Plant Organ Abscission: From Models to Crops
Plant organ abscission is a developmental process regulated by the environment, stress, pathogens and the physiological status of the plant. In particular, seed and fruit abscission play an important role in seed dispersion and plant reproductive success and are common domestication traits with impo...
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| 格式: | Online |
| 語言: | 英语 |
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Frontiers Media SA
2021
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| 在線閱讀: | 25630 |
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| author | Mark L. Tucker Timothy J. Tranbarger Shimon Meir Jeremy A. Roberts |
| author_browse | Jeremy A. Roberts Mark L. Tucker Shimon Meir Timothy J. Tranbarger |
| author_facet | Mark L. Tucker Timothy J. Tranbarger Shimon Meir Jeremy A. Roberts |
| author_sort | Mark L. Tucker |
| collection | Directory of Open Access Books |
| description | Plant organ abscission is a developmental process regulated by the environment, stress, pathogens and the physiological status of the plant. In particular, seed and fruit abscission play an important role in seed dispersion and plant reproductive success and are common domestication traits with important agronomic consequences for many crop species. Indeed, in natural populations, shedding of the seed or fruit at the correct time is essential for reproductive success, while for crop species the premature or lack of abscission may be either beneficial or detrimental to crop productivity. The use of model plants, in particular Arabidopsis and tomato, have led to major advances in our understanding of the molecular and cellular mechanisms underlying organ abscission, and now many workers pursue the translation of these advances to crop species. Organ abscission involves specialized cell layers called the abscission zone (AZ), where abscission signals are perceived and cell separation takes place for the organ to be shed. A general model for plant organ abscission includes (1) the differentiation of the AZ, (2) the acquisition of AZ cells to become competent to respond to various abscission signals, (3) response to signals and the activation of the molecular and cellular processes that lead to cell separation in the AZ and (4) the post-abscission events related to protection of exposed cells after the organ has been shed. While this simple four-phase framework is helpful to describe the abscission process, the exact mechanisms of each stage, the differences between organ types and amongst diverse species, and in response to different abscission inducing signals are far from elucidated. For an organ to be shed, AZ cells must transduce a multitude of both endogenous and exogenous signals that lead to transcriptional and cellular and ultimately cell wall modifications necessary for adjacent cells to separate. How these key processes have been adapted during evolution to allow for organ abscission to take place in different locations and under different conditions is unknown. The aim of the current collection of articles is to present and be able to compare recent results on our understanding of organ abscission from model and crop species, and to provide a basis to understand both the evolution of abscission in plants and the translation of advances with model plants for applications in crop species. |
| format | Online |
| id | doab-20.500.12854ir-56347 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Frontiers Media SA |
| publisherStr | Frontiers Media SA |
| record_format | ojs |
| spelling | doab-20.500.12854ir-563472024-04-05T17:31:16Z Plant Organ Abscission: From Models to Crops Mark L. Tucker Timothy J. Tranbarger Shimon Meir Jeremy A. Roberts QK1-989 Q1-390 signaling transcription auxin Arabidopsis tomato Organ abscission cell wall fruit abscission ethylene abscission zone thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PST Botany and plant sciences Plant organ abscission is a developmental process regulated by the environment, stress, pathogens and the physiological status of the plant. In particular, seed and fruit abscission play an important role in seed dispersion and plant reproductive success and are common domestication traits with important agronomic consequences for many crop species. Indeed, in natural populations, shedding of the seed or fruit at the correct time is essential for reproductive success, while for crop species the premature or lack of abscission may be either beneficial or detrimental to crop productivity. The use of model plants, in particular Arabidopsis and tomato, have led to major advances in our understanding of the molecular and cellular mechanisms underlying organ abscission, and now many workers pursue the translation of these advances to crop species. Organ abscission involves specialized cell layers called the abscission zone (AZ), where abscission signals are perceived and cell separation takes place for the organ to be shed. A general model for plant organ abscission includes (1) the differentiation of the AZ, (2) the acquisition of AZ cells to become competent to respond to various abscission signals, (3) response to signals and the activation of the molecular and cellular processes that lead to cell separation in the AZ and (4) the post-abscission events related to protection of exposed cells after the organ has been shed. While this simple four-phase framework is helpful to describe the abscission process, the exact mechanisms of each stage, the differences between organ types and amongst diverse species, and in response to different abscission inducing signals are far from elucidated. For an organ to be shed, AZ cells must transduce a multitude of both endogenous and exogenous signals that lead to transcriptional and cellular and ultimately cell wall modifications necessary for adjacent cells to separate. How these key processes have been adapted during evolution to allow for organ abscission to take place in different locations and under different conditions is unknown. The aim of the current collection of articles is to present and be able to compare recent results on our understanding of organ abscission from model and crop species, and to provide a basis to understand both the evolution of abscission in plants and the translation of advances with model plants for applications in crop species. 2021-02-11T23:04:11Z 2021-02-11T23:04:11Z 2018-02-27 16:16:45 2017 book 25630 16648714 9782889453283 https://directory.doabooks.org/handle/20.500.12854/56347 eng Frontiers Research Topics image/jpeg Attribution 4.0 International https://www.frontiersin.org/books/Plant_Organ_Abscission_From_Models_to_Crops_1/1385 https://www.frontiersin.org/research-topics/2917/plant-organ-abscission-from-models-to-crops Frontiers Media SA 10.3389/978-2-88945-328-3 10.3389/978-2-88945-328-3 bf5ce210-e72e-4860-ba9b-c305640ff3ae 9782889453283 271 open access |
| spellingShingle | QK1-989 Q1-390 signaling transcription auxin Arabidopsis tomato Organ abscission cell wall fruit abscission ethylene abscission zone thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PST Botany and plant sciences Mark L. Tucker Timothy J. Tranbarger Shimon Meir Jeremy A. Roberts Plant Organ Abscission: From Models to Crops |
| title | Plant Organ Abscission: From Models to Crops |
| title_full | Plant Organ Abscission: From Models to Crops |
| title_fullStr | Plant Organ Abscission: From Models to Crops |
| title_full_unstemmed | Plant Organ Abscission: From Models to Crops |
| title_short | Plant Organ Abscission: From Models to Crops |
| title_sort | plant organ abscission from models to crops |
| topic | QK1-989 Q1-390 signaling transcription auxin Arabidopsis tomato Organ abscission cell wall fruit abscission ethylene abscission zone thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PST Botany and plant sciences |
| topic_facet | QK1-989 Q1-390 signaling transcription auxin Arabidopsis tomato Organ abscission cell wall fruit abscission ethylene abscission zone thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PST Botany and plant sciences |
| url | 25630 |
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