Boosting the resilience to drought of crop plants using wood distillate: A pilot study with lettuce (Lactuca sativa L.)

被引:3
作者
Ghorbani, Majid [1 ,2 ]
Azarnejad, Nazanin [1 ,2 ]
Carril, Pablo [1 ]
Celletti, Silvia [1 ]
Loppi, Stefano [1 ,3 ,4 ]
机构
[1] Univ Siena, Dept Life Sci, Siena, Italy
[2] Bangor Univ, Sch Environm & Nat Resources, Bangor, Wales
[3] Univ Naples Federico II, BAT Ctr, Interuniv Ctr Studies Bioinspired Agroenvironm Tec, Naples, Italy
[4] Univ Siena, BioAgry Lab, Siena, Italy
来源
PLANT STRESS | 2024年 / 12卷
关键词
Antioxidant activity; Lettuce; Stress response; Sustainable Agriculture; PYROLIGNEOUS ACID; ANTIOXIDANT; STRESS; QUALITY; GROWTH; YIELD;
D O I
10.1016/j.stress.2024.100450
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Increasingly severe drought driven by climate change is harming crop quality and productivity, making it crucial to find nature-based solutions like wood distillate (WD) to aid crops withstand these stressful conditions. This study investigated the effects of WD application on the growth and stress responses of lettuce (Lactuca sativa L.) under drought conditions. The experiment included periodic measurements of plant growth-related parameters and stress indices to evaluate the effectiveness of WD in mitigating drought-induced damage. The results showed a significant increase (13-26 %) in fresh biomass of the aboveground portion of lettuce treated with WD, indicating the potential of WD as a biostimulant to promote plant growth. In addition, treatment with WD led to a significant increase in total soluble protein content (14-28 %), showing a possible positive effect on protein synthesis. The enhancement of anti-radical activity (measured in terms of DPPH) following the application of WD up to 42 % reflected the ability of the plant to scavenge harmful reactive oxygen species and alleviate oxidative stress. The observed reduction (up to 19 % in comparison with control) in MDA content also confirmed the effectiveness of WD in protecting the integrity of plant cell membranes from oxidative damage. Despite the beneficial effects on anti-radical activity, the total content of the antioxidant compounds (phenols and flavonoids) decreased with the use of WD (5-14 %), most likely suggesting complex interactions between WD and the biosynthesis of these secondary metabolites. The study showed the positive effect of WD application on the growth and stress tolerance of lettuce plants under drought conditions. These results can provide new insights into sustainable agricultural practices and the potential application of WD as a nature-based and effective means to improve crop productivity, especially in water scarce areas.
引用
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页数:9
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