Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat

Pereira, Rosane Rodrigues da Costa; Moraes, Jair Campos; Prado, Ernesto; Dacosta, Ronelza Rodrigues

doi:10.1590/s0103-90162010000400009

Cited by 16 publications

(10 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Treatments consisted of four concentrations (0, 0.28, 0.55, and 0.83 g pot -1 ) of silicon in the form of 1% silicic acid solution (SiO 2 .XH 2 O) (Pereira, Moraes, Prado, & Dacosta, 2010). This solution was applied around the stems of the plants (drenched), with the first application being administered 15 days after transplanting.…”

Section: Methodsmentioning

confidence: 99%

<b>Effects of silicon on the growth and genetic stability of passion fruit

et al. 2016

View full text Add to dashboard Cite

ABSTRACT. The objective of this study was to determine the silicon concentration that would provide good growth in passion fruit plants. Passion fruit seeds were sown in polystyrene. After 60 days, when they were approximately 15 cm tall, the plants were transplanted into polyethylene pots containing 1.1 kg Tropstrato® substrate. Treatments consisted of four concentrations (0, 0.28, 0.55, and 0.83 g pot -1 ) of silicon applied as a silicic acid solution 1%. This solution was applied around the stem of the plants (drenched), with the first application being administered 15 days after transplanting. In total, three applications were made at intervals of 15 days. After the last application, the plants were subjected to chemical analysis to determine the silicon concentration and to X-ray microanalysis and flow cytometry. Phytotechnical analyses were performed during the applications. The use of silicon in concentrations of 0.28 and 0.55 g pot -1 provides better growth of the passion fruit, and the absorption and deposition of the silicon in the passion fruit leaves are proportional to the availability of this element in the plant. The roots of the passion fruit plant are silicon accumulators, and the DNA stability and amount are preserved in the silicon-treated passion fruit plants. ) de silício, na forma de solução de ácido silícico a 1%. Esta solução foi aplicada ao redor do caule das plantas (drench), sendo a primeira aplicação realizada 15 dias após o transplantio das plantas. No total, foram realizadas três aplicações, em intervalos de 15 dias. Após a última aplicação, as plantas foram submetidas à análise química de concentração de silício, microanálise de raios-X e citometria de fluxo. As análises fitotécnicas foram realizadas no decorrer das aplicações. O uso do silício nas concentrações 0,28 e 0,55 g vaso -1 , proporciona melhor crescimento das plantas de maracujazeiro, a absorção de silício e sua deposição nas folhas de maracujazeiro são proporcionais à disponibilidade desse elemento para a planta, o maracujazeiro é uma planta acumuladora de silício nas raízes e a estabilidade da quantidade de DNA é preservada nas plantas de maracujazeiro tratadas com silício.Palavras-chave: citometria de fluxo, ácido silícico, Passiflora edulis.

show abstract

Section: Methodsmentioning

confidence: 99%

<b>Effects of silicon on the growth and genetic stability of passion fruit

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Insect phloem feeding can be inhibited at three stages: before food ingestion, during ingestion (via the activity of salivary enzymes), or after digestion and food absorption. Electrical penetration graphs (EPGs) allowed monitoring of the behavioural responses of insects during probing and feeding and exploration of interference with probing by chemical or physical factors within the plant tissues and of the localization of resistance within plant tissues [ 56 ].…”

Section: Silicon-mediated Induced Resistance To Insectsmentioning

confidence: 99%

Silicon and Mechanisms of Plant Resistance to Insect Pests

Alhousari

Greger

2018

Plants

133

View full text Add to dashboard Cite

This paper reviews the most recent progress in exploring silicon-mediated resistance to herbivorous insects and the mechanisms involved. The aim is to determine whether any mechanism seems more common than the others as well as whether the mechanisms are more pronounced in silicon-accumulating than non-silicon-accumulating species or in monocots than eudicots. Two types of mechanisms counter insect pest attacks: physical or mechanical barriers and biochemical/molecular mechanisms (in which Si can upregulate and prime plant defence pathways against insects). Although most studies have examined high Si accumulators, both accumulators and non-accumulators of silicon as well as monocots and eudicots display similar Si defence mechanisms against insects.

show abstract

“…(Antunes et al, 2010). Application of silicon and acibenzolar-S-methyl (ASM) in wheat plants reduced the number of nymphs, extending the duration of the pre-reproductive period and the number of honeydew drops of the green aphid Schizaphis graminum (Rondani, 1958) (Pereira et al, 2010). Considering the high expenses of controlling S. frugiperda, the use of elicitors capable of promoting the induction of resistance is a promising alternative, since induction of resistance allows to reduce the pest population density below the economic damage level, with minimum impact on the environment, being compatible with other control methods.…”

Section: Introductionmentioning

confidence: 99%

Effect of resistance elicitors on the biology and feeding preference of Spodoptera frugiperda (J.E.Smith) (Lepidoptera: Noctuidae) in corn

Mondego¹,

Machado²,

Oliveira³

et al. 2018

Aust J Crop Sci

View full text Add to dashboard Cite

This study searches for efficient and low environmental impact alternatives to control Spodoptera frugiperda. Application of elicitors capable of inducing resistance in plants has already been highlighted. The elicitors trigger the plant's defense capacity against attack of herbivores and phytopathogenic organisms. Thus, the present study aimed to evaluate the effect of resistance elicitors on some biological aspects and food preference of Spodoptera frugiperda (J. E. Smith) in corn in laboratory conditions. The treatments consisted of: Control (distilled water); Biofertilizer (25 mL L-1); Acibenzolar-S-methyl-ASM (2 mg mL-1); Potassium silicate (10 mL L-1) and T5: Potassium silicate (10 mL L-1) + ASM (2 mg mL-1). The treatments were foliar application of elicitors with adjustable jet pressure sprayer to the whole plant with an amount of 20 mL of the solution per plant. The larval phase (weight at 7 and 14 days, duration and viability); pupal phase (weight after 24 h, duration and viability) and adult phase (number of eggs / female, number of eggs/posture/female and longevity of adults) were evaluated. Free-choice and no-choice food preference test experiments were also carried out on 1st and 3rd instar caterpillars, after which the leaves collected at 5 and 10 days after spraying. The results showed that Acibenzolar-S-methyl induces resistance in corn plants when applied either alone or together with potassium silicate. Therefore, it adversely affects development of S. frugiperda. The leaves treated with Potassium Silicate + ASM were less preferred and consumed by 1st and 3rd instar caterpillars in free-choice food preference test.

show abstract

Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat

Cited by 16 publications

References 14 publications

<b>Effects of silicon on the growth and genetic stability of passion fruit

<b>Effects of silicon on the growth and genetic stability of passion fruit

Silicon and Mechanisms of Plant Resistance to Insect Pests

Effect of resistance elicitors on the biology and feeding preference of Spodoptera frugiperda (J.E.Smith) (Lepidoptera: Noctuidae) in corn

Contact Info

Product

Resources

About