The effect of xylem vessel diameter on potential hydraulic conductivity in different rice stem longitudinal positions

Morães, Diogo Henrique Morato de; Mesquita, Márcio; Graciano‐Ribeiro, Dalva; Araújo, Daniel Somma de; Battisti, Rafael; Flores, Rilner Alves; Melo, Hyrandir Cabral de; Casaroli, Derblai

doi:10.1016/j.flora.2022.152147

Cited by 5 publications

(3 citation statements)

References 40 publications

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“…A recent study on rice revealed variations in xylem vessel diameter in different stem longitudinal positions and environments and concluded that small xylem vessels may have increased pressure to enhance water movement (de Moraes et al. 2022). In barley, perhaps small xylem vessels are advantageous in freezing environments because they are less vulnerable to physical damage from ice formation (Breman et al.…”

Section: Discussionmentioning

confidence: 99%

Small Stomates and Xylem Vessels Associated With Freeze Tolerance in Winter Barley

Liang,

Hu,

McDougall

et al. 2024

J Agronomy Crop Science

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Freeze tolerance is a complex agronomic trait that is difficult to evaluate in the field because of year‐to‐year variation in weather. Discovering plant characteristics closely related to freeze tolerance would enable more effective selection for this important trait. To explore possible physiological mechanisms and search for useful characteristics related to freeze tolerance in winter barley, we conducted field and growth chamber experiments with seven freeze‐tolerant and seven freeze‐susceptible genotypes that exhibited contrasting winter survival in preliminary field screenings. In a 2‐year field experiment, malondialdehyde, proline and water‐soluble carbohydrate concentrations were measured during cold acclimation and deacclimation to investigate differences in osmoregulation and membrane stability between freeze‐tolerant and freeze‐sensitive genotypes. All parameters varied by sampling year, and significant differences between freeze tolerance groups were found mainly during cold deacclimation in the spring. In growth chamber experiments, the size of xylem vessels and stomates was measured with and without cold acclimation. Freeze‐tolerant genotypes had smaller xylem vessels and stomates than freeze‐sensitive genotypes with and without cold acclimation, and small stomatal length was associated with a small xylem vessel area. Thus, it may be possible to improve freeze tolerance in winter barley by selecting smaller xylem and stomate cells. This study also validated germplasms of winter barley with differential freeze tolerance for future projects on breeding for improving winter hardiness and on plant physiology and genetics in response to freezing stress.

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Section: Discussionmentioning

confidence: 99%

Small Stomates and Xylem Vessels Associated With Freeze Tolerance in Winter Barley

Liang,

Hu,

McDougall

et al. 2024

J Agronomy Crop Science

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“…The morphological characteristics of the xylem elements of different tree species influence the sap rising [15,16], causing the different concentrations of organic components and inorganic ions in the xylem sap of different tree species. The concentration of organic components and inorganic ions in the xylem sap affects the dynamic viscosity and interfacial tension of the xylem sap.…”

Section: Introductionmentioning

confidence: 99%

Impacting Factors of Changes in Dynamic Viscosity and Interfacial Tension of Wood Xylem Sap

Wen

Wang

et al. 2023

Forests

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The growth of trees is inseparable from the water transpiration in the xylem. To explore the mechanism of sap rising in the xylem, the monthly variation of the dynamic viscosity and interfacial tension of the xylem sap of different tree species and their impacting factors were analyzed. In this experiment, the dynamic viscosity and interfacial tension of the xylem sap of poplar and metasequoia were measured within one year, as well as the sap velocity of poplar. Gas chromatography–mass spectrometry and atomic absorption spectroscopy were used to detect the organic components and inorganic cations of the xylem sap of poplar and metasequoia. By analyzing the influence of organic components and the inorganic cation concentration of xylem sap on the dynamic viscosity and interfacial tension of xylem sap, this study revealed that the dynamic viscosity and the interfacial tension of poplar and metasequoia samples in different months changed in basically the same manner. However, the dynamic viscosity and the interfacial tension of the metasequoia samples were generally higher than those of the poplar samples. The dynamic viscosity of the xylem sap had an obvious exponential relationship with temperature, while the interfacial tension of the xylem sap had an inconspicuous linear relationship with temperature. In addition, disparate xylem structures of the broad-leaved tree poplar and the coniferous tree metasequoia led to different concentrations of organic components and inorganic cations in their xylem sap, which made a difference in the dynamic viscosity and interfacial tension between poplar and metasequoia samples.

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“…Ao atingir os vasos xilemáticos, os fenômenos de transpiração e capilaridade estariam associados a movimentação das nanoestruturas até as folhas (HU;LI, 2022;. A distribuição das nanoestruturas pelos elementos dos vasos não seria limitada pelo tamanho pois o diâmetro desses vasos é maior do que o diâmetro de nanoestruturas (até 500 nm) (MORAES et al, 2022). Com isso, as nanoestruturas poderiam se mover pelos elementos dos vasos e serem distribuídas até as folhas (HU; LI, 2022).…”

Section: Pulverização Foliarunclassified

Aplicação de dsRNA sintético ou associado a nanocarreadores de zeína para controle de Tuta absoluta (Meyrick, 1917) por RNAi

Rodrigues

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The effect of xylem vessel diameter on potential hydraulic conductivity in different rice stem longitudinal positions

Cited by 5 publications

References 40 publications

Small Stomates and Xylem Vessels Associated With Freeze Tolerance in Winter Barley

Small Stomates and Xylem Vessels Associated With Freeze Tolerance in Winter Barley

Impacting Factors of Changes in Dynamic Viscosity and Interfacial Tension of Wood Xylem Sap

Aplicação de dsRNA sintético ou associado a nanocarreadores de zeína para controle de Tuta absoluta (Meyrick, 1917) por RNAi

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