|
|
|
|
| LEADER |
01000caa a22002652c 4500 |
| 001 |
NLM368969851 |
| 003 |
DE-627 |
| 005 |
20250305205130.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
240229s2024 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1111/nph.19614
|2 doi
|
| 028 |
5 |
2 |
|a pubmed25n1229.xml
|
| 035 |
|
|
|a (DE-627)NLM368969851
|
| 035 |
|
|
|a (NLM)38406986
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Ouyang, Wenjing
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Roles for leakiness and O2 evolution in explaining lower-than-theoretical quantum yields of photosynthesis in the PEP-CK subtype of C4 plants
|
| 264 |
|
1 |
|c 2024
|
| 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 22.03.2024
|
| 500 |
|
|
|a Date Revised 22.03.2024
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a © 2024 The Authors New Phytologist © 2024 New Phytologist Foundation.
|
| 520 |
|
|
|a Theoretically, the PEP-CK C4 subtype has a higher quantum yield of CO2 assimilation ( Φ CO 2 ) than NADP-ME or NAD-ME subtypes because ATP required for operating the CO2-concentrating mechanism is believed to mostly come from the mitochondrial electron transport chain (mETC). However, reported Φ CO 2 is not higher in PEP-CK than in the other subtypes. We hypothesise, more photorespiration, associated with higher leakiness and O2 evolution in bundle-sheath (BS) cells, cancels out energetic advantages in PEP-CK species. Nine species (two to four species per subtype) were evaluated by gas exchange, chlorophyll fluorescence, and two-photon microscopy to estimate the BS conductance (gbs) and leakiness using a biochemical model. Average gbs estimates were 2.9, 4.8, and 5.0 mmol m-2 s-1 bar-1, and leakiness values were 0.129, 0.179, and 0.180, in NADP-ME, NAD-ME, and PEP-CK species, respectively. The BS CO2 level was somewhat higher, O2 level was marginally lower, and thus, photorespiratory loss was slightly lower, in NADP-ME than in NAD-ME and PEP-CK species. Differences in these parameters existed among species within a subtype, and gbs was co-determined by biochemical decarboxylating sites and anatomical characteristics. Our hypothesis and results partially explain variations in observed Φ CO 2 , but suggest that PEP-CK species probably use less ATP from mETC than classically defined PEP-CK mechanisms
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a C4 subtypes
|
| 650 |
|
4 |
|a fluorescence microscopy
|
| 650 |
|
4 |
|a light use efficiency
|
| 650 |
|
4 |
|a modelling
|
| 650 |
|
4 |
|a quantum efficiency
|
| 650 |
|
7 |
|a Carbon Dioxide
|2 NLM
|
| 650 |
|
7 |
|a 142M471B3J
|2 NLM
|
| 650 |
|
7 |
|a NAD
|2 NLM
|
| 650 |
|
7 |
|a 0U46U6E8UK
|2 NLM
|
| 650 |
|
7 |
|a NADP
|2 NLM
|
| 650 |
|
7 |
|a 53-59-8
|2 NLM
|
| 650 |
|
7 |
|a Adenosine Triphosphate
|2 NLM
|
| 650 |
|
7 |
|a 8L70Q75FXE
|2 NLM
|
| 700 |
1 |
|
|a Wientjes, Emilie
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a van der Putten, Peter E L
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Caracciolo, Ludovico
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zhao, Ruixuan
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Agho, Collins
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Chiurazzi, Maurizio Junior
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Bongers, Marius
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Struik, Paul C
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a van Amerongen, Herbert
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Yin, Xinyou
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 242(2024), 2 vom: 26. Apr., Seite 431-443
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
|
| 773 |
1 |
8 |
|g volume:242
|g year:2024
|g number:2
|g day:26
|g month:04
|g pages:431-443
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1111/nph.19614
|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 242
|j 2024
|e 2
|b 26
|c 04
|h 431-443
|