Artificial Seed Preparation for Symbiota Stability
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Solution Overview
Problem
Current methods for breeding symbiotic organisms with endophytes, such as fungal endophytes or bacterial microbiomes, face challenges in identifying, isolating, and characterizing these organisms, leading to low inoculation frequencies and instability in elite germplasm, which hinders the development of desirable agronomic and veterinary traits.
Innovation Solution
A method for preparing artificial seeds by surface-sterilizing plant seeds, isolating embryos, inoculating them with symbionts, and coating with a suitable material like alginate to enhance symbiotic compatibility and performance, allowing for early selection of desired symbiotic combinations and improved stability of endophyte associations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cross-breeding techniques are used to breed grass varieties and select genotypes for superior characteristics, then desired agronomic traits can be achieved, but the process is time-consuming and requires monitoring performance over multiple years
Solution Approach 1:
The patent applies preliminary action by pre-inoculating grass genotypes with endophytes during the embryo isolation and artificial seed formation stage, before field evaluation. This allows endophyte associations to be established early in the breeding process, eliminating the need for time-consuming multi-year monitoring to assess endophyte stability and alkaloid production. The artificial seed technology enables researchers to screen for desired characteristics ab initio, significantly accelerating the breeding timeline while ensuring reliable endophyte associations.
2Productivity
If a single endophyte is deployed in experimental synthetic varieties, then evaluation of agronomic performance can be conducted, but the single endophyte may not show vegetative and intergenerational stability and may cause animal toxicoses
Solution Approach 1:
The patent applies dynamics by enabling flexible manipulation of endophyte inoculation during the artificial seed formation process. Researchers can adjust inoculation frequencies, select different endophyte strains, and create varied endophyte combinations based on desired outcomes. This dynamic approach allows optimization of inoculation parameters to achieve both high inoculation frequencies and stable endophyte associations that produce desired alkaloid profiles without animal toxicoses.
Solution Approach 2:
The patent applies parameter changes by modifying physical and chemical parameters during the artificial seed formation process, including sterilization conditions, embryo isolation parameters, and inoculation protocols. These parameter adjustments enable consistent establishment of endophyte associations with high stability and desired metabolic profiles, resolving the contradiction between achieving high inoculation frequencies and maintaining long-term endophyte stability.
3Reliability
If beneficial endophytes with desired metabolite profiles are introduced into commercial grass varieties, then improved tolerance to stress and resistance to pests can be achieved, but difficulties in artificial breeding lead to low inoculation frequencies
Solution Approach 1:
The patent applies the intermediary principle by using artificial seeds as a mediator between beneficial endophytes and commercial grass varieties. The artificial seed system provides a controlled environment that facilitates efficient endophyte inoculation and establishment, overcoming the low inoculation frequencies associated with traditional breeding methods. This intermediary approach enables high-frequency introduction of desired endophytes while maintaining symbiotic compatibility and stability.
Data Source
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AI summary
The present invention relates to new methods of selecting and breeding organisms, in particular organisms which exhibit symbiotic behaviour with symbionts such as fungal endophytes or epiphytes or bacterial microbiome in plants, and to new organisms and symbiota developed thereby. More particularly, the present invention provides artificial seeds comprising symbiota, and methods for preparing and using such artificial seeds, as well as plants, plant seeds and other plant parts derived from artificial seeds or symbiont-containing plants of the present invention.