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Anne Silene Ponstein

Researcher at Syngenta

Publications -  14
Citations -  740

Anne Silene Ponstein is an academic researcher from Syngenta. The author has contributed to research in topics: Chitinase & Phytase. The author has an hindex of 9, co-authored 14 publications receiving 718 citations.

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Journal ArticleDOI

Only Specific Tobacco (Nicotiana tabacum) Chitinases and [beta]-1,3-Glucanases Exhibit Antifungal Activity.

TL;DR: The extracellular washing fluid from leaves of transgenic plants expressing either of the secreted class I enzymes exhibited antifungal activity on F. solani germlings in vitro comparable to that of the purified vacuolar class I proteins.
Journal ArticleDOI

Isolation and characterisation of a class of carbohydrate oxidases from higher plants, with a role in active defence

TL;DR: Extracts from salicylic acid-treated lettuce and sunflower leaves displayed very potent antimicrobial activity against a set of phytopathogens, and transgenic plants overexpressing Ha-CHOX displayed enhanced resistance to infection by this pathogen, and the resistance level was proportional to enzyme expression.
Journal ArticleDOI

Stable expression of Phytase (phyA) in canola (Brassica napus) seeds: towards a commercial product

TL;DR: In the expressionrange studied, phytase expression was gene-dosage dependent and the accumulation ofphytase appeared to be fairly stable.
Patent

Plasmids for plant transformation and method for using the same

TL;DR: In this article, the authors proposed an Agrobacterium mediated plant transformation, especially to transformation of plants with T-DNA, where read-through at the borders is prohibited, which can be done by inhibition of transfer of vector DNA to the plant cell by creating DNA binding sites outside the T-borders.
Patent

Antifungal proteins, dna coding therefore, and hosts incorporating same

TL;DR: In this article, an isolated protein obtainable from a plant source which has antifungal activity, specifically anti-Phytophthora activity and/or anti-Pythium activity and a molecular weight of about 55-65 kDa as judged by SDS PAGE-electrophoresis, was presented.