Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition
Synthetic auxins such as 1-naphthalene acetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) have been extensively used in plant tissue cultures and as herbicides because they are chemically more stable and potent than most endogenous auxins. A tool for rapid in planta detection of these comp...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/159822 |
| _version_ | 1826112470461186048 |
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| author | Ang, Mervin Chun-Yi Dhar, Niha Khong, Duc Thinh Lew, Tedrick Thomas Salim Park, Minkyung Sarangapani, Sreelatha Cui, Jianqiao Dehadrai, Aniket Singh, Gajendra Pratap Chan-Park, Mary B. Sarojam, Rajani Strano, Michael |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Ang, Mervin Chun-Yi Dhar, Niha Khong, Duc Thinh Lew, Tedrick Thomas Salim Park, Minkyung Sarangapani, Sreelatha Cui, Jianqiao Dehadrai, Aniket Singh, Gajendra Pratap Chan-Park, Mary B. Sarojam, Rajani Strano, Michael |
| author_sort | Ang, Mervin Chun-Yi |
| collection | NTU |
| description | Synthetic auxins such as 1-naphthalene acetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) have been extensively used in plant tissue cultures and as herbicides because they are chemically more stable and potent than most endogenous auxins. A tool for rapid in planta detection of these compounds will enhance our knowledge about hormone distribution and signaling and facilitate more efficient usage of synthetic auxins in agriculture. In this work, we show the development of real-time and nondestructive in planta NAA and 2,4-D nanosensors based on the concept of corona phase molecular recognition (CoPhMoRe), to replace the current state-of-the-art sensing methods that are destructive and laborious. By designing a library of cationic polymers wrapped around single-walled carbon nanotubes with general affinity for chemical moieties displayed on auxins and its derivatives, we developed selective sensors for these synthetic auxins, with a particularly large quenching response to NAA (46%) and a turn-on response to 2,4-D (51%). The NAA and 2,4-D nanosensors are demonstrated in planta across several plant species including spinach, Arabidopsis thaliana (A. thaliana), Brassica rapa subsp. chinensis (pak choi), and Oryza sativa (rice) grown in various media, including soil, hydroponic, and plant tissue culture media. After 5 h of 2,4-D supplementation to the hydroponic medium, 2,4-D is seen to accumulate in susceptible dicotyledon pak choi leaves, while no uptake is observed in tolerant monocotyledon rice leaves. As such, the 2,4-D nanosensor had demonstrated its capability for rapid testing of herbicide susceptibility and could help elucidate the mechanisms of 2,4-D transport and the basis for herbicide resistance in crops. The success of the CoPhMoRe technique for measuring these challenging plant hormones holds tremendous potential to advance the plant biology study. |
| first_indexed | 2024-10-01T03:07:33Z |
| format | Journal Article |
| id | ntu-10356/159822 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:07:33Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1598222022-07-04T03:57:08Z Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition Ang, Mervin Chun-Yi Dhar, Niha Khong, Duc Thinh Lew, Tedrick Thomas Salim Park, Minkyung Sarangapani, Sreelatha Cui, Jianqiao Dehadrai, Aniket Singh, Gajendra Pratap Chan-Park, Mary B. Sarojam, Rajani Strano, Michael School of Chemical and Biomedical Engineering Singapore-MIT Alliance for Research and Technology Engineering::Bioengineering Plant Nanobionics Nanosensors Synthetic auxins such as 1-naphthalene acetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) have been extensively used in plant tissue cultures and as herbicides because they are chemically more stable and potent than most endogenous auxins. A tool for rapid in planta detection of these compounds will enhance our knowledge about hormone distribution and signaling and facilitate more efficient usage of synthetic auxins in agriculture. In this work, we show the development of real-time and nondestructive in planta NAA and 2,4-D nanosensors based on the concept of corona phase molecular recognition (CoPhMoRe), to replace the current state-of-the-art sensing methods that are destructive and laborious. By designing a library of cationic polymers wrapped around single-walled carbon nanotubes with general affinity for chemical moieties displayed on auxins and its derivatives, we developed selective sensors for these synthetic auxins, with a particularly large quenching response to NAA (46%) and a turn-on response to 2,4-D (51%). The NAA and 2,4-D nanosensors are demonstrated in planta across several plant species including spinach, Arabidopsis thaliana (A. thaliana), Brassica rapa subsp. chinensis (pak choi), and Oryza sativa (rice) grown in various media, including soil, hydroponic, and plant tissue culture media. After 5 h of 2,4-D supplementation to the hydroponic medium, 2,4-D is seen to accumulate in susceptible dicotyledon pak choi leaves, while no uptake is observed in tolerant monocotyledon rice leaves. As such, the 2,4-D nanosensor had demonstrated its capability for rapid testing of herbicide susceptibility and could help elucidate the mechanisms of 2,4-D transport and the basis for herbicide resistance in crops. The success of the CoPhMoRe technique for measuring these challenging plant hormones holds tremendous potential to advance the plant biology study. Agency for Science, Technology and Research (A*STAR) National Research Foundation (NRF) Singapore-MIT Alliance for Research and Technology (SMART) This research was supported by the National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) program. The Disruptive & Sustainable Technology for Agricultural Precision (DiSTAP) is an interdisciplinary research group of the Singapore-MIT Alliance for Research and Technology (SMART) Center. T.T.S.L. was supported on a graduate fellowship by the Agency of Science, Research and Technology, Singapore. M.P. is grateful for the support of the Samsung scholarship. A.D. was supported on the Singapore-MIT undergraduate research fellowship. 2022-07-04T03:57:08Z 2022-07-04T03:57:08Z 2021 Journal Article Ang, M. C., Dhar, N., Khong, D. T., Lew, T. T. S., Park, M., Sarangapani, S., Cui, J., Dehadrai, A., Singh, G. P., Chan-Park, M. B., Sarojam, R. & Strano, M. (2021). Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition. ACS Sensors, 6(8), 3032-3046. https://dx.doi.org/10.1021/acssensors.1c01022 2379-3694 https://hdl.handle.net/10356/159822 10.1021/acssensors.1c01022 34375072 2-s2.0-85114021250 8 6 3032 3046 en ACS Sensors © 2021 American Chemical Society. All rights reserved. |
| spellingShingle | Engineering::Bioengineering Plant Nanobionics Nanosensors Ang, Mervin Chun-Yi Dhar, Niha Khong, Duc Thinh Lew, Tedrick Thomas Salim Park, Minkyung Sarangapani, Sreelatha Cui, Jianqiao Dehadrai, Aniket Singh, Gajendra Pratap Chan-Park, Mary B. Sarojam, Rajani Strano, Michael Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| title | Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| title_full | Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| title_fullStr | Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| title_full_unstemmed | Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| title_short | Nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| title_sort | nanosensor detection of synthetic auxins in planta using corona phase molecular recognition |
| topic | Engineering::Bioengineering Plant Nanobionics Nanosensors |
| url | https://hdl.handle.net/10356/159822 |
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