eupatorium rufescens/nikótín

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First Report of Tobacco ringspot virus in Joe-Pye Weed (Eupatorium purpureum) in Mississippi.

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Eupatorium purpureum L. (joe-pye weed, sweet joe-pye weed, and sweetscented joe-pye weed) is a wildflower perennial plant native to the eastern United States. In May 2006, virus-like symptoms including systemic chlorosis, mottling, and downward rolling of leaf blades were observed in a joe-pye weed

The Role of Weed Hosts and Tobacco Thrips, Frankliniella fusca, in the Epidemiology of Tomato spotted wilt virus.

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Wild plant species were systematically sampled to characterize reproduction of thrips, the vector of Tomato spotted wilt virus (TSWV), and natural sources TSWV infection. Thrips populations were monitored on 28 common perennial, biennial, and annual plant species over two noncrop seasons at six

Chalcone synthase EaCHS1 from Eupatorium adenophorum functions in salt stress tolerance in tobacco.

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CONCLUSIONS EaCHS1 functions in the tolerance of plantlets to salinity stress by maintaining ROS homeostasis. Chalcone synthase (CHS) is an essential enzyme in the biosynthesis of flavonoids. Expression of CHS is governed by a wide range of environmental stimuli, including UV light, pathogen attack,

First Report of Tobacco vein distorting virus Infecting Eupatorium adenophorum in China.

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Molecular evolution of a host-range gene in geminiviruses infecting asexual populations of Eupatorium makinoi.

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Asexual plants of Eupatorium makinoi is frequently infected with tobacco leaf curl geminivirus (TLCV). The host range of TLCV is narrow, and ORF C4 is considered to function as a host range determinant. Using this TLCV-Eupatorium system, we tested the expectation that the rate of amino acid

Effects of Eupatorium yellow vein virus infection on photosynthetic rate, chlorophyll content and chloroplast structure in leaves of Eupatorium makinoi during leaf development

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Infection of Eupatorium yellow vein geminivirus (EpYVV, formerly called tobacco leaf curl virus, TLCV) causes variegation in Eupatorium makinoi Kawahara et Yahara leaves. We examined changes in photosynthesis during leaf development to clarify what is the primary event when photosynthesis is

Effects of virus infection on demographic traits of an agamospermous population of Eupatorium chinense (Asteraceae).

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There are few studies of the interaction between wild plants and viruses. In this paper, the incidence of a geminivirus (tobacco leaf curl virus, TLCV) infection, and its effects on mortality, growth and reproduction of its host-plant, Eupatorium chinense, are reported. A total of 221 plants of an

Characterization of defensive cadinenes and a novel sesquiterpene synthase responsible for their biosynthesis from the invasive Eupatorium adenophorum

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Eupatorium adenophorum is a malignant invasive plant possessing extraordinary defense potency, but its chemical weaponry and formation mechanism have been rarely investigated. We identified six cadinene sesquiterpenes including two volatiles (amorpha-4,7(11)-diene and (-)-amorph-4-en-7-ol) and four

Unique grouping of the Far East Asian begomovirus complex based on sequence analyses of the DNA-A genome and associated DNAbeta satellite molecules isolated from tomato, honeysuckle and Eupatorium plants in Japan.

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Nucleotide (nt) sequencing has contributed to the identification of virus species and has also proved diagnostically useful in the control of tomato-infecting begomoviruses disease. We determined the complete nt sequences of the DNA-A genome and its cognate DNAbeta satellite molecules in isolates of

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Herbal & Natural Medicine

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