scholarly journals Ripening related processes in strawberry, a nonclimacteric fruit: a short overview

2009 ◽  
Vol 15 (1-2) ◽  
Author(s):  
V. Tisza ◽  
L. Kovács ◽  
L. Heszky ◽  
E. Kiss
Keyword(s):  
Fruit Development ◽  
Ethylene Biosynthesis ◽  
Strawberry Fruit ◽  
Human Diet ◽  
Short Overview ◽  
Physiological Processes ◽  
Fruit Development And Ripening ◽  
Nonclimacteric Fruit ◽  
Identification And Characterization

Fruits are essential part of the human diet: they provide vitamins, minerals, antioxidants to the mankind. Physiologically they can be divided into two groups-climacteric and nonclimacteric - depending if they display any respiratory peak and dramatic increase in ethylene biosynthesis or do not. Ethylene is a gaseous hormone playing a very important role in several physiological processes in plants. While climacteric fruits, like apples, bananas, tomatoes, peaches, apricots show increased ethylene biosynthesis and dramatic respiratory peak during their ripening, nonclimacteric fruits, like strawberries, grapes, citrus do not. The most widely used fruits for studying nonclimacteric ripening are strawberries: several papers are focusing on the identification and characterization of ripening related genes from this plant. Therefore here we attempt to summarize the most important advances in strawberry fruit development, and ripening.

scholarly journals Chromatin accessibility is dynamically regulated across C. elegans development and ageing

2018 ◽  
Author(s):  
Jürgen Jänes ◽  
Yan Dong ◽  
Michael Schoof ◽  
Jacques Serizay ◽  
Alex Appert ◽  
...  
Keyword(s):  
Regulatory Mechanism ◽  
Regulatory Elements ◽  
Chromatin Accessibility ◽  
Protein Coding ◽  
C Elegans ◽  
Transcription Profiles ◽  
Physiological Processes ◽  
Global Identification ◽  
Identification And Characterization

AbstractAn essential step for understanding the transcriptional circuits that control development and physiology is the global identification and characterization of regulatory elements. Here we present the first map of regulatory elements across the development and ageing of an animal, identifying 42,245 elements accessible in at least one C. elegans stage. Based on nuclear transcription profiles, we define 15,714 protein-coding promoters and 19,231 putative enhancers, and find that both types of element can drive orientation-independent transcription. Additionally, hundreds of promoters produce transcripts antisense to protein coding genes, suggesting involvement in a widespread regulatory mechanism. We find that the accessibility of most elements is regulated during development and/or ageing and that patterns of accessibility change are linked to specific developmental or physiological processes. The map and characterization of regulatory elements across C. elegans life provides a platform for understanding how transcription controls development and ageing.

scholarly journals 758 PB 158 COMPARISON OF SEASONAL PATTERNS OF POLYAMINES DURING FRUIT AND SEED GROWTH OF PEACHES

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 541f-541
Author(s):  
Mosbah M. Kushad
Keyword(s):  
Seasonal Variation ◽  
Fruit Development ◽  
Prunus Persica ◽  
Fruit Set ◽  
Ethylene Biosynthesis ◽  
Seasonal Patterns ◽  
Flesh Color ◽  
Fruit Development And Ripening ◽  
Seed Growth ◽  
The Relationship

Seasonal variation in polyamines were evaluate during growth of fruit and seed of peach (Prunus persica L. cvs. Loring and Biscoe) starting at fruit set. In both cultivars, putrescine and spermidine increase significantly while spermine increase only slightly during the early stages of development then declined at the later stages. During pit hardening, polyamines in the flesh remained unchanged but their level in the seed continued to decrease. In both cultivars, polyamine levels corresponded to changes in fruit and seed sizes. when polyamines were vacuum infiltrated into commercially mature Biscoe fruits, flesh firmness, ethylene biosynthesis, and flesh color were significantly different from untreated tissue. The relationship between polyamines, seed development, and fruit development and ripening will be examined.

Characterization of 10 MADS-box genes from Pyrus pyrifolia and their differential expression during fruit development and ripening

Gene ◽  
2013 ◽  
Vol 528 (2) ◽  
pp. 183-194 ◽  
Author(s):  
Benjamin Ewa Ubi ◽  
Takanori Saito ◽  
Songling Bai ◽  
Chikako Nishitani ◽  
Yusuke Ban ◽  
...  
Keyword(s):  
Differential Expression ◽  
Fruit Development ◽  
Pyrus Pyrifolia ◽  
Mads Box ◽  
Mads Box Genes ◽  
Fruit Development And Ripening

scholarly journals Chromatin accessibility dynamics across C. elegans development and ageing

eLife ◽  
2018 ◽  
Vol 7 ◽  
Author(s):  
Jürgen Jänes ◽  
Yan Dong ◽  
Michael Schoof ◽  
Jacques Serizay ◽  
Alex Appert ◽  
...  
Keyword(s):  
Regulatory Mechanism ◽  
Regulatory Elements ◽  
Chromatin Accessibility ◽  
Protein Coding ◽  
C Elegans ◽  
Transcription Profiles ◽  
Physiological Processes ◽  
Global Identification ◽  
Identification And Characterization

An essential step for understanding the transcriptional circuits that control development and physiology is the global identification and characterization of regulatory elements. Here, we present the first map of regulatory elements across the development and ageing of an animal, identifying 42,245 elements accessible in at least one Caenorhabditis elegans stage. Based on nuclear transcription profiles, we define 15,714 protein-coding promoters and 19,231 putative enhancers, and find that both types of element can drive orientation-independent transcription. Additionally, more than 1000 promoters produce transcripts antisense to protein coding genes, suggesting involvement in a widespread regulatory mechanism. We find that the accessibility of most elements changes during development and/or ageing and that patterns of accessibility change are linked to specific developmental or physiological processes. The map and characterization of regulatory elements across C. elegans life provides a platform for understanding how transcription controls development and ageing.

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