In this paper, thermal (8-13 µm) and hyperspectral imaging in visible and near infrared (VNIR) and short wavelength infrared (SWIR) ranges were used to elaborate a method of early detection of biotic stresses caused by fungal species belonging to the genus Alternaria that were host (Alternaria alternata, Alternaria brassicae, and Alternaria brassicicola) and non-host (Alternaria dauci) pathogen...

Black spot of Ophiopogon japonicus is an economically important disease, which can result in significant losses both yield and quality this traditional Chinese medicinal plant. The disease caused by the small-spored fungal pathogen Alternaria alternata, a necrotrophic fungus that ubiquitously distributed environment. Here, we present draft whole-genome sequence A. alternata strain B3 black on O...

The present investigation was conducted to test the in vitro efficacy of fungicides, botanicals and bio-agents against Alternaria alternata causing leaf blight disease chrysanthemum. Seven fungicides evaluated under in-vitro condition showed that Hexaconazole, Difenconazole Azoxystrobin + at all concentrations viz.,0.1, 0.2 0.3% completely inhibited fungal mycelial growth followed by Tebuconazo...

The filamentous fungus Alternaria alternata is a potent producer of many secondary metabolites, some of which like alternariol or alternariol-methyl ether are toxic and/or cancerogenic. Many Alternaria species do not only cause post-harvest losses of food and feed, but are aggressive plant pathogens. Despite the great economic importance and the large number of research groups working with the ...

brown spot disease caused by alternaria alternata (fr.: fr.) keissl is a serious problem forproduction of tangerines and tangerine hybrids in iran. the tangerine pathotype causes brownspot disease on young leaves and immature fruits of limited varieties of mandarins and tangerines(citrus. reticulata blanco). specificity in the interaction between tangerine and the pathogen isdetermined by a hos...

The tomato pathotype of Alternaria alternata produces host-specific AAL toxin and causes Alternaria stem canker on tomato. A polyketide synthetase (PKS) gene, ALT1, which is involved in AAL toxin biosynthesis, resides on a 1.0-Mb conditionally dispensable chromosome (CDC) found only in the pathogenic and AAL toxin-producing strains. Genomic sequences of ALT1 and another PKS gene, both of which ...

OPSOMMING ’n O pnam e v an b esk ik b are geson d h eid sd ien ste in Sow eto is deur telefon iese en p ersoonlik e onderhoud e gem aak . D em ografïese en sosiaa l-ek on om iese in lig tin g oor d ie gebied, so o s op p erv lak te , k lim aat, b evo lk in g , fa s ilite ite v ir om gew ingsh ig iëne, w erksgeleen th ed e, on d erw y s en op voed in g w ord gegee. D ie a lgem en e g eson d h ei...

Diseases caused by Alternaria sp. are among the most common diseases of crops throughout the world. Alternaria sp. is a common component of the flora of wheat seed. Although isolation of Alternaria sp. from wheat (Triticum aestivum) seed has been reported in Argentina, development of the Alternaria blight in plants from infected seeds has not been demonstrated experimentally. Seed transmission ...

The antimicrobial activity and the MIC values of the ethanol, chloroform, diethyl ether, and acetone extracts of the chemical races of Pseudevernia furfuracea (var. furfuracea and var. ceratea) and their physodic acid, chloroatranorin, atranorin, and olivetoric acid constituents have been investigated against some microorganisms. Nearly all extracts of both chemical races showed antimicrobial a...