Evolution and palaeophysiology of the vascular system and other means of long-distance transport

John A. Raven (Lead / Corresponding author)

    Research output: Contribution to journalReview article

    6 Citations (Scopus)

    Abstract

    Photolithotrophic growth on land using atmospheric CO2 inevitably involves H2O vapour loss. Embryophytes greater than or equal to 100 mm tall are homoiohydric and endohydric with mass flow of aqueous solution through the xylem in tracheophytes. Structural details in Rhynie sporophytes enable modelling of the hydraulics of H2O supply to the transpiring surface, and the potential for gas exchange with the Devonian atmosphere. Xylem carrying H2O under tension involves programmed cell death, rigid cell walls and embolism repair; fossils provide little evidence on these functions other than the presence of lignin. The phenylalanine ammonia lyase essential for lignin synthesis came from horizontal gene transfer. Rhynie plants lack endodermes, limiting regulation of the supply of soil nutrients to shoots. The transfer of organic solutes from photosynthetic sites to growing and storage tissues involves mass flow through phloem in extant tracheophytes. Rhynie plants show little evidence of phloem; possible alternatives for transport of organic solutes are discussed. Extant examples of the arbuscular mycorrhizas found in Rhynie plants exchange soil-derived nutrients (especially P) for plant-derived organic matter, involving bidirectional mass flow along the hyphae. The aquatic cyanobacteria and the charalean Palaeonitella at Rhynie also have long-distance (relative to the size of the organism) transport.

    Original languageEnglish
    Article number20160497
    Pages (from-to)1-14
    Number of pages14
    JournalPhilosophical Transactions of the Royal Society B: Biological Sciences
    Volume373
    Issue number1739
    Early online date18 Dec 2017
    DOIs
    Publication statusPublished - 5 Feb 2018

    Fingerprint

    plant vascular system
    mass flow
    Lignin
    Nutrients
    Blood Vessels
    Phenylalanine Ammonia-Lyase
    Gene transfer
    Soils
    Phloem
    Xylem
    phloem
    xylem
    solutes
    lignin
    Cell death
    Biological materials
    vesicular arbuscular mycorrhizae
    Repair
    sporophytes
    Soil

    Keywords

    • Apoplasm
    • Arbuscular mycorrhizas
    • Endodermis
    • Phloem
    • Symplasm
    • Xylem
    • Biological Transport
    • Plant Vascular Bundle/physiology
    • Scotland
    • Paleontology
    • Embryophyta/physiology
    • Fossils

    Cite this

    @article{f78fdc296af7457fb7442e87d99234d3,
    title = "Evolution and palaeophysiology of the vascular system and other means of long-distance transport",
    abstract = "Photolithotrophic growth on land using atmospheric CO2 inevitably involves H2O vapour loss. Embryophytes greater than or equal to 100 mm tall are homoiohydric and endohydric with mass flow of aqueous solution through the xylem in tracheophytes. Structural details in Rhynie sporophytes enable modelling of the hydraulics of H2O supply to the transpiring surface, and the potential for gas exchange with the Devonian atmosphere. Xylem carrying H2O under tension involves programmed cell death, rigid cell walls and embolism repair; fossils provide little evidence on these functions other than the presence of lignin. The phenylalanine ammonia lyase essential for lignin synthesis came from horizontal gene transfer. Rhynie plants lack endodermes, limiting regulation of the supply of soil nutrients to shoots. The transfer of organic solutes from photosynthetic sites to growing and storage tissues involves mass flow through phloem in extant tracheophytes. Rhynie plants show little evidence of phloem; possible alternatives for transport of organic solutes are discussed. Extant examples of the arbuscular mycorrhizas found in Rhynie plants exchange soil-derived nutrients (especially P) for plant-derived organic matter, involving bidirectional mass flow along the hyphae. The aquatic cyanobacteria and the charalean Palaeonitella at Rhynie also have long-distance (relative to the size of the organism) transport.",
    keywords = "Apoplasm, Arbuscular mycorrhizas, Endodermis, Phloem, Symplasm, Xylem, Biological Transport, Plant Vascular Bundle/physiology, Scotland, Paleontology, Embryophyta/physiology, Fossils",
    author = "Raven, {John A.}",
    note = "No funding received for this study.",
    year = "2018",
    month = "2",
    day = "5",
    doi = "10.1098/rstb.2016.0497",
    language = "English",
    volume = "373",
    pages = "1--14",
    journal = "Philosophical Transactions of the Royal Society B - Biological Sciences",
    issn = "0962-8436",
    publisher = "The Royal Society",
    number = "1739",

    }

    Evolution and palaeophysiology of the vascular system and other means of long-distance transport. / Raven, John A. (Lead / Corresponding author).

