Chlorella compositions and methods of use thereof to enhance plant growth

Patent metadata

Field	Value
Publication number	US-11518721-B2
Application number	US-202117387970-A
Country	US
Kind code	B2
Filing date	Jul 28, 2021
Priority date	Jun 9, 2020
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

The present invention provides a mixture comprising: a) a first liquid composition comprising a culture of microalgae, the microalgae comprising whole pasteurized Chlorella cells; and b) a second liquid composition comprising a culture of microalgae, the microalgae comprising lysed pasteurized Chlorella cells; wherein a combination of the first liquid composition and the second liquid composition exhibits synergy. Also provided is a method of treating a plant, a plant part, or the locus surrounding the plant to enhance plant growth, the method comprising applying an effective amount of the mixture.

First claim

What is claimed is:

1. A method of enhancing plant growth or chlorophyll content of a plant, the method comprising:
a) applying an effective amount of a first liquid composition to a locus surrounding the plant, said first liquid composition comprising a culture of microalgae, the microalgae comprising whole pasteurized Chlorella cells; and
b) applying an effective amount of a second liquid composition to a part or propagation material of the plant, said second liquid composition comprising a culture of microalgae, the microalgae comprising lysed pasteurized Chlorella cells,
wherein application of the first liquid composition to the locus surrounding the plant in combination with application of the second liquid composition to the part or propagation material of the plant produces synergistic enhancement of at least one characteristic of the plant.

2. The method of claim 1 , wherein the second liquid composition is applied as a foliar treatment.

3. The method of claim 1 , wherein the second liquid composition is applied as a seed treatment.

4. The method of claim 1 , wherein the whole pasteurized Chlorella cells and/or the lysed pasteurized Chlorella cells are pasteurized at a temperature ranging from 50° C. to 90° C.

5. The method of claim 1 , wherein the lysed pasteurized Chlorella cells are lysed with a bead mill, a shear mill, a pulsed electron field (PEF), high pressure homogenization, an enzyme, a chemical solvent, or a combination thereof.

6. The method of claim 1 , wherein the first liquid composition and/or the second liquid composition further comprise at least one culture stabilizer selected from the group consisting of potassium sorbate, phosphoric acid, ascorbic acid, sodium benzoate, and any combination thereof.

7. The method of claim 1 , wherein the first liquid composition is applied as a soil drench or in-furrow treatment.

8. The method of claim 1 , wherein the plant is a corn plant.

9. The method of claim 1 , wherein the plant is a potato plant.

10. The method of claim 1 , wherein the plant is a lettuce plant.

11. The method of claim 1 , wherein the at least one characteristic is selected from the group consisting of shoot growth, root growth, marketable yield, and chlorophyll content.

Assignees

• Heliae Dev Llc

Inventors

• Chen Chiliang
• Jauregui Edgard
• Sitek Alexander
• Ventre Stephen
• Wyant Karl

Classifications

• C05F11/00 Primary

  Other organic fertilisers · CPC title

• C05F11/08

  Organic fertilisers containing added bacterial cultures, mycelia or the like · CPC title