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 | | Certain crops are prone to premature abscission and dehiscence, partially because of their extreme sensitivity to environmental fluctuations. | | | Molecular approaches to abscission and its regulation have generally focused on cell separation determinants operating in the abscission zone. | | | For example, transgenic leaf abscission incidence in fruiting cotton was reduced by as much as two-thirds relative to control plants (Lashbrook, Rangwala, Perlak and Klee; unpublished). |
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http://arabidopsis.info/abscission/coralie.html
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| | Re: Why do leaves fall off trees when the temperatures drop. |
| | The photoperiod, or length of the daily light period, is considered the environmental trigger for the processes of fall leaf senescence and leaf abscission. | | | Sprays of a chemical, Ethephon, that releases ethylene, are used commercially to promote leaf abscission prior to cotton harvest. | | | Falling Tree Leaves: Leaf Abscission Abscission Zone Photo Problem: Leaves on Trees Don't Drop in Fall Effects of Marcescent Leaves on Winter Forage Quality of Oak, Hornbeam and Beech and the Their Influence on Food Selection by Cervidae |
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http://www.madsci.org/posts/archives/Dec2002/1040089743.Bt.r.html
(316 words)
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| | CITRUS STYLAR ABSCISSION IN TISSUE CULTURES |
| | The most critical nutrient in the test medium appears to be sucrose because abscission is completely prevented in its absence. | | | This report reviews research on the use of flower explants to study the regulation of Citrus abscission by phytohormones and nutrients and to identify effective growth regulators for fruit production. | | | Nutrients, like phytohormones, can also control stylar abscission in pistil explants. |
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http://www.actahort.org/books/179/179_104.htm
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| | ROLE OF CELL WALL HYDROLASES IN TOMATO FLOWER ABSCISSION |
| | A quantitative indicator of the role of each gene in flower abscission was obtained using the ribonuclease protection assay (RPA), which is an extremely sensitive procedure for the detection and quantitation of low abundance mRNAs. | | | The long term goal is to enhance productivity of horticultural crops through more precise control over the shedding of flowers and fruit. | | | INVESTIGATOR: Del Campillo, E. Abscission is a process of cell wall degradation that results in the shedding of plant organs. |
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http://www.nal.usda.gov/pgdic/pggrantinfo/1994/9161044.html
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| | abscission |
| | In deciduous plants the leaves are shed before the winter or dry season, whereas evergreen plants drop their leaves continually throughout the year. | | | Fruitdrop, the abscission of fruit while still immature, is a naturally occurring process. | | | Within this, a thin layer of cells, the abscission layer, becomes weakened and breaks down through the conversion of pectic acid to pectin. |
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http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0020435.html
(218 words)
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| | Leaf Abscission |
| | Experiment: Coleus blumei plants were cultivated to maturity in the greenhouse and pinched to induce many branches. | | | Observations: You have doubtless observed autumn leaves abscising, or perhaps you have had to rake the many piles after the process was over. | | | In lecture you have observed that fruit ripening, leaf senescence, and development of the abscission layer are interrelated and parallel in design. |
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http://koning.ecsu.ctstateu.edu/Plant_Physiology/abscission.html
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| | abscission - OneLook Dictionary Search |
| | Phrases that include abscission: abscission zone, abscission layer, abscission cellulase, corneal abscission, leaf abscission, more... | | | abscission : Flora of New South Wales [home, info] | | | Tip: Click on the first link on a line below to go directly to a page where "abscission" is defined. |
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http://onelook.com/?w=abscission&ls=a
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| | web~abscission |
| | exclusively on research in the abscission and dehiscence field. | | | studying the processes of abscission and dehiscence in plants. | | | differentiation of abscission and dehiscence zones maybe regulated and |
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http://arabidopsis.info/abscission
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| | ARS Publication request: Cis-Acting Regulatory Elements in the Bean Abscission Cellulase Gene Promoter |
| | Technical Abstract: Abscission involves controlled degradation of cell wall material that leads to cell separation in a distinct layer of plant cells that comprise the area of organ detachment or abscission zone (AZ). | | | Accompanying organ separation is an increase in the activity of several cell wall hydrolases including polygalacturonase and endo beta-1,4-glucanase (cellulase). | | | Both ethylene and auxin are known to be important temporal regulators of abscission and hydrolase gene expression, however, information regarding the molecular genetic regulation of these cell wall-degrading enzymes is limited. |
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http://ars.usda.gov/research/publications/publications.htm?SEQ_NO_115=100128
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| | Abscission definition - Medical Dictionary definitions of popular medical terms |
| | Abscission: To remove tissue by cutting it away, as in surgery. | | | Abscission definition - Medical Dictionary definitions of popular medical terms | | | Please consult your healthcare provider before beginning any course of supplementation or treatment. |
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http://www.medterms.com/script/main/art.asp?articlekey=10914
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| | abscission - Wiktionary |
| | Not to be cured without the abscission of a member. |
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http://en.wiktionary.org/wiki/Abscission
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