Abscission
Author | : Fredrick T. Addicott |
Publisher | : Univ of California Press |
Total Pages | : 396 |
Release | : 1982-01-01 |
Genre | : Science |
ISBN | : 9780520042889 |
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Author | : Fredrick T. Addicott |
Publisher | : Univ of California Press |
Total Pages | : 396 |
Release | : 1982-01-01 |
Genre | : Science |
ISBN | : 9780520042889 |
Author | : Timothy J. Tranbarger |
Publisher | : Frontiers Media SA |
Total Pages | : 273 |
Release | : 2017-11-22 |
Genre | : |
ISBN | : 2889453286 |
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 proposal 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.
Author | : John Norman Kendall |
Publisher | : |
Total Pages | : 224 |
Release | : 1915 |
Genre | : Abscission (Botany) |
ISBN | : |
Author | : John Norman Kendall |
Publisher | : |
Total Pages | : 106 |
Release | : 1918 |
Genre | : Plant cells and tissues |
ISBN | : |
Author | : Walter C. Dutton |
Publisher | : |
Total Pages | : 286 |
Release | : 1925 |
Genre | : Spraying and dusting in agriculture |
ISBN | : |
Author | : Arthur John Heinicke |
Publisher | : |
Total Pages | : 282 |
Release | : 1917 |
Genre | : Abscission (Botany) |
ISBN | : |
Author | : Jocelyn K. C. Rose |
Publisher | : CRC Press |
Total Pages | : 408 |
Release | : 2003 |
Genre | : Science |
ISBN | : 9780849328114 |
Enzymes, lignin, proteins, cellulose, pectin, kinase.
Author | : Ian Warrington |
Publisher | : John Wiley & Sons |
Total Pages | : 341 |
Release | : 2021-11-09 |
Genre | : Science |
ISBN | : 1119851955 |
Horticultural Reviews presents state-of-the-art reviews on topics in horticultural science and technology covering both basic and applied research. Topics covered include the horticulture of fruits, vegetables, nut crops, and ornamentals. These review articles, written by world authorities, bridge the gap between the specialized researcher and the broader community of horticultural scientists and teachers.
Author | : Maryam Sarwat |
Publisher | : Academic Press |
Total Pages | : 326 |
Release | : 2018-11-29 |
Genre | : Science |
ISBN | : 0128131888 |
Senescence Signalling and Control in Plants discusses the studies showing the importance of hormone action on developmental senescence. It shows the involvement of various signaling components (such as EIN2, LOX2) and transcription factors (such as oresara1 or ORE1) in controlling hormonal activity during senescence. Further, the involvement of various micro RNAs (miR164, miR319) in regulating leaf senescence are discussed. Through this book, the authors throw light on all the reverse and forward genetic approaches to reveal the role of various other phytohormones regulating plant senescence and the molecular mechanisms involved. Chapters on relevant topics are contributed by experts working in the area, making this a comprehensive treatise designed to provide an in-depth analysis on the subject matter. - Throws light on the involvement of hormones (other than the well- known hormones cytokine and ethylene) in plant senescence - Shows the underlying mechanisms on the hormonal actions during senescence - Exhibits the involvement of microRNAs during this important plant developmental process