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Leaf Production and Expansion: A Generalized Response to Drought Stresses from Cells to Whole Leaf Biomass—A Case Study in the Tomato Compound Leaf
- Source :
- Plants, Vol 8, Iss 10, p 409 (2019), Plants, Volume 8, Issue 10, Plants 10 (8), . (2019), Plants, MDPI, 2019, 8 (10), pp.409. ⟨10.3390/plants8100409⟩, Plants, 2019, 8 (10), pp.409. ⟨10.3390/plants8100409⟩
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- It is clearly established that there is not a unique response to soil water deficit but that there are as many responses as soil water deficit characteristics: Drought intensity, drought duration, and drought position during plant cycle. For a same soil water deficit, responses can also differ on plant genotype within a same species. In spite of this variability, at least for leaf production and expansion processes, robust tendencies can be extracted from the literature when similar watering regimes are compared. Here, we present response curves and multi-scale dynamics analyses established on tomato plants exposed to different soil water deficit treatments. Results reinforce the trends already observed for other species: Reduction in plant leaf biomass under water stress was due to reduction in individual leaf biomass and areas whereas leaf production and specific leaf area were not affected. The dynamics of leaf expansion was modified both at the leaf and cell scales. Cell division and expansion were reduced by drought treatments as well as the endoreduplication process. Combining response curves analyses together with dynamic analyses of tomato compound leaf growth at different scales not only corroborate results on simple leaf responses to drought but also increases our knowledge on the cellular mechanisms behind leaf growth plasticity.
- Subjects :
- 0106 biological sciences
0301 basic medicine
cell division
Specific leaf area
Soil water deficit
[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy
croissance foliaire
Plant Science
drought
Biology
tomato
01 natural sciences
Article
stress du à la sécheresse
endoreduplication
leaf production
03 medical and health sciences
tomate
Ecology, Evolution, Behavior and Systematics
2. Zero hunger
Biomass (ecology)
Leaf expansion
Vegetal Biology
Ecology
fungi
Botany
food and beverages
15. Life on land
croissance cellulaire
endoréduplication
Cell expansion
Horticulture
030104 developmental biology
Cell division
Drought
Endoreduplication
Leaf growth
Leaf production
Plasticity
Tomato
plasticity
QK1-989
leaf growth
stress hydrique
Biologie végétale
cell expansion
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 22237747
- Volume :
- 8
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Plants
- Accession number :
- edsair.doi.dedup.....c3095d7476735ed1979d436cd1f1fdaa