NDLI: Hyperspectral and molecular analysis of Stagonospora nodorum blotch disease in durum wheat

Content Provider	Springer Nature Link
Author	Iori, A. Scala, V. Cesare, D. Pinzari, F. D’Egidio, M. G. Fanelli, C. Fabbri, A. A. Reverberi, M. Serranti, S.
Copyright Year	2014
Abstract	Stagonospora nodorum blotch (SNB) is an important wheat disease caused by Parastagonospora nodorum (Berk.) Studies in Mycology, 75: 307–390 (2013). This necrotrophic pathogen can attack common and durum wheat, causing grain yield, quality and safety worsening. This work aims to studying a novel diagnostic technique for early detecting P. nodorum attack and infection progression in three Italian commercial varieties of durum wheat. Plants of these wheat varieties were inoculated in field with a spore suspension of P. nodorum. Different experimental conditions were used: P. nodorum was inoculated in plants at different growth stage (GS); GS32 (Inf A) and GS 73 (milk development - Inf B). To consider natural contaminating mycoflora interference for the subsequent analysis, non-inoculated controls, fungicide-treated (T) or non-treated (NT) were used. Inf A produced symptoms both on leaves and ears which appeared to be more severe compared to those induced by Inf B, even if the latter affected more thoroughly wheat yield in at least one variety of wheat. An early detection of SNB could be helpful to manage a targeted control strategy. Hyperspectral imaging analyses showed that this rapid and non-invasive technique allows differentiation between spectra of healthy and diseased tissues already 48 h after inoculation. qPCR confirmed hyperspectral results. The results showed that marked differences emerge in the ability of the varieties to tolerate the SNB disease especially regarding grain yield and quality. Compared with classical approaches, the hyperspectral imaging analysis may represent a useful tool for early detection of P. nodorum on wheat.
Starting Page	689
Ending Page	702
Page Count	14
File Format	PDF
ISSN	09291873
Journal	European Journal of Plant Pathology
Volume Number	141
Issue Number	4
e-ISSN	15738469
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-12-11
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Parastagonospora nodorum Blotch disease Durum wheat qPCR Hyperspectral analysis Plant Pathology Plant Sciences Ecology Agriculture Life Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Horticulture Agronomy and Crop Science

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