Eudicots from severely phosphorus-impoverished environments preferentially allocate phosphorus to their mesophyll

c. Guilherme Pereira, P.L. Clode, R.S. Oliveira, H. Lambers

Research output: Contribution to journalArticle

9 Citations (Scopus)
102 Downloads (Pure)

Abstract

Plants allocate nutrients to specific leaf cell types, with commelinoid monocots preferentially allocating phosphorus (P) to the mesophyll and calcium (Ca) to the epidermis, whereas the opposite is thought to occur in eudicots. However, Proteaceae from severely P-impoverished habitats present the same P-allocation pattern as monocots. This raises the question of whether preferential P allocation to mesophyll cells is a phylogenetically conserved trait, exclusive to commelinoid monocots and a few Proteaceae, or a trait that has evolved multiple times to allow plants to cope with very low soil P availability. We analysed the P-allocation patterns of 16 species from 10 genera, eight families and six orders within three major clades of eudicots across different P-impoverished environments in Australia and Brazil, using elemental X-ray mapping to quantitatively determine leaf cell-specific nutrient concentrations. Many of the analysed species showed P-allocation patterns that differed substantially from that expected for eudicots. Instead, P-allocation patterns were strongly associated with the P availability in the natural habitat of the species, suggesting a convergent evolution of P-allocation patterns at the cellular level, with P limitation as selective pressure and without a consistent P-allocation pattern within eudicots. Here, we show that most eudicots from severely P-impoverished environments preferentially allocated P to their mesophyll. We surmise that this preferential P allocation to photosynthetically active cells might contribute to the very high photosynthetic P-use efficiency of species adapted to P-impoverished habitats.

Original languageEnglish
Pages (from-to)959-973
Number of pages15
JournalNew Phytologist
Volume218
Issue number3
DOIs
Publication statusPublished - 1 May 2018

Fingerprint

Proteaceae
mesophyll
Phosphorus
Ecosystem
Liliopsida
phosphorus
Mesophyll Cells
Food
habitats
cells
Epidermis
Brazil
convergent evolution
Soil
epidermis (plant)
X-Rays
Calcium
leaves
X-radiation
nutrient content

Cite this

@article{a692332eb2bb4247a7fd87a9ca3b241d,
title = "Eudicots from severely phosphorus-impoverished environments preferentially allocate phosphorus to their mesophyll",
abstract = "Plants allocate nutrients to specific leaf cell types, with commelinoid monocots preferentially allocating phosphorus (P) to the mesophyll and calcium (Ca) to the epidermis, whereas the opposite is thought to occur in eudicots. However, Proteaceae from severely P-impoverished habitats present the same P-allocation pattern as monocots. This raises the question of whether preferential P allocation to mesophyll cells is a phylogenetically conserved trait, exclusive to commelinoid monocots and a few Proteaceae, or a trait that has evolved multiple times to allow plants to cope with very low soil P availability. We analysed the P-allocation patterns of 16 species from 10 genera, eight families and six orders within three major clades of eudicots across different P-impoverished environments in Australia and Brazil, using elemental X-ray mapping to quantitatively determine leaf cell-specific nutrient concentrations. Many of the analysed species showed P-allocation patterns that differed substantially from that expected for eudicots. Instead, P-allocation patterns were strongly associated with the P availability in the natural habitat of the species, suggesting a convergent evolution of P-allocation patterns at the cellular level, with P limitation as selective pressure and without a consistent P-allocation pattern within eudicots. Here, we show that most eudicots from severely P-impoverished environments preferentially allocated P to their mesophyll. We surmise that this preferential P allocation to photosynthetically active cells might contribute to the very high photosynthetic P-use efficiency of species adapted to P-impoverished habitats.",
keywords = "cell-specific, elemental analysis, nutrient allocation, phosphorus-use efficiency, plant nutrition, scanning electron microscopy",
author = "{Guilherme Pereira}, c. and P.L. Clode and R.S. Oliveira and H. Lambers",
year = "2018",
month = "5",
day = "1",
doi = "10.1111/nph.15043",
language = "English",
volume = "218",
pages = "959--973",
journal = "The New Phytologist",
issn = "0028-646X",
publisher = "John Wiley & Sons",
number = "3",

}

Eudicots from severely phosphorus-impoverished environments preferentially allocate phosphorus to their mesophyll. / Guilherme Pereira, c.; Clode, P.L.; Oliveira, R.S.; Lambers, H.

