scholarly journals No escape: The influence of substrate sodium on plant growth and tissue sodium responses

2021 ◽  
Author(s):  
Luis Y. Santiago‐Rosario ◽  
Kyle E. Harms ◽  
Bret D. Elderd ◽  
Pamela B. Hart ◽  
Maheshi Dassanayake
Keyword(s):  
Plant Growth ◽  
Influence Of Substrate ◽  
Tissue Sodium

scholarly journals No Escape: The Influence of Substrate Sodium on Plant Growth and Tissue Sodium Responses

2021 ◽  
Author(s):  
Luis Santiago-Rosario ◽  
Kyle Harms ◽  
Bret Elderd ◽  
Pamela Hart ◽  
Maheshi Dassanayake
Keyword(s):  
Plant Growth ◽  
Evolutionary Dynamics ◽  
Phylogenetic Signal ◽  
A Priori ◽  
General Pattern ◽  
Trophic Levels ◽  
Growth Responses ◽  
Sodium Accumulation ◽  
Influence Of Substrate ◽  
Tissue Sodium

As an essential micronutrient for many organisms, sodium plays an important role in ecological and evolutionary dynamics. Although plants mediate trophic fluxes of sodium, from substrates to higher trophic levels, we know relatively little about plants’ comparative growth and sodium accumulation responses to variation in substrate sodium. We carried out a systematic review to examine how plants respond to variation in substrate sodium concentrations. We compared growth and tissue-sodium responses among 107 populations (67 species in 20 plant families), broadly expanding beyond the agricultural and model taxa for which several generalizations previously have been made. We hypothesized a priori response models for each population’s growth and sodium accumulation responses as a function of increasing substrate NaCl. We used BIC to choose the best model. Additionally, using a phylogenetic signal analysis, we tested for phylogenetic patterning of growth and sodium accumulation responses across plant taxa. The influence of substrate sodium on growth differed across taxa, with most populations experiencing detrimental effects at high concentrations. Irrespective of growth response, tissue concentrations of sodium for most taxa increased as sodium concentrations in the substrate increased. We found no strong associations between growth and types of sodium accumulation responses across taxa. Our phylogenetic signal analyses found that evolutionary history helps predict the distribution of total plant growth responses across the phylogeny, but not sodium accumulation responses. Our study suggests that saltier plants in saltier soils may prove to be a broadly general pattern for sodium across plant taxa. Regardless of growth responses, sodium accumulation mostly followed an increasing trend and did not have any evident association with growth responses as substrate sodium levels increased. Finally, plant adaptations to substrate sodium vary with a degree of phylogenetic conservatism.

Mechanisms of ethylene biosynthesis and response in plants

2015 ◽  
Vol 58 ◽  
pp. 61-70 ◽  
Author(s):  
Paul B. Larsen
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Ethylene Biosynthesis ◽  
Unsaturated Hydrocarbon ◽  
Flower Senescence ◽  
Detailed Knowledge ◽  
Plant Growth And Development ◽  
Step Process ◽  
Ethylene Response ◽  
Ethylene Signalling

Ethylene is the simplest unsaturated hydrocarbon, yet it has profound effects on plant growth and development, including many agriculturally important phenomena. Analysis of the mechanisms underlying ethylene biosynthesis and signalling have resulted in the elucidation of multistep mechanisms which at first glance appear simple, but in fact represent several levels of control to tightly regulate the level of production and response. Ethylene biosynthesis represents a two-step process that is regulated at both the transcriptional and post-translational levels, thus enabling plants to control the amount of ethylene produced with regard to promotion of responses such as climacteric flower senescence and fruit ripening. Ethylene production subsequently results in activation of the ethylene response, as ethylene accumulation will trigger the ethylene signalling pathway to activate ethylene-dependent transcription for promotion of the response and for resetting the pathway. A more detailed knowledge of the mechanisms underlying biosynthesis and the ethylene response will ultimately enable new approaches to be developed for control of the initiation and progression of ethylene-dependent developmental processes, many of which are of horticultural significance.

Episodic whole plant growth patterns in Ligustrum

1993 ◽  
Vol 89 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Jeff S. Kuehny ◽  
Mary C. Halbrooks
Keyword(s):  
Plant Growth ◽  
Growth Patterns ◽  
Whole Plant

Adenine salvage activity during callus induction and plant growth

1994 ◽  
Vol 90 (4) ◽  
pp. 739-747 ◽  
Author(s):  
Diana Lee ◽  
Barbara A. Moffatt
Keyword(s):  
Plant Growth ◽  
Callus Induction

Plant growth

AccessScience ◽  
2015 ◽  
Keyword(s):  
Plant Growth

Plant growth: Wide rice

Nature China ◽  
2007 ◽  
Author(s):  
Tim Reid
Keyword(s):  
Plant Growth

Key gene links auxin and cytoskeleton to control plant growth

2014 ◽  
Author(s):  
Sedeer El-Shawk
Keyword(s):  
Plant Growth ◽  
Control Plant

Plant growth hope for climate fades

2020 ◽  
Vol 248 (3313-3314) ◽  
pp. 17
Keyword(s):  
Plant Growth
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