Chitosan application in the induction of water deficit tolerance in maize plants

Almeida, Lorena Gabriela; Magalhães, P. C.; Karam, D.; Silva, Eder Marcos da; Alvarenga, Amauri Alves de

doi:10.4025/actasciagron.v42i1.42463

Cited by 17 publications

(7 citation statements)

References 19 publications

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“…In measurements on maize, RWC in plants treated with chitosan 140 mg L −1 for 15 days of drought conditions remained at the same level as in irrigated plants. At lower chitosan concentrations, a reduction in RWC during drought was recorded compared to well-watered plants [101]. The positive effect of chitosan on increasing RWC under drought conditions was also observed in experiments on rice [84].…”

Section: Relative Water Content (Rwc)supporting

confidence: 56%

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The Potential of Using Chitosan on Cereal Crops in the Face of Climate Change

Kocięcka

Liberacki

2021

Plants

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This review presents the main findings from measurements carried out on cereals using chitosan, its derivatives, and nanoparticles. Research into the use of chitosan in agriculture is growing in popularity. Since 2000, 188 original scientific articles indexed in Web of Science, Scopus, and Google Scholar databases have been published on this topic. These have focused mainly on wheat (34.3%), maize (26.3%), and rice (24.2%). It was shown that research on other cereals such as millets and sorghum is scarce and should be expanded to better understand the impact of chitosan use. This review demonstrates that this chitosan is highly effective against the most dangerous diseases and pathogens for cereals. Furthermore, it also contributes to improving yield and chlorophyll content, as well as some plant growth parameters. Additionally, it induces excellent resistance to drought, salt, and low temperature stress and reduces their negative impact on cereals. However, further studies are needed to demonstrate the full field efficacy of chitosan.

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Section: Relative Water Content (Rwc)supporting

confidence: 56%

“…In a study on maize, foliar application of chitosan 140 mg L −1 was found to cause a decrease in gs. Thus it acts as an antiperspirant, without negatively affecting the P N and the Ci [101].…”

Section: Gas Exchangementioning

confidence: 98%

The Potential of Using Chitosan on Cereal Crops in the Face of Climate Change

Kocięcka

Liberacki

2021

Plants

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“…The role of Chitosan on decreasing MDA and H 2 O 2 contents might be proposed that CHT receptors are present on the plasma membrane; however, through a signaling cascade, the chloroplast is the primary CHT action organelle (Hadwiger 2013). Charge-charge interactions between positively charged CHT amine groups and negatively charged phospholipids promote a signal that will lead to the octadecanoid pathway activation; this metabolic pathway is directly related to the decreased H 2 O 2 formation (Pichyangkura and Chadchawan 2015; Almeida et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Attenuation of negative effects of saline stress in wheat plant by chitosan and calcium carbonate

