Late Permian azonate and zonate
trilete spores from Chhidru Formation, Salt Range, Pakistan.
Characterization of Tomato zonate spot virus, a new tospovirus species in China.
Natural host ranges of Tomato zonate spot virus in Yunnan.
5 cm broad; leathery and flexible when young and moist, rigid and hard corky when dry; white to cream throughout or the bases occasionally umber to black; surface dry, ranging from very finely tomentose and velvety to the touch, to glabrous and smooth with age, often concentrically zonate, especially near the margin, and warted with age.
Hymenium: Buff to pale brown, slightly zonate especially at the margin, but appearing cracked like the pieces of a puzzle; smooth.
2) and early inflorescence apex are zonate but the latter shifts to a mantle/core configuration (Fig.
The vegetative apices were generally zonate in configuration, while the conversion to an inflorescence apex involved increases in height and width and change to a mantle/core configuration.
Specimens were further confirmed by the presence of zonate
tetraspores embedded in surface patches within the thalli.
Descriptions of the histological patterns seen in sections of the pteridophyte shoot apex allowed closer comparisons with the zonate
meristems of gymnosperms and angiosperms.
RTx437 is susceptible to grain mold, but has moderate levels of resistance to rust (caused by Puccinia purpurea Cooke), and zonate
leaf spot (caused by Gloeocercospora sorghi D.
Genetic basis of resistance to zonate
leaf spot disease in forage sorghum.
Tx2911 is moderately susceptible to rust (caused by Puccinia purpurea Cooke), and zonate
leaf spot (caused by Gloeocercospora sorghi Bain & Edgerton ex Deighton).