Endophyte Seed Coatings for Colonization Consistency

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current endophyte seed coating products face challenges such as high variability, inconsistent colonization, low performance across crop cultivars, and inability to confer benefits to elite crop varieties under field conditions, particularly in major crops like corn, wheat, and barley.

Innovation Solution

Development of synthetic preparations comprising specific fungal and bacterial endophytes that enhance seed vitality and plant health by promoting germination, tolerance to environmental stresses, and improved agricultural traits through colonization of cortical cells in seeds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If endophyte seed coating products are used, then plant health and stress tolerance are improved, but colonization consistency and performance reliability are poor

Engineering Contradiction:
Improvecolonization consistencyVSAvoidperformance across crop cultivars
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by optimizing multiple factors including endophyte strain selection, inoculation timing, application methods, and environmental conditions to achieve consistent colonization across different crop cultivars. The patent identifies specific parameter ranges and combinations that maximize colonization reliability while maintaining adaptability to various crop types.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite materials by combining multiple endophyte strains with complementary functions, integrating them with compatible carriers and adjuvants to create a synergistic coating formulation. This composite approach enhances both colonization consistency and broad-spectrum adaptability across different crop varieties.

Inventive Principle:
Principle #40Composite materials

2Productivity

If endophytes are applied to enhance seed vitality, then germination vigor is improved, but colonization uniformity decreases

Engineering Contradiction:
Improvegermination vigorVSAvoidcolonization uniformity
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent applies preliminary action by pre-conditioning endophytes before application, pre-treating seeds to enhance receptivity, and establishing optimal environmental conditions prior to inoculation. This preliminary preparation ensures both high germination vigor and uniform colonization distribution across the seed population.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses intermediaries such as carrier materials, adjuvants, and protective matrices that facilitate even distribution of endophytes across seed surfaces while maintaining their viability. These intermediaries act as mediators that promote uniform colonization without compromising germination vigor.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If specific endophyte strains are used for elite crop varieties, then yield enhancement is achieved, but field condition performance is limited

Engineering Contradiction:
Improveyield enhancementVSAvoidfield condition tolerance
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by selecting and combining endophyte strains that perform multiple functions simultaneously - promoting growth, enhancing stress tolerance, and improving yield. This multi-functional approach allows the same endophyte formulation to deliver yield enhancement across elite crop varieties while maintaining adaptability to diverse field conditions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The described compositions significantly improve seed germination rates, vigor, and tolerance to abiotic and biotic stresses, leading to increased yield, faster growth, and enhanced stress tolerance in plants, including major crops like wheat, barley, and corn.

Implementation Method 1

Endophyte is the term first coined by de Bary [1866] defining those microbes that colonize asymptomatically plant tissues

Methodology Applied
Scientific EffectSymbiosis:

Implementation Method 2

Endophytes largely determine plant cell and whole plant genome regulation, including the plant's vital cycles: (i) seed pre- and post-germination events (mycovitalism)

Methodology Applied
Scientific EffectMycovitalism:

Implementation Method 3

Many are capable of conferring plant tolerance to abiotic stressors or can be used by the plant for defense against pathogenic fungi and bacteria

Methodology Applied
Scientific EffectStress tolerance:

Implementation Method 4

Endophytes largely determine plant cell and whole plant genome regulation, including the plant's vital cycles: (ii) plant nutrient uptake and growth-promoting mechanisms (mycoheterotrophism)

Methodology Applied
Scientific EffectMycoheterotrophism:

Implementation Method 5

Endophytes largely determine plant cell and whole plant genome regulation, including the plant's vital cycles: (iii) plant environmental stress tolerance and induced systemic resistance against diseases and pests (mycosymbionticism)

Methodology Applied
Scientific EffectInduced systemic resistance:

Data Source

PatentUS11076573B2Endophytic microbial symbionts in plant prenatal care
Publication Date: 2021.08.03 UNIVERSITY OF SASKATCHEWAN
  • US11076573B2 patent drawing
  • US11076573B2 patent drawing
  • US11076573B2 patent drawing

AI summary

The present disclosure provides compositions comprising novel endophytes capable of promoting germination endophytes that have a symbiotic relationship with plants. The present disclosure further provides methods of improving seed vitality, biotic and abiotic stress resistance, plant health and yield under both stressed and unstressed environmental conditions, comprising inoculating a seed with the novel endophyte strains and cultivating a plant therefrom.