In: New Phytologist, Vol. 218, No. 3, 01.05.2018, p. 959-973.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Eudicots from severely phosphorus-impoverished environments preferentially allocate phosphorus to their mesophyll

AU - Guilherme Pereira, c.

AU - Clode, P.L.

AU - Oliveira, R.S.

AU - Lambers, H.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Plants allocate nutrients to specific leaf cell types, with commelinoid monocots preferentially allocating phosphorus (P) to the mesophyll and calcium (Ca) to the epidermis, whereas the opposite is thought to occur in eudicots. However, Proteaceae from severely P-impoverished habitats present the same P-allocation pattern as monocots. This raises the question of whether preferential P allocation to mesophyll cells is a phylogenetically conserved trait, exclusive to commelinoid monocots and a few Proteaceae, or a trait that has evolved multiple times to allow plants to cope with very low soil P availability. We analysed the P-allocation patterns of 16 species from 10 genera, eight families and six orders within three major clades of eudicots across different P-impoverished environments in Australia and Brazil, using elemental X-ray mapping to quantitatively determine leaf cell-specific nutrient concentrations. Many of the analysed species showed P-allocation patterns that differed substantially from that expected for eudicots. Instead, P-allocation patterns were strongly associated with the P availability in the natural habitat of the species, suggesting a convergent evolution of P-allocation patterns at the cellular level, with P limitation as selective pressure and without a consistent P-allocation pattern within eudicots. Here, we show that most eudicots from severely P-impoverished environments preferentially allocated P to their mesophyll. We surmise that this preferential P allocation to photosynthetically active cells might contribute to the very high photosynthetic P-use efficiency of species adapted to P-impoverished habitats.

AB - Plants allocate nutrients to specific leaf cell types, with commelinoid monocots preferentially allocating phosphorus (P) to the mesophyll and calcium (Ca) to the epidermis, whereas the opposite is thought to occur in eudicots. However, Proteaceae from severely P-impoverished habitats present the same P-allocation pattern as monocots. This raises the question of whether preferential P allocation to mesophyll cells is a phylogenetically conserved trait, exclusive to commelinoid monocots and a few Proteaceae, or a trait that has evolved multiple times to allow plants to cope with very low soil P availability. We analysed the P-allocation patterns of 16 species from 10 genera, eight families and six orders within three major clades of eudicots across different P-impoverished environments in Australia and Brazil, using elemental X-ray mapping to quantitatively determine leaf cell-specific nutrient concentrations. Many of the analysed species showed P-allocation patterns that differed substantially from that expected for eudicots. Instead, P-allocation patterns were strongly associated with the P availability in the natural habitat of the species, suggesting a convergent evolution of P-allocation patterns at the cellular level, with P limitation as selective pressure and without a consistent P-allocation pattern within eudicots. Here, we show that most eudicots from severely P-impoverished environments preferentially allocated P to their mesophyll. We surmise that this preferential P allocation to photosynthetically active cells might contribute to the very high photosynthetic P-use efficiency of species adapted to P-impoverished habitats.

KW - cell-specific

KW - elemental analysis

KW - nutrient allocation

KW - phosphorus-use efficiency

KW - plant nutrition

KW - scanning electron microscopy

UR - http://www.scopus.com/inward/record.url?scp=85045531512&partnerID=8YFLogxK

U2 - 10.1111/nph.15043

DO - 10.1111/nph.15043

M3 - Article

VL - 218

SP - 959

EP - 973

JO - The New Phytologist

JF - The New Phytologist

SN - 0028-646X

IS - 3

ER -