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Deciphering structural and temporal interplays during the architectural development of mango trees.
Anaëlle Dambreville1, Pierre-Éric Lauri, Catherine Trottier
1CIRAD, UPR HortSys, 97455 Saint-Pierre Cedex, Réunion Island, France.
Journal of Experimental Botany
|April 16, 2013
Summary
Plant architecture is shaped by both structure and timing. This study reveals how mango tree development, including flowering and vegetative growth, interact to create diverse plant structures.
Area of Science:
- Plant Biology
- Ecology
- Agricultural Science
Background:
- Plant architecture is typically defined by organ arrangement and properties.
- Limited research explores the impact of phenological (temporal) factors on plant architecture.
- This study investigates the interplay of structural and temporal components in shaping plant architecture.
Purpose of the Study:
- To test the hypothesis that plant architecture arises from endogenous structural and temporal factors and their interactions.
- To model vegetative and reproductive development in mango trees, considering phenological asynchronisms.
- To identify cultivar-specific patterns in plant architectural development.
Main Methods:
- Observational study of 20 mango trees over two growing cycles.
- Description of vegetative and reproductive development at the growth unit scale.
- Development of integrative models using generalized linear models to analyze timing and intensity of development.
Main Results:
- Significant interplays between structural and temporal components of plant architecture were identified at multiple scales.
- Earliness of bud burst correlated positively with early vegetative development and flowering within a cycle.
- Flowering delayed subsequent vegetative development between cycles, explaining phenological asynchronisms.
Conclusions:
- Plant architecture is a result of complex interactions between structural and temporal developmental components.
- Phenological asynchronisms in mango trees are driven by these interplays.
- Causation networks involving these components likely generate diverse tree architectures.
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