Defense mechanisms involved in the resistance of maize cultivars to Bipolaris maydis

Schauffler, Giana Paula; Fonseca, João dos Anjos Verzutti; Piero, Robson Marcelo Di

doi:10.1007/s10658-022-02475-0

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…These results are confirmed by other studies, such as the effect of IAA on the contents and metabolites in Hibiscus sabdariffa plants, showing no considerable difference between concentrations with IAA [63]. For example, an increase in the total phenols and antioxidant capacity measured using DPPH could indicate a response to plant defense mechanisms under stress conditions [64], or as a form of protection against oxidative damage [65]. In our case, it is suggested that the concentration of IAA may have an impact on the antioxidant capacity of the onion crop.…”

Section: Discussionsupporting

confidence: 87%

Effect of the Exogenous Application of Different Concentrations of Indole-3-Acetic Acid as a Growth Regulator on Onion (Allium cepa L.) Cultivation

Solano,

Artola,

Barrena

et al. 2023

Agronomy

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Indole-3-acetic acid (IAA) is a key plant hormone that plays crucial roles in plant growth and development. This study investigated the effects of exogenous application of IAA as a growth regulator in onion cultivation (Allium cepa L.). Various IAA concentrations were evaluated to determine their effects on onion growth and chemical parameters. Several agronomic properties and chemical parameters, including total fresh weight, plant height, chlorophyll content, nitrates, total phenols, and antioxidant capacity (DPPH), were analyzed. The results revealed that the exogenous application of different concentrations of IAA had a significant impact on onion growth and quality. Specifically, it was found that certain concentrations of IAA fostered a significant increase in fresh bulb weight and a notable elevation in the levels of phenolic compounds. However, the onion’s response to IAA was concentration dependent. In conclusion, the present study offers evidence that the exogenous application of IAA as a growth regulator can enhance onion growth and quality. These findings hold relevance for the advancement of sustainable agricultural practices and can be directed towards crop enhancement.

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Section: Discussionsupporting

confidence: 87%

Effect of the Exogenous Application of Different Concentrations of Indole-3-Acetic Acid as a Growth Regulator on Onion (Allium cepa L.) Cultivation

Solano,

Artola,

Barrena

et al. 2023

Agronomy

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“…In general, rust germination on leaf blades appears to be quite rare, and host genotype variations were insignificant or unpredictable [31]. Current research on maize demonstrated that the number of stomata, size of stomata, and type of cultivar all affect the penetration of fungi [32][33][34]. However, the susceptible variety exhibits a wider stomatal aperture and greater fungal mycelium deposition around the stomata (Figure 1).…”

Section: Stomatal Exclusion In Plant-fungi Interactionsmentioning

confidence: 99%

Plant Stomata: An Unrealized Possibility in Plant Defense against Invading Pathogens and Stress Tolerance

Meddya,

Meshram,

Sarkar

et al. 2023

Plants

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Stomata are crucial structures in plants that play a primary role in the infection process during a pathogen’s attack, as they act as points of access for invading pathogens to enter host tissues. Recent evidence has revealed that stomata are integral to the plant defense system and can actively impede invading pathogens by triggering plant defense responses. Stomata interact with diverse pathogen virulence factors, granting them the capacity to influence plant susceptibility and resistance. Moreover, recent studies focusing on the environmental and microbial regulation of stomatal closure and opening have shed light on the epidemiology of bacterial diseases in plants. Bacteria and fungi can induce stomatal closure using pathogen-associated molecular patterns (PAMPs), effectively preventing entry through these openings and positioning stomata as a critical component of the plant’s innate immune system; however, despite this defense mechanism, some microorganisms have evolved strategies to overcome stomatal protection. Interestingly, recent research supports the hypothesis that stomatal closure caused by PAMPs may function as a more robust barrier against pathogen infection than previously believed. On the other hand, plant stomatal closure is also regulated by factors such as abscisic acid and Ca2+-permeable channels, which will also be discussed in this review. Therefore, this review aims to discuss various roles of stomata during biotic and abiotic stress, such as insects and water stress, and with specific context to pathogens and their strategies for evading stomatal defense, subverting plant resistance, and overcoming challenges faced by infectious propagules. These pathogens must navigate specific plant tissues and counteract various constitutive and inducible resistance mechanisms, making the role of stomata in plant defense an essential area of study.

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Maize protection against Bipolaris maydis using Lentinula edodes, Aloe vera and acibenzolar-S-methyl

Fonseca,

Suárez,

Schauffler

et al. 2023

J Plant Dis Prot

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Defense mechanisms involved in the resistance of maize cultivars to Bipolaris maydis

Cited by 4 publications

References 31 publications

Effect of the Exogenous Application of Different Concentrations of Indole-3-Acetic Acid as a Growth Regulator on Onion (Allium cepa L.) Cultivation

Effect of the Exogenous Application of Different Concentrations of Indole-3-Acetic Acid as a Growth Regulator on Onion (Allium cepa L.) Cultivation

Plant Stomata: An Unrealized Possibility in Plant Defense against Invading Pathogens and Stress Tolerance

Maize protection against Bipolaris maydis using Lentinula edodes, Aloe vera and acibenzolar-S-methyl

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