A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 63/00 (2006.01) A01N 43/16 (2006.01) C05F 11/00 (2006.01)
Patent
CA 2338108
Lipo Chitooligosaccharide (LCO) [NodBj-V(C18:1,Mefuc)] isolatedfrom Bradyrhizobium japonicum strain 532C was able to stimulate seed germination/seedling emergence, or in the case of potato, sprouting, of a number of crop plants representing eight distantly related plant families (Poaceae, Fabaceae, Brassicaceae, Cucurbitaceae, Malvaceae, Asteraceae, Chenopodiaceae and Solanaceae) of plants, at 25 and/or at 15°C. It also promoted sprouting potato minitubers. Other LCOs [NodRM-V(C16:2,5) and LCO from R. leguminosarum] were also shown to also display growth-promoting effects on the tested crop plants. The compositions comprising at least one LCO are shown to be effective in promoting growth under both laboratory and field conditions. The invention thus also relates to methods for promoting seed germination and/or seedling emergence and/or growth of plants comprising subjecting the seeds and/or plants to an effective amount of an agricultural composition comprising at least one LCO.
On a découvert que la Lipochitooligosaccharide (LCO) isolée à partir de la souche 532C de Bradyrhizobium japonicum pouvait stimuler la germination et la pousse des plantules dans le cas des pommes de terre, et de différentes cultures de huit familles distinctes de plantes (Poaceae, Fabaceae, Brassicaceae, Cucurbitaceae, Malvaceae, Asteraceae, Chenopodiaceae, et Solanaceae) à 15 et/ou 25 DEG C. Il est également apparu que d'autres LCO [NodRM-V(C16:2,5) et le LCO de R. leguminosarum] avaient des effets favorisant la croissance sur les cultures testées. Des compositions comportant au moins un LCO ont démontré leur action sur la croissance tant en laboratoire qu'en pleine terre. L'invention porte en outre sur des procédés favorisant le germination et/ou l'apparition de plantules et/ou la croissance dans des plantes. Ces procédés consistent à soumettre les graines ou les plantes elles-mêmes à une quantité efficace d'une composition agricole comprenant au moins un LCO.
Bo Pan
Deng Yinghai
Habib Ahsan
Migner Pierre
Prithiviraj Balakrishnan
Bios Agriculture Inc.
Emd Crop Bioscience Canada Inc.
Gowling Lafleur Henderson Llp
University Mcgill
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