Abstract: Compositions and method of delivering a molecule to a plant are provided. In an embodiment, an avenic acid transporter is introduced into a plant. The plant may be a non-graminacious or dicotyledonous plant which does not comprise the transporter in the wild type form. The transporter may be modified to increase uptake of avenic acid along with iron chelated by the avenic acid and/or a molecule conjugated with the avenic acid. Further embodiments provide for conjugating the avenic acid with a molecule for uptake and delivery to the plant. In this manner plant health may be improved by uptake of iron where it would otherwise not occur and/or uptake of the conjugated molecule. The molecule may be a molecule that improves health of the plant. Still further embodiments provide for analogs of avenic acid. Embodiments provide for interplanting Avena sativa which natively produces avenic acid with another plant. Additional embodiments provide for time release of avenic acid provided to a plant.

Abstract: Compositions and methods are provided where a plant comprising an avenic acid transporter is planted in a field with a target plant in need of increased iron uptake. The plant comprising the avenic acid transporter in an embodiment further comprises one or more constructs comprising nucleic acid molecules expressing heavy and light chains forming an antibody specific to the avenic acid transporter or functional small peptide and may also include a sequence targeting the apoplast. The antibody or functional small peptide is operably linked to a floral promoter or inducible natural or synthetic promoter. Upon expression regulated by the floral promoter or exposure to the inducing conditions, or both, the plant increases its production of avenic acid transporter antibodies, enters senescence and eventually dies. As a result, the plant is not harvested with the target plant, provides a cover crop, and does not continue to use nutrients, and other resources that benefit the targeted plant.

Abstract: Compositions and method of delivering a molecule to a plant are provided. In an embodiment, an avenic acid transporter is introduced into a plant. The plant may be a non-graminacious or dicotyledonous plant which does not comprise the transporter in the wild type form. The transporter may be modified to increase uptake of avenic acid along with iron chelated by the avenic acid and/or a molecule conjugated with the avenic acid. Further embodiments provide for conjugating the avenic acid with a molecule for uptake and delivery to the plant. In this manner plant health may be improved by uptake of iron where it would otherwise not occur and/or uptake of the conjugated molecule. The molecule may be a molecule that improves health of the plant. Still further embodiments provide for analogs of avenic acid. Embodiments provide for interplanting Avena sativa which natively produces avenic acid with another plant. Additional embodiments provide for time release of avenic acid provided to a plant.