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Article

Alternaria alternata as a causal agent of rose black spot: resistance screening and structural defense mechanisms in Rosagermplasm.

BMC plant biology - 24 Jul 2026

Zhou Rui, Wang Hailan, Zarif Hmmam, Zhong Cheng, Fan Chunguo, Yuan Guozhen, Chang Yufei, Liu Hongchi, Lu Jun, Liu Jinyi, Wang Changquan

Abstract excerpt

BACKGROUND: Black spot is one of the most destructive foliar diseases of roses worldwide, causing severe defoliation and significant economic losses, particularly under humid conditions. Although Diplocarpon rosae is the primary causal agent globally, members of the Alternaria alternata species complex have emerged as important pathogens in Chinese rose production regions. This study aimed to evaluate the...

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PMID: 42533318
DOI: 10.1186/s12870-026-09440-7
PMCID: PMC13420848

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