Results 11 to 20 of about 2,535,891 (297)

Evolution of water transport and xylem structure [PDF]

open access: yesInternational Journal of Plant Sciences, 2003
journal articleLand plants need water to replace the evaporation that occurs while atmospheric CO2 is diffusing into photosynthetic tissue. The water-for-carbon exchange rate is poor, and evolutionary history indicates a progression of innovations for ...
Sperry, John S.
core   +2 more sources

Stomatal closure prevents xylem transport of green leaf volatiles and impairs their systemic function in plants.

open access: yesPlant, Cell and Environment, 2023
Plants perceive environmental stresses as whole organisms via distant signals conveying danger messages through their vasculature. In parallel to vascular transport, airborne plant volatile compounds, including green leaf volatiles (GLVs), can bypass the
Feizollah A. Maleki   +6 more
semanticscholar   +1 more source

The dynamic multi-functionality of leaf water transport outside the xylem.

open access: yesNew Phytologist, 2023
A surge of papers have reported low leaf vulnerability to xylem embolism during drought. Here, we focus on the less studied, and more sensitive, outside-xylem leaf hydraulic responses to multiple internal and external conditions.
C. Scoffoni   +3 more
semanticscholar   +1 more source

Trade-offs among transport, support, and storage in xylem from shrubs in a semiarid chaparral environment tested with structural equation modeling

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Plant vascular systems play a central role in global water and carbon cycles and drought resistance. These vascular systems perform multiple functions that affect the fitness of plants, and trade-offs are present among these functions.
R. Pratt   +5 more
semanticscholar   +1 more source

Terpenoids are transported in the xylem sap of Norway spruce [PDF]

open access: yesPlant, Cell & Environment, 2020
AbstractNorway spruce is a conifer storing large amounts of terpenoids in resin ducts of various tissues. Parts of the terpenoids stored in needles can be emitted together with de novo synthesized terpenoids. Since previous studies provided hints on xylem transported terpenoids as a third emission source, we tested if terpenoids are transported in ...
Duan, Qiuxiao   +2 more
openaire   +3 more sources

Dye-tracer-aided investigation of xylem water transport velocity distributions [PDF]

open access: yes, 2023
The vast majority of studies investigating the source depths in the soil of root water uptake with the help of stable water isotopes implicitly assumes that the isotopic signatures of root water uptake and xylem water are identical. In this study we show
M. Weiler, S. Seeger
core   +1 more source

Transport of Sodium into the Xylem Exudate of Tobacco [PDF]

open access: yesPlant Physiology, 1972
When tobacco (Nicotiana tabacum L. var. Virginia Gold) plants were pretreated with Na ((22)Na) several days before detopping, from 2.3 to 4.9% of Na previously accumulated in roots appeared in the xylem exudate in 7 days after detopping. Na from the external medium, however, was readily transported to the exudate.
A, Wallace   +2 more
openaire   +2 more sources

Transport of Nitrogen in the Xylem of Soybean Plants [PDF]

open access: yesPlant Physiology, 1979
Experiments were conducted to characterize the distribution of N compounds in the xylem sap of nodulated and nonnodulated soybean plants through development and to determine the effects of exogenous N on the distribution of N compounds in the xylem. Xylem sap was collected from nodulated and nonnodulated greenhouse-grown soybean plants (Glycine max [L.]
P R, McClure, D W, Israel
openaire   +2 more sources

Xylem-based long-distance transport and phloem remobilization of copper in Salix integra Thunb.

open access: yesJournal of Hazardous Materials, 2020
Due to high biomass and an ability to accumulate metals, fast-growing tree species are good candidates for phytoremediation. However, little is known about the long-distance transport of heavy metals in woody plants. The present work focused on the xylem
Yini Cao   +6 more
semanticscholar   +1 more source

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