Selenium improved antioxidant response and photosynthesis in fragrant rice (Oryza sativa L.) seedlings during drought stress

Luo, Haowen; Xing, Pipeng; Liu, Jinhai; Pan, Shenggang; Tang, Xiangru; Duan, Meiyang

doi:10.1007/s12298-021-01117-9

Cited by 20 publications

(8 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phenotypic observations of rice shoot height, shoot fresh weight, shoot dry weight, and leaf chlorophyll content (SPAD value) were used to evaluate the phytotoxicity of ZIF-90-KSM [ 54 , 55 , 56 ]. As shown in Figure 7 A–D, the shoot height, shoot fresh weight, shoot dry weight, and leaf SPAD value of rice plants were not significantly affected by different concentrations of ZIF-90-KSM treatments compared to that of KSM aqueous solution treatments.…”

Section: Resultsmentioning

confidence: 99%

Zeolitic Imidazole Framework-90-Based Pesticide Smart-Delivery System with Enhanced Antimicrobial Performance

et al. 2022

View full text Add to dashboard Cite

Multimodal antimicrobial technology is regarded as a promising strategy for controlling plant diseases because it enhances antimicrobial efficacy by blocking multiple pesticide-resistance pathways. In this work, a pH-responsive multimodal antimicrobial system was constructed based on ZIF-90 for the controlled release of kasugamycin (KSM). A series of physicochemical characterizations confirmed the successful fabrication of ZIF-90-KSM. The results indicated that the loading capacity of ZIF-90-KSM for KSM was approximately 6.7% and that the ZIF-90 nanocarriers could protect KSM against photodegradation effectively. The acid pH at the site of disease not only decompose the Schiff base bonds between KSM and ZIF-90, but also completely dissolved the nanocarriers. The simultaneous release of KSM and Zn2+ ions was able to achieve multimodal antimicrobial functions during disease occurs. A bioactivity survey indicated that ZIF-90-KSM had superior fungicidal activity and longer duration against Magnaporthe oryzae than KSM aqueous solution. In addition, the phytotoxicity assessment of ZIF-90-KSM on rice plants did not reveal any adverse effects. Therefore, ZIF-90-KSM prepared by Schiff base reaction has great potential for achieving synergistic antifungal functions and provides an eco-friendly approach to manage rice diseases.

show abstract

Section: Resultsmentioning

confidence: 99%

Zeolitic Imidazole Framework-90-Based Pesticide Smart-Delivery System with Enhanced Antimicrobial Performance

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Drought stress has adverse effects on plant morphology (stem length, root length, and plant FW and DW) and biochemistry (decreased photosynthetic capacity) (Dubey et al 2021). Drought can significantly reduce FW and DW of the C 4 grass Spartina alterniflora, photosynthetic activity of all nitrogen sources (Hessini et al 2017), and cause a significant decreases in FW, DW, height, and stem diameter of fragrant rice seedlings (P < 0.05) (Luo et al 2021;Waqas Mazhar et al 2022). Our field survey showed that under long-term (3-year) severe drought, the main roots of S. tonkinensis were weakened, and fibrous roots were clustered (Figure S1A); under 3-year moderate drought, main roots were thick and strong (Figure S1B); when water content was too high, root rot often occurred, and aboveground parts wilted and dried (Figure S1C).…”

Section: Discussionmentioning

confidence: 98%

“…2017), and cause a significant decreases in FW, DW, height, and stem diameter of fragrant rice seedlings ( P < 0.05) (Luo et al . 2021; Waqas Mazhar et al . 2022).…”

Section: Discussionmentioning

confidence: 99%

Sophora tonkinensis: response and adaptation of physiological characteristics, functional traits, and secondary metabolites to drought stress

