Infestation Rates and Tiller Morphology Effects by the Switchgrass Moth on Six Cultivars of Switchgrass

Torrez, Veronica Calles; Johnson, Paul J.; Boe, Arvid

doi:10.1007/s12155-013-9306-7

Cited by 8 publications

(2 citation statements)

References 16 publications

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“…However, switchgrass is not immune to attack and damage caused by insect pests. Switchgrass can act as a host for several feeding guilds of insect pests, including chewing, piercing-sucking, and cell-content feeding insects [2–7]. Pest pressure on switchgrass may pose a threat to breeding efforts attempting to develop insect-resistant switchgrass cultivars [8].…”

Section: Introductionmentioning

confidence: 99%

Fall armyworm (Spodoptera frugiperda Smith) feeding elicits differential defense responses in upland and lowland switchgrass

Palmer¹,

Basu

Heng-Moss

et al. 2019

PLoS ONE

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Switchgrass ( Panicum virgatum L.) is a low input, high biomass perennial grass being developed for the bioenergy sector. Upland and lowland cultivars can differ in their responses to insect herbivory. Fall armyworm [FAW; Spodoptera frugiperda JE Smith (Lepidoptera: Noctuidae)] is a generalist pest of many plant species and can feed on switchgrass as well. Here, in two different trials, FAW larval mass were significantly reduced when fed on lowland cultivar Kanlow relative to larvae fed on upland cultivar Summer plants after 10 days. Hormone content of plants indicated elevated levels of the plant defense hormone jasmonic acid (JA) and its bioactive conjugate JA-Ile although significant differences were not observed. Conversely, the precursor to JA, 12-oxo-phytodienoic acid (OPDA) levels were significantly different between FAW fed Summer and Kanlow plants raising the possibility of differential signaling by OPDA in the two cultivars. Global transcriptome analysis revealed a stronger response in Kanlow plant relative to Summer plants. Among these changes were a preferential upregulation of several branches of terpenoid and phenylpropanoid biosynthesis in Kanlow plants suggesting that enhanced biosynthesis or accumulation of antifeedants could have negatively impacted FAW larval mass gain on Kanlow plants relative to Summer plants. A comparison of the switchgrass-FAW RNA-Seq dataset to those from maize-FAW and switchgrass-aphid interactions revealed that key components of plant responses to herbivory, including induction of JA biosynthesis, key transcription factors and JA-inducible genes were apparently conserved in switchgrass and maize. In addition, these data affirm earlier studies with FAW and aphids that the cultivar Kanlow can provide useful genetics for the breeding of switchgrass germplasm with improved insect resistance.

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Section: Introductionmentioning

confidence: 99%

Fall armyworm (Spodoptera frugiperda Smith) feeding elicits differential defense responses in upland and lowland switchgrass

Palmer¹,

Basu

Heng-Moss

et al. 2019

PLoS ONE

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“…Switchgrass (Panicum virgatum L.), a characteristic derivative of the Tallgrass Prairie, is a domestic warm seasonal grass and a main element of natural and anthropogenic pastures throughout most of North America (Calles Torrez et al, 2013). Switchgrass can adapt to marginal lands, and tolerates water of soil deficits and low soil nutrient concentrations (Sokhansanj et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Influences on to Nutrient Uptake of Lead, Chromium and Cadmium Toxicity in Switchgrass (Panicum virgatum L.) Plant and Linear Regression Analyses

Çelebi

Zorer

Yeşilova

2023

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Madencilik, kentsel veya endüstriyel katı, gaz ve sıvı atıklar, pestisit ve suni gübre kullanımı, boya sanayi ve araba egzoz gazları ağır metallerin doğaya salınmasına neden olur. Çevresel kirleticilerin neden olduğu bu ağır metal stresi, bitkilerin büyümesini sınırlamakta, ürün verimini ve kalitesini düşürmektedir. Aynı zamanda, ağır metal stresi bitki besin maddelerinin bitkiler tarafından alınmasını, taşınmasını ve kullanılmasını engeller. Sonuç olarak, bu çalışma, geniş bir habitat ve iklim yelpazesine uyum sağlayabilen switchgrass’taki kurşun, kadmiyum ve kromun toksisitesini ve toleransını değerlendirmek için yapılmıştır. Ağır metallerin besin alımı üzerindeki etkilerini belirlemek amacıyla, Switchgrass (Panicum virgatum L.) bitkisi farklı konsantrasyonlarda Cd, Pb, Cr çözeltileri ile suni olarak kontamine edilmiş toprakta yetiştirilmiştir. Uygulanan metallerin farklı konsantrasyonlarından etkilenen switchgrasstaki makro ve mikro besin içeriklerindeki değişiklikler değerlendirilmiştir. Krom, kadmiyum ve kurşun fitotoksik etkiye sahip ve bitkiler için esansiyel olmayan elementler olmalarına rağmen, bu elementlerin switchgrass bitkisinin toprak üstü kısımlarında kolayca emilip biriktiği gözlenmiştir. Genel olarak, switchgrass bitkisindeki makro ve mikro besin konsantrasyonlarının farklı dozlarda Pb, Cd ve Cr uygulamalarında önemli ölçüde veya nispeten azaldığı bulunmuştur. Ca2+ ve Pb2+'nın kök hücrelere giriş için rekabet etmesi nedeniyle, uygulanan farklı Pb dozları ile sadece bitkideki Ca konsantrasyonları önemli ölçüde artmıştır. Bununla birlikte elde edilen sonuçlar lineer regresyon ve Pearson korelasyonu kullanılarak yorumlanmıştır.

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The Switchgrass Gall Midge (Chilophaga virgati Gagné) in the Northern Great Plains

2013

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Infestation Rates and Tiller Morphology Effects by the Switchgrass Moth on Six Cultivars of Switchgrass

Cited by 8 publications

References 16 publications

Fall armyworm (Spodoptera frugiperda Smith) feeding elicits differential defense responses in upland and lowland switchgrass

Fall armyworm (Spodoptera frugiperda Smith) feeding elicits differential defense responses in upland and lowland switchgrass

Influences on to Nutrient Uptake of Lead, Chromium and Cadmium Toxicity in Switchgrass (Panicum virgatum L.) Plant and Linear Regression Analyses

The Switchgrass Gall Midge (Chilophaga virgati Gagné) in the Northern Great Plains

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