optimum concentration of P. ovata extract for Z. mays seedlings under water stress conditions was 20%, while a further increase in P. ovata extract (40%) induced a non-significant negative impact on growth and biomass of Z. mays seedling. In addition, the effect was more promising on Z. mays seedlings when grown under controlled conditions. Here, we concluded that the understanding of the role of seed priming with P. ovata extract in the increment of growth-related attributes, photosynthetic apparatus (Pn, Gs, Ts and Ci) and nutrient uptake (Ca2+, Fe2+, P and Mg2+) introduces new possibilities for their effective use in water deficit stress environments and shows a promising foundation for Z. mays tolerance against water deficit stress conditions. |
| Databáze: | OpenAIRE |
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