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Xinzhi Ni
Researcher at Agricultural Research Service
Publications - 141
Citations - 3290
Xinzhi Ni is an academic researcher from Agricultural Research Service. The author has contributed to research in topics: Aphid & Aphididae. The author has an hindex of 27, co-authored 126 publications receiving 2585 citations. Previous affiliations of Xinzhi Ni include United States Department of Agriculture & University of Georgia.
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Journal ArticleDOI
Identity, regulation, and activity of inducible diterpenoid phytoalexins in maize
Eric A. Schmelz,Fatma Kaplan,Alisa Huffaker,Nicole J. Dafoe,Martha M. Vaughan,Xinzhi Ni,James R. Rocca,Hans T. Alborn,Peter E. A. Teal +8 more
TL;DR: The presence of diterpenoid defenses in maize is established and enables a more detailed analysis of their biosynthetic pathways, regulation, and crop defense function.
Journal ArticleDOI
Novel Acidic Sesquiterpenoids Constitute a Dominant Class of Pathogen-Induced Phytoalexins in Maize
Alisa Huffaker,Fatma Kaplan,Martha M. Vaughan,Nicole J. Dafoe,Xinzhi Ni,James R. Rocca,Hans T. Alborn,Peter E. A. Teal,Eric A. Schmelz +8 more
TL;DR: Zealexins exhibit antifungal activity against numerous phytopathogenic fungi at physiologically relevant concentrations and indicate an important cooperative role of terpenoid phytoalexin in maize biochemical defense.
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Potential shortfall of pyramided transgenic cotton for insect resistance management
Thierry Brévault,Shannon Heuberger,Min Zhang,Christa Ellers-Kirk,Xinzhi Ni,Luke Masson,Xianchiun Li,Bruce E. Tabashnik,Yves Carrière +8 more
TL;DR: Analysis of results from 21 selection experiments with eight species of lepidopteran pests indicates that some cross-resistance typically occurs between Cry1A and Cry2A toxins, and incorporation of empirical data into simulation models shows that the observed deviations from ideal conditions could greatly reduce the benefits of the pyramid strategy.
Journal ArticleDOI
Oxidative responses of resistant and susceptible cereal leaves to symptomatic and nonsymptomatic cereal aphid (Hemiptera: Aphididae) feeding.
Xinzhi Ni,Sharron S. Quisenberry,Tiffany Heng-Moss,John Markwell,Gautam Sarath,Robert V. Klucas,Frederick P. Baxendale +6 more
TL;DR: Different enzymatic responses in wheat, barley, and oat to D. noxia and R. padi feeding indicate the cereals have different mechanisms of aphid resistance, suggesting oxidative stress in plants is likely.
Journal ArticleDOI
Maize death acids, 9-lipoxygenase–derived cyclopente(a)nones, display activity as cytotoxic phytoalexins and transcriptional mediators
Shawn A. Christensen,Alisa Huffaker,Fatma Kaplan,James Sims,Sebastian Ziemann,Gunther Doehlemann,Lexiang Ji,Robert J. Schmitz,Michael V. Kolomiets,Hans T. Alborn,Naoki Mori,Georg Jander,Xinzhi Ni,Ryan C. Sartor,Sara Overstreet Byers,Zaid Abdo,Eric A. Schmelz +16 more
TL;DR: 10-OPEA accumulation becomes wound inducible within fungal-infected tissues and at physiologically relevant concentrations acts as a phytoalexin by suppressing the growth of fungi and herbivores including Aspergillus flavus, Fusarium verticillioides, and Helicoverpa zea.