Hericium Erinaceus HE015 Strain With Rapid Molecular Identification

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Solution Overview

Problem

Hericium erinaceus strains face challenges with low germplasm resources, genetic similarity among varieties, yield vs. quality contradictions, strain vitality degeneration, and living contaminants, which hinder high-quality cultivation and economic viability.

Innovation Solution

A new Hericium erinaceus strain HE015 is isolated and bred from wild samples, characterized by dense mycelia, fast growth, high yield, short cycle, and strong resistance to living contaminants, with a specific molecular marker (SEQ ID NO.1 and combinations) for identification, and extraction methods for polysaccharides with protective effects on gastric mucosa.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional breeding methods (mutation breeding, crossbreeding) are used to develop new varieties, then new varieties can be obtained, but the genetic backgrounds remain similar and the varieties show little differentiation

Engineering Contradiction:

Improvegenetic diversityVSAvoidgermplasm resource reserves

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent extracts and utilizes wild Hericium erinaceus strains from natural environments, separating them from traditional cultivated varieties. This extraction of wild genetic resources provides fundamentally different genetic backgrounds compared to conventional breeding methods, directly addressing the limitation of genetic similarity in existing varieties.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transitions from the traditional breeding dimension (mutation and crossbreeding of cultivated varieties) to a new dimension by introducing wild strains from natural ecosystems. This dimensional shift in strain selection methodology accesses previously untapped genetic diversity, resolving the contradiction between limited germplasm reserves and need for genetic variety.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If breeding focuses on high yield, then yield increases, but quality deteriorates; if breeding focuses on fine quality, then quality improves, but yield decreases

Engineering Contradiction:

ImproveyieldVSAvoidquality

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent changes the fundamental parameter of strain genetic background by introducing wild strains with entirely different genetic profiles. This parameter change simultaneously optimizes both yield and quality characteristics, breaking the traditional trade-off relationship. The wild strain HE015 exhibits both high productivity and superior quality attributes including dense mycelia, fast growth, and high polysaccharide content.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite breeding strategy that combines the advantages of wild strains (genetic diversity, resistance, quality) with cultivated varieties (adaptability, yield). This composite approach integrates diverse genetic resources to develop varieties that simultaneously achieve high yield and fine quality, resolving the contradiction between these two opposing objectives.

Inventive Principle:

Principle #40Composite materials

3Productivity

If scale production is implemented, then production volume increases, but strain vitality degenerates and living contaminants increase

Engineering Contradiction:

Improveproduction volumeVSAvoidstrain vitality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary selection and screening of wild strains for superior vitality and contamination resistance before scale production. Strain HE015 was pre-selected for its exceptional mycelial density, growth speed, and anti-contaminant capabilities. This preliminary optimization ensures that strains used in scale production maintain high vitality, preventing degradation that normally occurs during large-scale cultivation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent develops robust inoculum systems using highly resistant wild strains that can withstand scale production conditions. The strong vitality and contamination resistance of strains like HE015 allow them to serve as reliable inoculum sources that maintain effectiveness throughout the production process, eliminating the need for frequent strain replacement and ensuring consistent production quality at scale.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS20250333805A1Hericium erinaceus strain he015, molecular markers and uses thereof

Publication Date: 2025.10.30 INFINITUS (CHINA) CO LTD

AI summary

The present invention discloses a new Hericium erinaceus strain HE015, and a molecular marker and use thereof. Wild fungi are widely collected throughout China and subjected to systematic strain breeding to obtain a new fine-quality Hericium erinaceus strain HE015. The strain HE015 was preserved in Guangdong Microbial Culture Collection Center on May 12, 2022 with an accession number of GDMCC No: 62464. The genetic background of the strain is obviously different from that of the existing Hericium erinaceus species; therefore, the new strain is of important value and significance in supplementing fine-quality cultivated Hericium erinaceus varieties, meeting the market demand and promoting high-quality development of the industry. The present invention further provides a specific molecular marker and a rapid detection method for detecting and identifying the strain HE015.