Sulfur-oxidizing plant growth promoting rhizobacteria...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 1/20 (2006.01) A01C 1/06 (2006.01) A01H 5/10 (2006.01) A01N 63/00 (2006.01) A01P 3/00 (2006.01) A01P 21/00 (2006.01)

Patent

CA 2592992

Described herein is the isolation and identification of a sulfur oxidizing plant growth promoting rhizobacteria: RAY12, identified as Achromobacter piechaudii (ATCC PTA-4231). The PGPR acts to oxidize elemental sulfur which in turn provides sulfate for the plants. As a result of this arrangement, plants are able to grow more efficiently and effectively and have enhanced growth characteristics, for example, but by no means limited to, increased vigor, early emergence, increased emergence rate, increased biomass, increased plant leaf area, higher crop yield, increased pod number, increased pod weight, increased root biomass, increased seed weight, increased macro- and micro-nutrient uptake and the like. The sulfur-oxidizing PGPR may be applied to seeds, seed pieces, carrier materials, roots and planting soil.

La séparation et l'identification d'une rhyzobactérie oxydant le soufre et favorisant la croissance végétale (RAY12), identifiée en tant que Achromobacter piechaudii (ATCC PTA-4231) sont divulguées. La RFCV a pour effet d'oxyder le soufre élémentaire qui fournit ensuite du sulfate pour les plantes. Ainsi, les plantes peuvent croître de façon plus efficace et plus effective, et elles ont des caractéristiques de croissance améliorées, par exemple, mais sans que ce soit limitatif, une plus grande vigueur, une levée plus rapide, un taux de levée accru, une biomasse supérieure, une plus grande superficie foliaire, un meilleur rendement des cultures, un nombre accru de gousses, un poids accru des gousses, une augmentation de la biomasse des racines, une augmentation du poids des graines, une hausse de l'absorption des micronutriments et des macronutriments, et autres. La RFCV oxydant le soufre peut être appliquée à des semences, à des fragments de semences, à des matériaux porteurs, à des racines et au sol servant à la plantation.

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