    In: Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 373, No. 1739, 20160497, 05.02.2018, p. 1-14.

    Research output: Contribution to journalReview article

    TY - JOUR

    T1 - Evolution and palaeophysiology of the vascular system and other means of long-distance transport

    AU - Raven, John A.

    N1 - No funding received for this study.

    PY - 2018/2/5

    Y1 - 2018/2/5

    N2 - Photolithotrophic growth on land using atmospheric CO2 inevitably involves H2O vapour loss. Embryophytes greater than or equal to 100 mm tall are homoiohydric and endohydric with mass flow of aqueous solution through the xylem in tracheophytes. Structural details in Rhynie sporophytes enable modelling of the hydraulics of H2O supply to the transpiring surface, and the potential for gas exchange with the Devonian atmosphere. Xylem carrying H2O under tension involves programmed cell death, rigid cell walls and embolism repair; fossils provide little evidence on these functions other than the presence of lignin. The phenylalanine ammonia lyase essential for lignin synthesis came from horizontal gene transfer. Rhynie plants lack endodermes, limiting regulation of the supply of soil nutrients to shoots. The transfer of organic solutes from photosynthetic sites to growing and storage tissues involves mass flow through phloem in extant tracheophytes. Rhynie plants show little evidence of phloem; possible alternatives for transport of organic solutes are discussed. Extant examples of the arbuscular mycorrhizas found in Rhynie plants exchange soil-derived nutrients (especially P) for plant-derived organic matter, involving bidirectional mass flow along the hyphae. The aquatic cyanobacteria and the charalean Palaeonitella at Rhynie also have long-distance (relative to the size of the organism) transport.

    AB - Photolithotrophic growth on land using atmospheric CO2 inevitably involves H2O vapour loss. Embryophytes greater than or equal to 100 mm tall are homoiohydric and endohydric with mass flow of aqueous solution through the xylem in tracheophytes. Structural details in Rhynie sporophytes enable modelling of the hydraulics of H2O supply to the transpiring surface, and the potential for gas exchange with the Devonian atmosphere. Xylem carrying H2O under tension involves programmed cell death, rigid cell walls and embolism repair; fossils provide little evidence on these functions other than the presence of lignin. The phenylalanine ammonia lyase essential for lignin synthesis came from horizontal gene transfer. Rhynie plants lack endodermes, limiting regulation of the supply of soil nutrients to shoots. The transfer of organic solutes from photosynthetic sites to growing and storage tissues involves mass flow through phloem in extant tracheophytes. Rhynie plants show little evidence of phloem; possible alternatives for transport of organic solutes are discussed. Extant examples of the arbuscular mycorrhizas found in Rhynie plants exchange soil-derived nutrients (especially P) for plant-derived organic matter, involving bidirectional mass flow along the hyphae. The aquatic cyanobacteria and the charalean Palaeonitella at Rhynie also have long-distance (relative to the size of the organism) transport.

    KW - Apoplasm

    KW - Arbuscular mycorrhizas

    KW - Endodermis

    KW - Phloem

    KW - Symplasm

    KW - Xylem

    KW - Biological Transport

    KW - Plant Vascular Bundle/physiology

    KW - Scotland

    KW - Paleontology

    KW - Embryophyta/physiology

    KW - Fossils

    U2 - 10.1098/rstb.2016.0497

    DO - 10.1098/rstb.2016.0497

    M3 - Review article

    C2 - 29254962

    AN - SCOPUS:85038434424

    VL - 373

    SP - 1

    EP - 14

    JO - Philosophical Transactions of the Royal Society B - Biological Sciences

    JF - Philosophical Transactions of the Royal Society B - Biological Sciences

    SN - 0962-8436

    IS - 1739

    M1 - 20160497

    ER -