Four-Strain Fungal Inoculum for American Blueberry Biotization

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Solution Overview

Problem

Existing methods for cultivating American blueberry do not effectively reduce mineral fertilization and enhance crop quality, despite the use of mycorrhizal and ericoid fungi.

Innovation Solution

A biotization method using a specific combination of Xylaria sp. strain KKP 2073p and ericoid fungi strains, including Oidiodendron maius UNIJAG.PL.368, Phialocephala fortinii UNIJAG.PL.382, and Hymenoscyphus sp. UNIJAG.PL.391, is applied, where each strain is separately multiplied and mixed before inoculation, using carriers like wheat bran with diatomaceous earth, to enhance plant growth and tolerance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mycorrhizal fungi and ericoid fungi are used separately, then plant growth is promoted, but the effectiveness in reducing mineral fertilization and enhancing crop quality is insufficient

Engineering Contradiction:
Improvecrop qualityVSAvoidmineral fertilization reduction
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent combines four different fungal strains (Xylaria sp. KKP 2073p, Oidiodendron maius UNIJAG.PL.368, Phialocephala fortinii UNIJAG.PL.382, and Hymenoscyphus sp. UNIJAG.PL.391) into a single inoculum composition. This merging of multiple fungal species with different functional characteristics creates a synergistic effect that simultaneously promotes plant growth and enhances the ability to reduce mineral fertilization, resolving the contradiction between productivity improvement and fertilization reduction.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If a single fungal strain is used for inoculation, then the inoculum preparation is simple, but the plant growth promotion and stress tolerance are limited

Engineering Contradiction:
Improveinoculum preparation simplicityVSAvoidplant growth promotion effectiveness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent creates a composite fungal inoculum by combining four different fungal strains, each contributing unique properties. Xylaria sp. provides lignin degradation capabilities, Oidiodendron maius enhances nutrient uptake, Phialocephala fortinii improves stress tolerance, and Hymenoscyphus sp. promotes root development. This composite approach maintains operational simplicity while significantly enhancing the reliability and effectiveness of plant growth promotion compared to single-strain inocula.

Inventive Principle:
Principle #40Composite materials

3Adaptability or versatility

If ericoid fungi are mixed with silicate rock, then soil quality is improved, but the specific benefit for American blueberry growth and quality is not optimized

Engineering Contradiction:
Improvesoil quality improvementVSAvoidAmerican blueberry crop quality
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent tailors the fungal inoculum composition specifically for American blueberry cultivation needs. The selected fungal strains are chosen for their specific abilities to benefit Ericaceae plants like blueberries - improving nutrient uptake in acidic soils, enhancing stress tolerance, and promoting root development. This localized optimization of fungal strain selection and ratios maximizes the productivity and crop quality benefits for American blueberry specifically, rather than providing generic soil quality improvement.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3982736B1Inoculum for biotization of american blueberry its preparation and use thereof
Publication Date: 2025.10.08 JAGIELLONIAN UNIVERSITY
  • EP3982736B1 patent drawingFigure 1

AI summary

The invention relates to inoculum for biotization of American blueberry, comprising Xylaria sp. strain No. KKP 2073p, deposited in the International Collection of Industrial Microorganisms of the Institute of Agricultural and Food Biotechnology in Warsaw under the number KKP 2073p., a method of preparing the inoculum for biotization of American blueberry and a method of biotization of American blueberry.