|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM299610969 |
| 003 |
DE-627 |
| 005 |
20231225100717.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2019 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1111/nph.16072
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0998.xml
|
| 035 |
|
|
|a (DE-627)NLM299610969
|
| 035 |
|
|
|a (NLM)31349369
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Perri, Saverio
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Xylem-phloem hydraulic coupling explains multiple osmoregulatory responses to salt stress
|
| 264 |
|
1 |
|c 2019
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 11.05.2020
|
| 500 |
|
|
|a Date Revised 30.09.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.
|
| 520 |
|
|
|a Salinity is known to affect plant productivity by limiting leaf-level carbon exchange, root water uptake, and carbohydrates transport in the phloem. However, the mechanisms through which plants respond to salt exposure by adjusting leaf gas exchange and xylem-phloem flow are still mostly unexplored. A physically based model coupling xylem, leaf, and phloem flows is here developed to explain different osmoregulation patterns across species. Hydraulic coupling is controlled by leaf water potential, ψl , and determined under four different maximization hypotheses: water uptake (1), carbon assimilation (2), sucrose transport (3), or (4) profit function - i.e. carbon gain minus hydraulic risk. All four hypotheses assume that finite transpiration occurs, providing a further constraint on ψl . With increasing salinity, the model captures different transpiration patterns observed in halophytes (nonmonotonic) and glycophytes (monotonically decreasing) by reproducing the species-specific strength of xylem-leaf-phloem coupling. Salt tolerance thus emerges as plant's capability of differentiating between salt- and drought-induced hydraulic risk, and to regulate internal flows and osmolytes accordingly. Results are shown to be consistent across optimization schemes (1-3) for both halophytes and glycophytes. In halophytes, however, profit-maximization (4) predicts systematically higher ψl than (1-3), pointing to the need of an updated definition of hydraulic cost for halophytes under saline conditions
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
|
| 650 |
|
4 |
|a halophytes
|
| 650 |
|
4 |
|a CO2 enrichment
|
| 650 |
|
4 |
|a osmoregulation
|
| 650 |
|
4 |
|a photosynthesis optimization
|
| 650 |
|
4 |
|a plant-water relations
|
| 650 |
|
4 |
|a salt stress
|
| 650 |
|
4 |
|a salt tolerance
|
| 650 |
|
7 |
|a Water
|2 NLM
|
| 650 |
|
7 |
|a 059QF0KO0R
|2 NLM
|
| 650 |
|
7 |
|a Sodium Chloride
|2 NLM
|
| 650 |
|
7 |
|a 451W47IQ8X
|2 NLM
|
| 700 |
1 |
|
|a Katul, Gabriel G
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Molini, Annalisa
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 224(2019), 2 vom: 09. Okt., Seite 644-662
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
|
| 773 |
1 |
8 |
|g volume:224
|g year:2019
|g number:2
|g day:09
|g month:10
|g pages:644-662
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1111/nph.16072
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 224
|j 2019
|e 2
|b 09
|c 10
|h 644-662
|