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001 https://directory.doabooks.org/handle/20.500.12854/56347
005 20220220100813.0
020 _a978-2-88945-328-3
020 _a9782889453283
024 7 _a10.3389/978-2-88945-328-3
_cdoi
041 0 _aEnglish
042 _adc
100 1 _aMark L. Tucker
_4auth
700 1 _aTimothy J. Tranbarger
_4auth
700 1 _aShimon Meir
_4auth
700 1 _aJeremy A. Roberts
_4auth
245 1 0 _aPlant Organ Abscission: From Models to Crops
260 _bFrontiers Media SA
_c2017
300 _a1 electronic resource (271 p.)
506 0 _aOpen Access
_2star
_fUnrestricted online access
520 _aPlant 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.
540 _aCreative Commons
_fhttps://creativecommons.org/licenses/by/4.0/
_2cc
_4https://creativecommons.org/licenses/by/4.0/
546 _aEnglish
653 _asignaling
653 _atranscription
653 _aauxin
653 _aArabidopsis
653 _atomato
653 _aOrgan abscission
653 _acell wall
653 _afruit abscission
653 _aethylene
653 _aabscission zone
856 4 0 _awww.oapen.org
_uhttps://www.frontiersin.org/research-topics/2917/plant-organ-abscission-from-models-to-crops
_70
_zDOAB: download the publication
856 4 0 _awww.oapen.org
_uhttps://directory.doabooks.org/handle/20.500.12854/56347
_70
_zDOAB: description of the publication
999 _c80398
_d80398