Rust fungi, obligate biotrophs that cause disease and yield losses in crops such as cereals and soybean (Glycine max), obtain nutrients from the host through haustoria, which are specialized structures that develop within host cells. Resistance of flax (Linum usitatissimum) to flax rust (Melampsora lini) involves the induction of a hypersensitive cell death response at haustoria formation sites...

Asian rust of soybean [ (L.) Merril] is one of the most important fungal diseases of this crop worldwide. The recent introduction of Syd. & P. Syd in the Americas represents a major threat is extremely aggressive under favorable weather conditions, causing rapid plant defoliation. Epidemiological studies, under both controlled and natural environmental conditions, have been done for several dec...

This paper discusses the detection and management of a soybean rust outbreak in the context of agricultural homeland security. An Event-Trigger-Rule system is used for event registration, filtering and notification, and for process coordination and enforcement of agencies’ policies, constraints, regulations and data integrity/security/privacy. A ‘Response and Action Plan’ for combating the dise...

Background: Soybean rust caused by Phakopsora pachyrhizi Syd. is one of the major constraints in production soybean. Nanotechnology a new scientific approach that includes use materials and equipment capable using physical chemical properties substance at molecular level to explore biological material worlds nanometer-scale it various carriers from medicine agriculture. has emerged as most inno...

ABSTRACT Asian soybean rust (ASR) is an economically significant disease caused by the fungus Phakopsora pachyrhizi. The soybean genes Rpp3 and Rpp?(Hyuuga) confer resistance to specific isolates of the pathogen. Both genes map to chromosome 6 (Gm06) (linkage group [LG] C2). We recently identified 12 additional soybean accessions that harbor ASR resistance mapping to Gm06, within 5 centimorgans...

Soybean is one of the most important crops in Brazil and continuously generates demands for production technologies, such as cultivars resistant to diseases. In recent years, the Asian rust fungus (Phakopsora pachyrhizi Syd. & P. Syd 1914) has caused severe yield losses and the development of resistant cultivars is the best means of control. Understanding the genetic control and estimating para...

Asian soybean rust (ASR), caused by the phytopathogenic fungi Phakopsora pachyrhizi, has caused large reductions in soybean (Glycine max) yield in most locations in Brazil where it has occurred since it was first reported in May 2001. Primary efforts to combat the disease involve the development of resistant cultivars, and four dominant major genes (Rpp1, Rpp2, Rpp3 and Rpp4) controlling resist...