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The American chestnut (Castanea dentata) is a large, fast-growing deciduous tree of the beech family native to eastern North America. [3] As is true of all species in the genus Castanea, the American chestnut produces burred fruit with edible nuts. The American chestnut was once one of the most important forest trees throughout its range, [4][5 ...
The mission of The American Chestnut Foundation (TACF) is to restore the American chestnut tree to the forests of Eastern North America by breeding genetically diverse blight-resistant trees, evaluating various approaches to the management of chestnut pests and pathogens, and reintroducing the trees into the forest in an ecologically acceptable manner.
In December 2023, it was announced that there had been a mishap and any material known as "Darling 58" was actually "Darling 54". [1] [22] Darling 54 is a transgenic American chestnut tree also modified with the 35S:OxO construct. The difference between D58 and D54 is that D54 has the 35S:OxO construct inserted into a coding sequence within its ...
Colossal (chestnut) The chestnut cultivar Colossal originates from the USA - California Central Valley. It is a Castanea sativa × Castanea crenata hybrid that is cold hardy to −20 °F (−29 °C). The tree can be grown in Zones 4-8, blooms early, and is pollen sterile. Colossal is chestnut blight, root rot and kernel rot susceptible.
Leaf spot is the most common disease for chestnut trees (Mycosphaerella maculiformis). It is known as cylindrosporium leaf spot disease, after its summer conidium form Cylindrosporium castaneae. The pathogens spend the winter in the white spots of the fallen leaves. At spring time, it reinfects the new leaves.
Aesculus glabra, commonly known as Ohio buckeye, [2] Texas buckeye, [3] fetid buckeye, [3] and horse chestnut [3] is a species of tree in the soapberry family (Sapindaceae) native to North America. Its natural range is primarily in the Midwestern and lower Great Plains regions of the United States, extending southeast into the geological Black ...