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nicotiana × sanderae/nekrozė

Nuoroda įrašoma į mainų sritį
StraipsniaiKlinikiniai tyrimaiPatentai
Puslapis 1 nuo 389 rezultatus
RNA silencing functions as an antivirus defense strategy in plants, one that plant viruses counter by producing viral suppressors of RNA silencing (VSRs). VSRs have been identified in three members of the genus Crinivirus but they do not all share identical suppression mechanisms. Here, we used
Summary A root knot nematode resistance gene in Nicotiana tabacum, Rk, providing resistance to the nematode parasite Meloidogyne incognita is tightly linked to, or is a pleiotropic gene with a veinal necrosis systemic hypersensitive response to infection by Potato virus Y (PVY) M(s)N(r). The single
Viral molecular determinant(s) involved in the tobacco vein necrosis (TVN) symptom induced by necrotic isolates of Potato virus Y (PVY) on Nicotiana tabacum cv. Xanthi leaves remain undetermined. Reference isolates belonging to PVY(N) (infectious PVY(N)-605 clone) and PVY(O) (PVY(O)-139) were used
The prevalence of necrotic potato virus Y (PVY) in natural populations could reflect increased fitness of necrotic isolates. In this paper, the effects of the acquisition of molecular determinants (A/G(2213) and A/C(2271)) involved in necrosis capacity on both the number of progeny produced and the

Correlation between binding affinity and necrosis-inducing activity of mutant AVR9 peptide elicitors.

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The race-specific peptide elicitor AVR9 of the fungus Cladosporium fulvum induces a hypersensitive response only in tomato (Lycopersicon esculentum) plants carrying the complementary resistance gene Cf-9 (MoneyMaker-Cf9). A binding site for AVR9 is present on the plasma membranes of both resistant

Movement of elicitins, necrosis-inducing proteins secreted by Phytophthora sp., in tobacco.

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In culture, Phytophthora fungi - except P. nicotianae - secrete proteins, called elicitins, which cause necrosis on the leaf of the non-host tobacco (Nicotiana tabacum L.) at a distance from the inoculation site, and are responsible for the incompatible reaction. Cryptogein and capsicein are
Excised leaves of Nicotiana tabacum var Xanthi and Nicotiana rustica were treated with cryptogein and capsicein, basic and acidic elicitins, respectively. Both compounds induced leaf necrosis, the intensity of which depended on concentration and duration of treatment. N. tabacum var Xanthi was the

Infectious transcripts from cloned cucumber necrosis virus cDNA: evidence for a bifunctional subgenomic mRNA.

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Highly infectious synthetic transcripts from full-length cucumber necrosis virus (CNV) cDNA clones have been prepared. Infections produced by these transcripts, by CNV RNA, and by mutated transcripts are compared. Inoculation with natural CNV RNA resulted in a mild systemic necrosis in Nicotiana

Symptomatology and movement of a cucumber necrosis virus mutant lacking the coat protein protruding domain.

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A cucumber necrosis virus (CNV) mutant which lacks the coding sequence for the coat protein protruding domain, PD(-), was constructed by site-directed mutagenesis of an infectious CNV cDNA clone, pK2/M5 (wild-type, 4701 nt). Transcripts of PD(-) were infectious on Nicotiana clevelandii; however,
ABSTRACT The 50-kDa protein (P50) encoded by the open reading frame 2 of Apple chlorotic leaf spot virus (ACLSV), a putative movement protein, was expressed in transgenic Nicotiana occidentalis plants. P50 in transgenic plants was mainly detected in a modified form in the cell wall fraction, similar
ABSTRACT Transgenic Nicotiana occidentalis plants expressing a movement protein (P50) and partially functional deletion mutants (DeltaA and DeltaC) of the Apple chlorotic leaf spot virus (ACLSV) showed resistance to Grapevine berry inner necrosis virus (GINV). The resistance is highly effective and
To understand why transgenic Nicotiana occidentalis plants expressing a functional movement protein (MP) of Apple chlorotic leaf spot virus (ACLSV) show specific resistance to Grapevine berry inner necrosis virus (GINV), the MPs of ACLSV (50KP) and GINV (39KP) were fused to green, yellow, or cyan
We introduced a full-length cDNA sequence encoding tobacco (Nicotiana tabacum) uroporphyrinogen III decarboxylase (UROD; EC 4.1.1.37) in reverse orientation under the control of a cauliflower mosaic virus 35S promoter derivative into the tobacco genome to study the effects of deregulated UROD
Infectious clones of Korean turnip mosaic virus (TuMV) isolates KIH1 and HJY1 share 88.1% genomic nucleotides and 96.4% polyprotein amino acid identity, and they induce systemic necrosis or mild mosaic, respectively, in Nicotiana benthamiana. Chimeric constructs between these isolates
Different isolates of Alternanthera mosaic virus (AltMV; Potexvirus), including four infectious clones derived from AltMV-SP, induce distinct systemic symptoms in Nicotiana benthamiana. Virus accumulation was enhanced at 15 °C compared to 25 °C; severe clone AltMV 3-7 induced systemic necrosis (SN)
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