The simplest known plant pathogens are the viroids. Because of their non-coding single-stranded circular RNA genome, they depend on both their sequence and their structure for both a successful infection and their replication. In the recent years, important progress in the elucidation of their structures was achieved using an adaptation of the selective 2'-hydroxyl acylation analyzed by primer ...

En México se cultivan variedades algodón de ciclo largo (170 días siembra a cosecha) y abundante crecimiento vegetativo, que no son las más idóneas para regiones como la Comarca Lagunera, porque requieren una alta inversión en insumos agua, fertilizantes e insecticidas, lo cual trae consigo altos costos producción. El problema agrava suelos infestados con el hongo Verticillium dahliae K., causa...

The present investigation Efficacy of plant growth retardants on growth, flowering, yield and shelf life dahlia (Dahlia variabilis L.) cv. Shubhra was conducted in Research Field, Department Horticulture, Sam Higginbottom University Agriculture, Technology Sciences, Prayagraj, during winter season (2022-23). experiment laid out Randomized block design (RBD). There are 9th treatment combination ...

ABSTRACT A precise real-time polymerase chain reaction (PCR) assay was developed for quantifying Verticillium albo-atrum DNA. The assay was used in a repeated experiment to examine the relationship between the quantity of pathogen DNA detected in infected leaves and shoots and the severity of Verticillium wilt symptoms in several alfalfa cultivars expressing a range of disease symptoms. Plants ...

Elucidating the mechanism of resistance to biotic and abiotic stress is of great importance in cotton. In this study, a gene containing the NAC domain, designated GbNAC1, was identified from Gossypium barbadense L. Homologous sequence alignment indicated that GbNAC1 belongs to the TERN subgroup. GbNAC1 protein localized to the cell nucleus. GbNAC1 was expressed in roots, stems, and leaves, and ...