Plant thermotropism: an underexplored thermal engagement and avoidance strategy

Zanten, Martijn van; Ai, Haiyue; Quint, Marcel

doi:10.1093/jxb/erab209

Cited by 9 publications

(6 citation statements)

References 63 publications

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“…Just like above‐ground organs, root systems are exposed to a range of different (soil) temperatures, affecting the uptake and transport of water and nutrients, root growth, and development (Koevoets et al , 2016 ; de Lima et al , 2021 ). Noteworthy, roots of some species are even able to actively adjust their growth in a directional manner towards or away from a temperature source in a positive or negative thermotropic manner, respectively (van Zanten et al , 2021 ). The aim of this study was therefore to pick up existing knowledge about different aspects of root responses to elevated ambient temperature and conduct experiments necessary to connect the existing fragmentary understanding to derive a comprehensive model of the physiological mechanism(s) regulating root thermomorphogenesis.…”

Section: Discussionmentioning

confidence: 99%

Auxin‐dependent regulation of cell division rates governs root thermomorphogenesis

Bellstaedt

Bartusch

et al. 2023

The EMBO Journal

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Roots are highly plastic organs enabling plants to adapt to a changing below-ground environment. In addition to abiotic factors like nutrients or mechanical resistance, plant roots also respond to temperature variation. Below the heat stress threshold, Arabidopsis thaliana seedlings react to elevated temperature by promoting primary root growth, possibly to reach deeper soil regions with potentially better water saturation. While above-ground thermomorphogenesis is enabled by thermo-sensitive cell elongation, it was unknown how temperature modulates root growth. We here show that roots are able to sense and respond to elevated temperature independently of shoot-derived signals. This response is mediated by a yet unknown root thermosensor that employs auxin as a messenger to relay temperature signals to the cell cycle. Growth promotion is achieved primarily by increasing cell division rates in the root apical meristem, depending on de novo local auxin biosynthesis and temperature-sensitive organization of the polar auxin transport system. Hence, the primary cellular target of elevated ambient temperature differs fundamentally between root and shoot tissues, while the messenger auxin remains the same.

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Section: Discussionmentioning

confidence: 99%

Auxin‐dependent regulation of cell division rates governs root thermomorphogenesis

Bellstaedt

Bartusch

et al. 2023

The EMBO Journal

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“…Just like above-ground organs, root systems are exposed to a range of different (soil) temperatures, affecting the uptake and transport of water and nutrients, root growth and development (de Lima et al ., 2021; Koevets et al ., 2016). Noteworthy, roots of some species are even able to actively adjust their growth in a directional manner towards or away from a temperature source in a positive or negative thermotropic manner, respectively (van Zanten et al ., 2021).…”

Section: Discussionmentioning

confidence: 99%

Auxin-dependent acceleration of cell division rates regulates root growth at elevated temperature

Quint

Bellstaedt

et al. 2022

Preprint

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Roots are highly plastic organs enabling plants to acclimate to a changing below-ground environment. In addition to abiotic factors like nutrients or mechanical resistance, plant roots also respond to temperature variation. Below the heat stress threshold, Arabidopsis thaliana seedlings react to elevated temperature by promoting primary root growth, possibly to reach deeper soil regions with potentially better water saturation. While above-ground thermomorphogenesis is enabled by thermo-sensitive cell elongation, it was unknown how temperature modulates root growth. We here show that roots are able to sense and respond to elevated temperature independent of shoot-derived signals. An unknown root thermosensor seems to employ auxin as a messenger to promote primary root growth. Growth is primarily achieved by accelerating cell division rates in the root apical meristem, likely maintained via temperature-sensitive organization of the polar auxin transport system. Hence, the primary cellular target of elevated ambient temperature differs fundamentally between root and shoot tissues, while the messenger auxin that relays temperature information to elongating or dividing cells, respectively, remains the same.

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“…when converting to other forms of energy, creating conditions for processing and storing products on site (which reduces transportation costs compared to raw materials and allows getting the maximum profit at the current level of development of electronic commerce), pest repelling [46]. Options for using the obtained energy for electric [47], thermal [48,49], magnetic [50][51][52], mechanical [53], and acoustic [54] stimulation of plant growth will be considered; control of temperature and light conditions; chemical composition, humidity, flow of air, water and substrate; power supply of agricultural machinery and equipment, incl. for primary processing and storage of products.…”

Section: Future Trendsmentioning

confidence: 99%

A Review of Current Activities and Future Trends in Agrivoltaics

Klokov¹,

Loktionov²,

Loktionov³

et al. 2023

Preprint

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Agrivoltaics (Agri-PV, AV) - the joint use of land for the production of agricultural products and energy - has recently been rapidly gaining popularity, as it can significantly increase income per unit of land area. In a broad sense, AV systems can include converters of not only solar, but also energy from any other local renewable source, including bioenergy. Current approach to AV represents an evolutionary development of agroecology and integrated PV power supply to the grid. That results in nearly doubled income per unit area. While AV could provide a basis for revolution in large-scale unmanned precision (intelligent) farming which is impossible without on-site power supply, chemical fertilisation and pesticides reduction, and yield processing on-site. These approaches could change the logistics of agriculture dramatically, and so, reduce its carbon footprint. Utilisation of decommissioned solar panels in AV could make the technology twice cheaper and postpone the need for bulk PV recycling. This review is mainly focused on the possibilities for AV to be stronger integrated into agriculture that could also help in relevant legal collisions (considered as neither rather than both components) resolution.

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Plant thermotropism: an underexplored thermal engagement and avoidance strategy

Cited by 9 publications

References 63 publications

Auxin‐dependent regulation of cell division rates governs root thermomorphogenesis

Auxin‐dependent regulation of cell division rates governs root thermomorphogenesis

Auxin-dependent acceleration of cell division rates regulates root growth at elevated temperature

A Review of Current Activities and Future Trends in Agrivoltaics

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