Elicitor-Induced Defense Response in Soybean Plants Challenged by Bemisia tabaci

Locateli, Bruna Taiza; Cruz, Mycheli Preuss da; Dalacosta, Nean Locatelli; Oligine, Karine Fuschter; Bertoldo, Edson; Mazaro, Sérgio Miguel; Haas, Jucelaine; Potrich, Michele; Favetti, Caroline Isabella

doi:10.5539/jas.v11n2p251

Cited by 5 publications

(4 citation statements)

References 22 publications

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“…Shifts in the activity patterns of defensive enzymes in response to herbivory have been previously reported in soybean. Locateli et al ( 2019 ) found higher activity of PAL in soybean plants 96 h after treatment with Bemisia tabaci , but at 168 h the PAL activity was lower than that of untreated controls. Speculatively, it may be possible that herbivore-derived effectors change the initial plant response over time.…”

Section: Discussionmentioning

confidence: 97%

Silicon-Mediated Enhancement of Herbivore Resistance in Agricultural Crops

et al. 2021

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Silicon (Si) is a beneficial mineral that enhances plant protection against abiotic and biotic stresses, including insect herbivores. Si increases mechanical and biochemical defenses in a variety of plant species. However, the use of Si in agriculture remains poorly adopted despite its widely documented benefits in plant health. In this study, we tested the effect of Si supplementation on the induction of plant resistance against a chewing herbivore in crops with differential ability to accumulate this element. Our model system comprised the generalist herbivore fall armyworm (FAW) Spodoptera frugiperda and three economically important plant species with differential ability to uptake silicon: tomato (non-Si accumulator), soybean, and maize (Si-accumulators). We investigated the effects of Si supply and insect herbivory on the induction of physical and biochemical plant defenses, and herbivore growth using potted plants in greenhouse conditions. Herbivory and Si supply increased peroxidase (POX) activity and trichome density in tomato, and the concentration of phenolics in soybean. Si supplementation increased leaf Si concentration in all plants. Previous herbivory affected FAW larval weight gain in all plants tested, and the Si treatment further reduced weight gain of larvae fed on Si accumulator plants. Notably, our results strongly suggest that non-glandular trichomes are important reservoirs of Si in maize and may increase plant resistance to chewing herbivores. We conclude that Si offers transient resistance to FAW in soybean, and a more lasting resistance in maize. Si supply is a promising strategy in management programs of chewing herbivores in Si-accumulator plants.

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Section: Discussionmentioning

confidence: 97%

Silicon-Mediated Enhancement of Herbivore Resistance in Agricultural Crops

et al. 2021

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“…According to Locateli et al. (2019), the latter could be related to a double stimulus: that of the natural defense of the fruit and that induced by Ch on the production of phenols.…”

Section: Resultsmentioning

confidence: 99%

“…Their results coincide with the results obtained in the present study because phenolic content slightly increased at day 6 when the anthracnose symptoms intensified; and also, fruit coated with the different molecular weights Ch had lower anthracnose development and higher phenolic compounds. According to Locateli et al (2019), the latter could be related to a double stimulus: that of the natural defense of the fruit and that induced by Ch on the production of phenols.…”

Section: Bioactive Compoundsmentioning

confidence: 99%

Effect of chitosan with different molecular weights on the antifungal activity against Colletotrichum gloeosporioides and activation of the non‐enzymatic antioxidant system on infected papaya

López-Zazueta

Ayón‐Reyna

Gutiérrez‐Dorado

et al. 2023

Journal of Food Science

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Chitosan (Ch) is a biopolymer with excellent antimicrobial and antioxidant properties, capable of maintaining the organoleptic quality of fruits. These properties have been related to its molecular weight. However, the effect of different molecular weights on the non‐enzymatic antioxidant system and postharvest quality of anthracnose‐infected papaya is still unknown. Therefore, this study evaluated the effect of different Ch molecular weights (13, 25, and 55 kDa) on anthracnose development, antioxidant capacity, and postharvest quality of papaya. The Ch‐55, Ch‐25, and 13 kDa inhibited the development of Colletotrichum gloeosporioides. In comparison with thiabendazole, Ch with different molecular weights showed fungicidal effects. Ch‐55 kDa reduced anthracnose incidence and severity and maintained postharvest quality parameters of papaya. In addition, Ch‐55 and Ch‐13 kDa favored synthesis of ascorbic acid, total phenolics, and antioxidant capacity. Therefore, Ch‐55 kDa is an alternative to the protection against C. gloeosporioides and a stimulant of the non‐enzymatic antioxidant system in papaya fruits during its postharvest storage. Practical Application Ch with different molecular weights have different effects over anthracnose control and postharvest quality in papaya. In addition, they have different stimulation levels on the non‐enzymatic antioxidant system of papaya fruits, in a higher level than the chemical fungicide TBZ, by regulating the growth of the fungus and the degradative processes that are generated in fungal infection. In this sense, we believe that our findings could be of interest for producers and farmers to take advantage of this biopolymer to control anthracnose, preserve the postharvest quality, and stimulate the non‐enzymatic antioxidant system of papaya fruit.

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“…Both of inducers; SA (C7H6O3; MW = 138.12) and SMS (Na2SiO3.9H2o; MW = 284.20) were produced by Oxford Lab Chem. Mumbai, India and applied at 2 mM concentration which are considered optimal for the normal growth of bean and widely used in several studies (Hodson and Evans, 1995;Gong et al, 2005;Gunes et al, 2007;Shen et al, 2009;Locateli et al, 2019). For each variety, seven treatments were applied as described in Table (1) with three replicates for each treatment.…”

Section: Methodsmentioning

confidence: 99%

Alternative Control Method for the Whitefly, Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae) on Soybean Plants

Hegazy,

Eissa,

Khattab

et al. 2023

Journal of Plant Protection and Pathology

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Soybean [Glycine max (L.) Merr.] is one of the most important crops cultivated all over the world. The cotton whitefly, Bemisia tabaci (Genn.) is an important piercing sucking insect pest attacking several crops. Using chemical insecticides in pest control causes several problems in the environment and agroecosystems so using non-chemical alternative applications are becoming more needed. The current work examined the effect of using salicylic acid (SA) and sodium meta silicate (SMS) at 2 mM concentration, as inducers, to enhance some biochemical contents and trichome density of soybean plants (Giza 111 and Giza 35 cv.) and their relationship with whitefly biology under laboratory conditions. For each variety, seven treatments were categorized including treated seeds, treated seeds + foliage spray and untreated seeds + foliage spray in addition to untreated check. The results showed that activities of catalase (CAT), polyphenol oxidase (PPO) and peroxidase (POX) increased significantly due to all treatments compared with control in both varieties. Treated seed + foliage spray with SMS induced significantly the highest increase in total protein; by 11.05% and 7.65% for Giza 111 and Giza 35, respectively. Based on biology of whitefly on the two soybean varieties, the results indicated that treated seed + foliage spray with SA and SMS were the most effective treatment against different developmental stages of whitefly from egg to adult. Using chemical inducers such as SA and SMS enhances the resistance of soybean plants and reduces whitefly development.

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Elicitor-Induced Defense Response in Soybean Plants Challenged by Bemisia tabaci

Cited by 5 publications

References 22 publications

Silicon-Mediated Enhancement of Herbivore Resistance in Agricultural Crops

Silicon-Mediated Enhancement of Herbivore Resistance in Agricultural Crops

Effect of chitosan with different molecular weights on the antifungal activity against Colletotrichum gloeosporioides and activation of the non‐enzymatic antioxidant system on infected papaya

Alternative Control Method for the Whitefly, Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae) on Soybean Plants

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