Sadak

Talaat

2021

Bull Natl Res Cent

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Background Chitosan and Ca+ are natural signal molecules that can be used in agriculture as biostimulants and elicitors. They enhance different physiological responses and mitigate the negative effects of salinity. So, this investigation was done to study the effect of soaking wheat grains in chitosan and CaCO3 (20 and 40 mg/L) on alleviating the adverse effect of salinity stress (0.0 and 5000 mg/L) on growth, some biochemical and physiological and yields of wheat plant. Results Shoot length (cm), leaves no/tiller, shoot dry weight (g), root fresh weight (g) and root dry weight (g) were significantly decreased as a result of salt stress. Soaking wheat grains in Chitosan or CaCO3 significantly promoted plant growth under normal and stressed conditions. Irrigation of wheat plants with saline water significantly decreased photosynthetic pigments (Chlo-a, Chlo-b, carotenoids and total pigments) in addition to Chlo-a/Chlo-b ratio, indole acetic acid content in the plant leaves. Meanwhile, saline water significantly increased phenolics, total soluble sugars (TSS) and proline content. H2O2 and lipid peroxidation expressed by malondialdehyde (MDA) content clearly showed significant increases under salinity stress compared with untreated control. Soaking wheat grains in chitosan or CaCO3 before sawing significantly increased the accumulation of H2O2 and MDA in the leaves of wheat plants. Treatment of wheat grains with chitosan or CaCO3 significantly promoted the activity of various antioxidant enzymes (SOD and POX) as compared to the control. CAT activity was significantly decreased as a result of chitosan or CaCO3 treatments. The highest CAT activity was recorded in plants irrigated with 5000 mg/L saline water followed by control plants which recoded 36.40 and 24.82 U/min/g FW, respectively. On the other hand, irrigation of wheat plants with 5000 mg/L saline water significantly decreased spike length (cm), spikelets no/spike, grains wt/plant (g), 1000-grains wt (g), yield and biomass/plant (g) as well as, carbohydrate % and protein % compared with the control. However, treating wheat plants either with Chitosan or calcium carbonate resulted in obvious significant increases in carbohydrates and protein contents, especially in plants treated with 40 mg/L chitosan followed by 40 mg/L calcium carbonate. Soaking wheat grains in chitosan, especially at 40 mg/L, exhibited the strongest scavenging potential (2,2-diphenyl-1-picryl-hydrazyl-hydrate assay (DPPH%) followed by treatment with 40 mg/L CaCO3. Conclusion In conclusion, the used treatment enhanced the protective parameters such as antioxidant enzymes, total phenols and free radical scavengers and consequently helped the plants to decrease lipid peroxidation, increased their tolerance and improved yield and spike quality. Application of 40 mg/L chitosan recorded the highest increment in the scavenging ability of the natural antioxidants of the plant extract toward the stable free radical DPPH.

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“…Similarly, Behboudi et al [ 15 ] reported that treatment of drought-stressed Hordeum vulgare with 90 ppm of CNPs increased RWC by 1.57 times compared to the control sample. Other investigators have also shown the positive effect of CNPs on improving RWC in Trifolium repens [ 45 ] and Z. mays [ 46 ] under DS conditions.…”

Section: Discussionmentioning

confidence: 98%

Chitosan nanoparticles improve physiological and biochemical responses of Salvia abrotanoides (Kar.) under drought stress

et al. 2022

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Background The use of organic nanoparticles to improve drought resistance and water demand characteristics in plants seems to be a promising eco-friendly strategy for water resource management in arid and semi-arid areas. This study aimed to investigate the effect of chitosan nanoparticles (CNPs) (0, 30, 60 and 90 ppm) on some physiological, biochemical, and anatomical responses of Salvia abrotanoides under multiple irrigation regimes (30% (severe), 50% (medium) and 100% (control) field capacity). Results The results showed that drought stress decreases almost all biochemical parameters. However, foliar application of CNPs mitigated the effects caused by drought stress. This elicitor decreased electrolyte conductivity (35%), but improved relative water content (12.65%), total chlorophyll (63%), carotenoids (68%), phenol (23.1%), flavonoid (36.4%), soluble sugar (58%), proline (49%), protein (45.2%) in S. abrotanoides plants compared to the control (CNPs = 0). Furthermore, the activity of antioxidant enzymes superoxide dismutase (86%), polyphenol oxidase (72.8%), and guaiacol peroxidase (75.7%) were enhanced after CNPs treatment to reduce the effects of water deficit. Also, the CNPs led to an increase in stomatal density (5.2 and 6.6%) while decreasing stomatal aperture size (50 and 25%) and semi-closed stomata (26 and 53%) in leaves. Conclusion The findings show that CNPs not only can considerably reduce water requirement of S. abrotanoides but also are able to enhance the drought tolerance ability of this plant particularly in drought-prone areas. Graphical abstract

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Chitosan application in the induction of water deficit tolerance in maize plants

Cited by 17 publications

References 19 publications

The Potential of Using Chitosan on Cereal Crops in the Face of Climate Change

The Potential of Using Chitosan on Cereal Crops in the Face of Climate Change

Attenuation of negative effects of saline stress in wheat plant by chitosan and calcium carbonate

Chitosan nanoparticles improve physiological and biochemical responses of Salvia abrotanoides (Kar.) under drought stress

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