公开(公告)号：US20150204787A1

公开(公告)日：2015-07-23

申请号：US14404338

申请日：2013-05-30

Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

Inventor： David Kramer ,  Jeffrey Cruz ,  Christopher Hall ,  William Kent Kovac ,  Robert Zegarac

IPC: G01N21/64

CPC classification number: G01N21/6486 ,  G01N21/6408 ,  G01N21/6456 ,  G01N33/0098 ,  G01N33/025 ,  G01N2021/635 ,  G01N2021/8466 ,  G01N2201/0221 ,  G01N2201/0627 ,  G01N2201/0628

Abstract: Chlorophyll fluorescence may be studied in response to a variety of environmental cues or conditions by growing phototrophic organisms under actinic illumination. Such illumination may be punctuated or disrupted to gain information about the photosynthetic properties or performance of the phototrophic organism. Instruments or devices for carrying out the method are also described.

Abstract translation: 可以通过在光化照射下生长光养生物来响应各种环境线索或条件来研究叶绿素荧光。 这种照明可能被打断或破坏以获得关于光合生物的光合性质或性能的信息。 还描述了用于执行该方法的仪器或装置。

公开(公告)号：US10473592B2

公开(公告)日：2019-11-12

申请号：US15569570

申请日：2016-04-29

Applicant: Board of Trustees of Michigan State University

Inventor： David Kramer ,  Jin Chen ,  Elisabeth Ostendorf ,  Lei Xu ,  Jeffrey Cruz ,  Jeremy J. Brodersen

IPC: G01N21/64 ,  A01G7/00 ,  G01N21/63 ,  G01N21/84

Abstract: Methods of determining and characterizing photosynthesis in plant parts of one or more plants includes capturing a plurality of images of the plant parts of the one or more plants with a sensor are provided. Fluorescence of the plant parts of the one or more plants can be measured by storing a sensor image of observed fluorescence. Light absorbed by the plant parts of the one or more plants can be estimated by observing red and/or infrared reflectance of the plant parts. A characteristic of photosynthesis such as linear electron flow in plant parts of the one or more plants can be derived using the measured fluorescence of the plant parts, the reflectance and the light absorbed by the plant parts, and/or the three-dimensional model comprising the plant parts of the one or more plants. Related apparatus and systems are also provided.

公开(公告)号：US09429521B2

公开(公告)日：2016-08-30

申请号：US14404338

申请日：2013-05-30

Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

Inventor： David Kramer ,  Jeffrey Cruz ,  Christopher Hall ,  William Kent Kovac ,  Robert Zegarac

IPC: G01N21/64 ,  G01N33/02 ,  G01N21/63 ,  G01N21/84

CPC classification number: G01N21/6486 ,  G01N21/6408 ,  G01N21/6456 ,  G01N33/0098 ,  G01N33/025 ,  G01N2021/635 ,  G01N2021/8466 ,  G01N2201/0221 ,  G01N2201/0627 ,  G01N2201/0628

Abstract: Chlorophyll fluorescence may be studied in response to a variety of environmental cues or conditions by growing phototrophic organisms under actinic illumination. Such illumination may be punctuated or disrupted to gain information about the photosynthetic properties or performance of the phototrophic organism. Instruments or devices for carrying out the method are also described.

Abstract translation: 可以通过在光化照射下生长光养生物来响应各种环境线索或条件来研究叶绿素荧光。 这种照明可能被打断或破坏以获得关于光合生物的光合性质或性能的信息。 还描述了用于执行该方法的仪器或装置。

公开(公告)号：US20200024570A1

公开(公告)日：2020-01-23

申请号：US16445781

申请日：2019-06-19

Applicant: Board of Trustees of Michigan State University

Inventor： David Kramer ,  Ben F. Lucker

IPC: C12N1/12 ,  C12Q1/6895

Abstract: Described herein are methods for generating robust algae strains that can grow under stressful environmental conditions.

公开(公告)号：US20180313760A1

公开(公告)日：2018-11-01

申请号：US15569570

申请日：2016-04-29

Applicant: Board of Trustees of Michigan State University

Inventor： David Kramer ,  Jin Chen ,  Elisabeth Ostendorf ,  Lei Xu ,  Jeffrey Cruz ,  Jeremy J. Brodersen

IPC: G01N21/64 ,  A01G7/00

CPC classification number: G01N21/6486 ,  A01G7/00 ,  G01N21/6456 ,  G01N2021/635 ,  G01N2021/8466

Abstract: Methods of determining and characterizing photosynthesis in plant parts of one or more plants includes capturing a plurality of images of the plant parts of the one or more plants with a sensor are provided. Fluorescence of the plant parts of the one or more plants can be measured by storing a sensor image of observed fluorescence. Light absorbed by the plant parts of the one or more plants can be estimated by observing red and/or infrared reflectance of the plant parts. A characteristic of photosynthesis such as linear electron flow in plant parts of the one or more plants can be derived using the measured fluorescence of the plant parts, the reflectance and the light absorbed by the plant parts, and/or the three-dimensional model comprising the plant parts of the one or more plants. Related apparatus and systems are also provided.