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Soybean rust is a disease that affects soybeans and other legumes. It is caused by two types of fungi, Phakopsora pachyrhizi, commonly known as Asian soybean rust, and Phakopsora meibomiae, commonly known as New World soybean rust. P. meibomiae is the weaker pathogen of the two and generally does not cause widespread problems.
The Asian soybean rust is a polycyclic disease: within the disease cycle, the asexual urediniospores keep infecting the same plant. Teliospores (sexual spores) are the survival spores that overwinter in the soil. Basidiospores are the spores that are able to contaminate an alternative host. The urediniospores need a minimum of six hours to ...
Rust fungi grow intracellularly, and make spore-producing fruiting bodies within or, more often, on the surfaces of affected plant parts. [3] Some rust species form perennial systemic infections that may cause plant deformities such as growth retardation, witch's broom, stem canker, galls, or hypertrophy of affected plant parts.
(b) Vegetative cycle occurring on poplar leaves and used as a model for molecular investigations of the poplar-poplar rust interaction. hpi=hours of postinoculation. A heteroecious parasite is one that requires at least two hosts. The primary host is the host in which the parasite spends its adult life; the other is the secondary host. Both ...
An Australian man is accused of murdering his wife with a homemade spear. Talaat Hawatt, also known as Terrance Howot, is accused of having attacked his wife Khouloud Bakour Hawatt with the weapon ...
As far as practical purses go, you can't get better than this compact stunner. It's not too big, not too small and the adjustable strap lets you go hands-free (read: great for travel or everyday ...
The third book in the Yarros’ “Empyrean” series comes out in January from Entangled Publishing. The follow-up to “Fourth Wing” and “Iron Flame” swaps Basgiath War College lessons for ...
Soybean cyst nematode Heterodera glycines. Spiral nematode Helicotylenchus spp. Sting nematode Belonolainus gracilis Belonolaimus longicaudatus. Stubby root nematode Paratrichodorus minor. Stunt nematode Quinisulcius acutus Tylenchorhynchus spp.