Efficacy of priming wheat (Triticum aestivum) seeds with a benzothiazine derivative to improve drought stress tolerance

被引:38
作者
AL-Huqail, Arwa Abdulkreem [1 ]
Saleem, Muhammad Hamzah [2 ]
Ali, Baber [3 ]
Azeem, Muhammad [4 ]
Mumtaz, Sahar [5 ]
Yasin, Ghulam [6 ]
Marc, Romina Alina [7 ]
Ali, Shafaqat [8 ,9 ]
机构
[1] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Biol, POB 84428, Riyadh 11671, Saudi Arabia
[2] Qatar Univ, Off Acad Res, Doha, Qatar
[3] Quaid I Azam Univ, Dept Plant Sci, Islamabad 45320, Pakistan
[4] Univ Bahrain, Coll Sci, Dept Biol, Zallaq, Bahrain
[5] Univ Educ, Dept Bot, Div Sci & Technol, Lahore 54770, Pakistan
[6] Bahauddin Zakariya Univ, Dept Bot, Multan 60800, Pakistan
[7] Univ Agr Sci & Vet Med Cluj Napoca, Fac Food Sci & Technol, Food Engn Dept, 3-5 Calea Mana Stur St, Cluj Napoca 400372, Cluj, Romania
[8] Govt Coll Univ, Dept Environm Sci & Engn, Allama Iqbal Rd, Faisalabad 38000, Pakistan
[9] China Med Univ, Dept Biol Sci & Technol, Taichung 40402, Taiwan
关键词
abiotic stress; antioxidants; benzothiazine derivative; crop yield; drought; food security; growth; Pakistan; reactive oxygen species; wheat; EXOGENOUS APPLICATION; SEEDLING GROWTH; SALINITY STRESS; SALICYLIC-ACID; L; PLANTS; SATIVA L; WATER; ATTRIBUTES; CULTIVARS; RESPONSES;
D O I
10.1071/FP22140
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
We evaluated the effects of different concentrations (0.05 and 0.15 mM) of a benzothiazine (BTh) derivative on wheat (Triticum aestivum L.) in normal (100% field water capacity, FWC) and drought (60% FWC) conditions. Various morphological and physiological characteristics, and the uptake of osmo-protectants and nutrients were measured under the two FWC conditions. Results show that the drought conditions significantly reduced plant growth, affected plant composition, reduced the concentrations of photosynthetic pigments and affected gaseous exchange attributes, stomatal behaviour, and uptake fluxes of essential nutrients, while increasing the contents of different osmo-protectants and enzymatic and non-enzymatic antioxidants to decrease the production of reactive oxygen species (ROS) within the cells/tissues. However, seed priming with BTh reduced water stress conditions by increasing plant growth and biomass, photosynthetic pigments, stomatal behaviour, different gaseous exchange attributes, and uptake fluxes of essential nutrients compared with unprimed plants. In addition, the plant has a strong antioxidant defense system, which further increased its activities under BTh derivative treatments, to scavenge ROS production and maintain cell turgor under water stress conditions. In conclusion, drought stress-induced oxidative stress and altered the growth of T. aestivum, whereas seed priming increased plant growth and antioxidant production by improving the plant tolerance to drought. We suggest that seed priming with a BTh derivative as an effective priming technique in T. aestivum for reducing drought stress tends to benefit a grower in terms of better growth to fulfil the market demand for food cereals.
引用
收藏
页码:915 / 931
页数:17
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