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Brenneria salicis Associated with Watermark Disease Symptoms on Salix alba in Italy.

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From 1999 to 2010, withering of white willow was observed on trees growing along roads or irrigation canals in Torino, Alessandria, and Vercelli provinces of Italy, with incidence varying from 15, 25, and 30%, respectively. In spring and autumn 2008, six samples from withering branches with bark

Hydrogen sulfide promotes root organogenesis in Ipomoea batatas, Salix matsudana and Glycine max.

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In this report, we demonstrate that sodium hydrosulfide (NaHS), a hydrogen sulfide (H(2)S) donor, promoted adventitious root formation mediated by auxin and nitric oxide (NO). Application of the H(2)S donor to seedling cuttings of sweet potato (Ipomoea batatas L.) promoted the number and length of

First Report of Branch Canker Caused by Cytospora atrocirrhata on Populus sp. and Salix sp. in China.

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Cytospora Ehrenb. species and their related teleomorphs are common inhabitants on over 85 species of plants throughout the world, and some of these pathogens have been associated with stem canker and dieback diseases. In July to August of 2011, samples of Cytospora canker were collected from Populus

First Report of Leaf Blotch of Salix babylonica Caused by Botryosphaeria dothidea in China

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Salix babylonica L. (weeping willow) is an important ornamental tree commonly planted in China. Since 2018, a new disease with a high incidence has been observed on S. babylonica at the campus of Nanjing Forestry University (NFU), Nanjing, Jiangsu, China. The symptoms began as small dark brown

Transcriptome analysis of contrasting resistance to herbivory by Empoasca fabae in two shrub willow species and their hybrid progeny

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Short rotation woody biomass cultivars developed from fast-growing shrub species of willow (Salix spp.) have superior properties as perennial energy crops for the Northeast and Midwest US. However, the insect pest potato leafhopper (PLH) Empoasca fabae (Harris) can cause serious damage and reduce

First Report of Shining Willow as a Host Plant for Septoria musiva.

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During the summer of 2001, leaf spots resembling those caused by Septoria musiva Peck. were observed on shining willow (Salix lucida Mühl. subsp. lucida) at Leclerville, Québec, Canada (46°34'19″N,71°59'35″W). Affected leaves had brown, necrotic leaf spots (>5mm in diameter) surrounded by a

Light Regulation of Gibberellin Biosynthesis and Mode of Action.

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Some phenotypic effects produced in plants by light are very similar to those induced by hormones. In this review, the light-gibberellin (GA) interaction in germination, de-etiolation, stem growth, and tuber formation (process regulated by GAs) are discussed. Germination of lettuce and Arabidopsis

First Report of Cytospora Canker Caused by Cytospora chrysosperma on White Poplar in Israel.

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A new disease, causing death of mature white poplar trees (Populus alba L.), was observed in Hulla Valley in northern Israel in the summer of 2002. The affected branches turned yellowish brown, and the inner bark turned black. The bark dried out and separated from the underlying wood. Later,

First Report of Twig Canker on Willow Caused by Colletotrichum acutatum in California.

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Following prolonged spring rains and cool summer weather in 2010, mature weeping willow trees (Salix babylonica L.) growing next to a manmade lake in Marin County, CA, showed symptoms of a previously undescribed disease. During summer, small branches developed dark brown to black, sunken cankers.

First Report of Leaf Spot of Phoenix theophrasti Caused by Paraconiothyrium variabile in Greece.

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In the spring of 2011, a severe leaf spot disease of Phoenix theophrasti was observed in the vicinity of Heraklion (Crete), Greece. Initial symptoms were small, round-ovoid spots of varying shades of brown on the leaves, later being transformed into oblong streaks (average dimensions 7.3 ± 1.0 × 3.3

First report of Neovaginatispora fuckelii causing leaf spot on Phoenix canariensis

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Phoenix canariensis Chabaud is a vital ornamental and widely planted in the urban landscape of China (Lan et al. 2019). In December 2019, six of seven P. canariensis plants exhibited typical symptoms of leaf spot in Chengdu campus of Sichuan Agricultural University in Sichuan, China,

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