Lignin Content and Resistance to <i>Sclerotinia minor</i> in Peanut

Bennett, Rebecca S.; Hatfield, Ronald D.; Payton, Mark E.; Chamberlin, Kelly D.

doi:10.3146/ps16-10.1

Cited by 5 publications

(2 citation statements)

References 53 publications

(44 reference statements)

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“…It can be formed from ferulic acid, which is an intermediate in the degradation of lignin polymers in plants (Steinke et al, 1964;Fiddler et al, 1967;Walradt et al, 1971). Lignins are important to the peanut plant for structural support of the tissues and for protection from pathogens and herbivores (Bennett et al, 2017).…”

Section: Products Of the Maillard Reactionmentioning

confidence: 99%

Volatile Compound Profiles of Raw and Roasted Peanut Seeds of the Runner and Virginia Market-types

Weissburg¹,

Johanningsmeier²,

Dean³

2023

JFR

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The unique flavor of peanuts that develops during roasting is the primary driving force for the consumption of peanut products. Although rarely consumed raw, the raw state of the peanut contains the precursors involved in the transformations that lead to the distinct flavor development in roasted peanuts. Volatile compounds extracted from the headspace above raw and roasted peanut samples of the runner and virginia market types by solid phase microextraction were characterized using two-dimensional gas chromatography coupled with time-of-flight mass spectrometry. The roasting treatment and peanut market-type each had a significant impact on the types and concentrations of small molecular weight compounds found. Among 361 sample components detected, 290 compounds were found to be significantly different between the raw and roasted treatments (p < 0.05). The roasted samples contained pyrazines, pyrroles, thiazoles, and furans. Alcohols were the primary compounds found in the raw peanut samples. Additionally, 107 compounds were found to differ significantly between roasted runner and virginia-type peanuts. Virginia-type peanuts contained higher levels of linoleic acid oxidation products, such as 2-octenal, hexanal, and 1-octen-3-one. More significant distinctions in volatile compounds were recognized between runner and virginia market types than previously observed. In total, this study reported 119 volatile compounds that have not previously been reported in roasted peanuts, including 11 furans, seven pyrroles, five pyridines, and 12 pyrazines.

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Section: Products Of the Maillard Reactionmentioning

confidence: 99%

Volatile Compound Profiles of Raw and Roasted Peanut Seeds of the Runner and Virginia Market-types

Weissburg¹,

Johanningsmeier²,

Dean³

2023

JFR

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“…Stem lignin content is thought to provide a barrier to S. minor penetration and infection. The role of stem lignin content and its relationship with sclerotinia blight resistance were investigated by Bennett et al (2017). They evaluated several runner, virginia, and spanish genotypes grown in the greenhouse for stem lignin content and looked at correlation of stem lignin content with sclerotinia blight infection in field plots of selected genotypes from the greenhouse study.…”

Section: Sclerotinia Resistancementioning

confidence: 99%

Use of wild and exotic germplasm for resistance in peanut

Cason¹,

Simpson²,

Burow

et al. 2022

J of Plant Registrations

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Peanut (Arachis hypogaea L.) is an important crop grown around the world but lacks genetic resistance to many biotic and abiotic stresses. However, these traits can be found in the wild and exotic germplasm to which peanut is genetically related. The genus Arachis contains 83 described species, some of which are home to a reservoir of useful traits and that have served as a source of resistance with their movement into the cultivated peanut. There are several excellent examples of using exotic and wild germplasm to successfully to incorporate biotic resistance traits into cultivated peanut. It is also possible that some of the genetic resources could someday be used to further enhance peanut in unforeseen ways. In this article we present some examples of successful introgression and how these success stories have been achieved.

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