Liang,

Wei,

Qin

et al. 2023

Plant Biol J

View full text Add to dashboard Cite

The medicinal plant Sophora tonkinensis is a characteristic Chinese shrub of karst areas. The arid climate in karst areas produces high‐quality S. tonkinensis; however, the mechanisms of drought tolerance are not clear, which restricts sustainable plantings of S. tonkinensis. This study involved a 20‐day drought stress experiment with potted S. tonkinensis and threee soil water regimes: control (CK), mild drought (MDT), and severe drought (SDT). Plant morphology, biomass, physiological indicators, alkaloid content, and other changes under drought stress were monitored. The content of soluble sugars and proteins, and activity of antioxidant enzymes in leaves and roots were higher under drought than CK, indicating that S. tonkinensis is tolerant to osmotic stress in early drought stages. Content of matrine and oxymatrine increased gradually with increasing drought duration in the short term. The epidermis of S. tonkinensis leaves have characteristics of desert plants, including upper epidermal waxy layer, lower epidermal villi, and relatively sunken stomata, suggesting that S. tonkinensis has strong drought tolerance. In conclusion, drought stress changed the cell structure of S. tonkinensis, induced antioxidant enzyme activity and increased its resistance to drought.

show abstract

“…In this study, the application of the selenium fertilizer promoted the stem diameter in varying degrees, but the promoting effect gradually weakened with the advance in the growth period. Luo et al [48] confirmed that the application of selenium can significantly increase the stem diameter of rice under drought stress. The application of exogenous selenium could improve the anatomical characteristics of wheat stems and increase the stem diameter of wheat [49].…”

Section: Effect Of Selenium Fertilization On Maize Physiological Char...mentioning

confidence: 95%

Rational Combination of Selenium Application Rate and Planting Density to Improve Selenium Uptake, Agronomic Traits, and Yield of Dryland Maize

Gao,

Wang,

Zhao

et al. 2024

Plants

View full text Add to dashboard Cite

Exogenous selenium application could effectively improve the selenium absorption of crops affected by different climatic conditions due to changes in the planting environment and planting conditions. We planted maize at planting densities of 67,500 plants ha−1 (D1) and 75,000 plants ha−1 (D2). Five selenium fertilizer gradients of 0 mg m−2 (Se0), 7.5 mg m−2 (Se1), 15.0 mg m−2 (Se2), 22.5 mg m−2 (Se3), and 30.0 mg m−2 (Se4) were applied to investigate the response of the plants to selenium fertilizer application in terms of the gradient selenium absorption and substance accumulation. With the increase in the amount of selenium fertilizer applied, more of the selenium fertilizer will be absorbed and transported from the leaves to the grains, and the selenium content of the grains will gradually increase and exceed the selenium content of leaves. Under the D2 density in 2022, the selenium content of the grains under Se1, Se2, Se3, and Se4 treatments increased by 65.67%, 72.71%, and 250.53%, respectively, compared with that of Se0. A total of 260.55% of the plants showed a gradient of grain > leaf > cob > stalk from the Se2 treatment, and the overall selenium content of the plants increased first and then decreased. Under the D1 density, compared with the Se0, the dry matter mass of the Se1, Se2, Se3, and Se4 treatments significantly improved by 5.84%, 1.49%, and 14.26% in 2021, and significantly improved by 4.84%, 3.50%, and 2.85% in 2022. The 1000-grain weight under Se2, Se3, and Se4 treatments improved by 8.57%, 9.06%, and 15.56% compared to that under the Se0 treatment, and the yield per ha under the Se2, Se3, and Se4 treatments was 18.58%, 9.09%, and 21.42% higher than that under Se0 treatment, respectively. In addition, a reasonable combination of selenium application rate and density could improve the chlorophyll content and stem growth of dryland maize. This lays a foundation for the efficient application of selenium fertilizer and provides an important reference.

show abstract

Selenium improved antioxidant response and photosynthesis in fragrant rice (Oryza sativa L.) seedlings during drought stress

Cited by 20 publications

References 41 publications

Zeolitic Imidazole Framework-90-Based Pesticide Smart-Delivery System with Enhanced Antimicrobial Performance

Zeolitic Imidazole Framework-90-Based Pesticide Smart-Delivery System with Enhanced Antimicrobial Performance

Sophora tonkinensis: response and adaptation of physiological characteristics, functional traits, and secondary metabolites to drought stress

Rational Combination of Selenium Application Rate and Planting Density to Improve Selenium Uptake, Agronomic Traits, and Yield of Dryland Maize

Contact Info

Product

Resources

About