Document Detail

Effect of environmental complexity on salt-adaptation in Sorghum bicolor.
MedLine Citation:
PMID:  9648666     Owner:  NLM     Status:  MEDLINE    
Individual plants of Sorghum bicolor mature different adaptive reactions to salinity. The positive correlation between the frequency of specific reactions and the tolerance level of plants with that specific reaction results from adaptive determinism (AD). The effect of complexity in environmental conditions on AD in plants adapting for the first time to salinity, A0, and in their offspring A1 was compared. Environmental complexity increases when uncontrolled factors besides salinity affect plants. The diversity of reactions of plants correlates positively with environmental complexity. AD correlates negatively to environmental complexity in A1. In contrast, environmental complexity has no effect on AD in A0. A1 are more tolerant to salinity than A0: A1 inherited adaptive information. The likelihood that A1 plants are exposed to the same uncontrolled factor as their parent is low, and so the decrease of AD in A1 due to environmental complexity suggests that: (1) the information inherited is specific to saline conditions; (2) AD results mainly from inherited pre-existing information; plants react as informatively closed systems: saline conditions trigger the expression of an adaptive, pre-existing program. For A0, conclusions are: (1) the adaptive reaction is not an expression of pre-existing information; (2) AD emerges during the adaptation process: the environment imprints adaptively the plant's development. In this case, plants react as open systems in terms of information.
H Seligmann
Related Documents :
20060616 - Abscisic acid signals reorientation of polyamine metabolism to orchestrate stress respo...
21185036 - Are sea otters being exposed to subsurface intertidal oil residues from the exxon valde...
11299346 - Salt-induced expression of the vacuolar h+-atpase in the common ice plant is developmen...
24316176 - Simulated digestion of dried leaves of artemisia annua consumed as a treatment (pact) f...
20840506 - Oshma3, a p1b-type of atpase affects root-to-shoot cadmium translocation in rice by med...
15237296 - Plants as indicators of urban air pollution (ozone and trace elements) in pisa, italy.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Bio Systems     Volume:  45     ISSN:  0303-2647     ISO Abbreviation:  BioSystems     Publication Date:  1998 Mar 
Date Detail:
Created Date:  1998-09-15     Completed Date:  1998-09-15     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  0430773     Medline TA:  Biosystems     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  213-20     Citation Subset:  IM    
Department of Evolution, Systematics and Ecology, Hebrew University of Jerusalem, Israel.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Adaptation, Physiological*
Cereals / physiology*
Sodium Chloride*
Reg. No./Substance:
7647-14-5/Sodium Chloride

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The synchronization of recruitment-based activities in ants.
Next Document:  Effects of feedback inhibition on transit time in a linear pathway of Michaelis-Menten-type reaction...