Pollen Drying Moisture Feedback for Long-Term Cryostorage
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Solution Overview
Problem
Current methods for long-term pollen storage of recalcitrant or monocot plants are inefficient, leading to rapid viability loss and desiccation damage, hindering breeding and hybrid seed production by requiring synchronized plant development and being labor-intensive.
Innovation Solution
A system and method for real-time moisture content measurement during pollen drying, using instruments or sensors to achieve a desired moisture content, followed by cryopreservation at specific temperatures, ensuring reproducible pollen viability and fertility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional drying methods are used for recalcitrant pollen, then the drying process is simple and quick, but the pollen viability is lost due to irreversible desiccation
Solution Approach 1:
The drying system incorporates real-time monitoring of pollen moisture content through sensors that provide feedback to the control system. This closed-loop feedback mechanism allows the system to adjust drying parameters dynamically, preventing over-drying and irreversible desiccation while maintaining pollen viability throughout the drying process.
Solution Approach 2:
The patent replaces traditional mechanical drying methods with a controlled gas flow system that uses instruments to measure humidity and moisture content. This substitution enables precise control over the drying environment, replacing brute-force mechanical drying with a sophisticated measurement and control approach that preserves pollen viability.
2Reliability
If moisture content is not monitored during drying, then the drying process is simple and fast, but the pollen suffers from irreversible desiccation
Solution Approach 1:
Real-time moisture content measurement instruments provide continuous feedback during the drying process, enabling the system to detect when the desired moisture level is reached and adjust or stop the drying process accordingly, preventing irreversible desiccation while maintaining pollen viability.
Solution Approach 2:
The drying system incorporates self-monitoring capabilities through integrated sensors and instruments that automatically track moisture content and humidity levels, allowing the system to self-regulate the drying process without external intervention while ensuring pollen viability is maintained.
3Productivity
If manual cross-pollination procedures are used, then the process requires synchronized plant development and significant labor, but no special equipment is needed
Solution Approach 1:
The system performs preliminary drying and storage of pollen before the actual pollination event. By preparing and preserving pollen in advance under controlled conditions, the system eliminates the need for synchronized plant development timing and reduces labor requirements during the critical pollination window, thereby improving breeding efficiency.
Solution Approach 2:
The patent introduces an intermediary storage system that decouples the pollen production and pollination events. This intermediary repository allows pollen to be stored and preserved independently of the female plant's receptivity timing, serving as a buffer that simplifies the cross-pollination process and improves overall breeding workflow efficiency.
4Manufacturing precision
If drying gas flow is not controlled, then the system is simple to operate, but the pollen cannot reach desired moisture content without irreversible desiccation
Solution Approach 1:
The drying gas flow system incorporates feedback control through humidity sensors and moisture content measurement instruments that monitor the drying process in real-time. The control system automatically adjusts gas flow rates based on measured parameters, achieving precise moisture content control while maintaining ease of operation through automated regulation.
Solution Approach 2:
The drying system features self-regulating gas flow control mechanisms that automatically adjust drying parameters based on real-time moisture content measurements. This self-service capability enables precise moisture control without requiring constant manual intervention, maintaining both manufacturing precision and operational simplicity.
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
Enables reliable long-term pollen storage, allowing cross-pollination without temporal or spatial constraints, improving breeding efficiency and hybrid seed production by maintaining pollen viability and fertility.
Implementation Method 1
a chamber for drying pollen, the chamber comprising an inlet and an outlet and being configured to permit a drying gas to contact pollen retained within the chamber when the drying gas passes from the inlet through the chamber to the outlet
Data Source
AI summary
The invention provides novel systems and methods for drying and storing pollen. The invention further provides novel methods for delivering pollen to a recipient plant. The systems provided herein include a chamber configured to permit a drying gas to contact pollen, a source for the drying gas, and an instrument configured to measure the humidity of the drying gas or a sensor configured to measure the moisture content of the pollen. The methods provided herein include methods of drying pollen to a desired moisture content, methods of storing dried pollen, and methods of applying the dried or stored pollen to at least a recipient plant, thereby pollinating the recipient plant with the dried or stored pollen from the donor plant.