eupatorium resinosum/nicotine

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

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

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,

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

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

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

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

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