2012
DOI: 10.1111/j.1469-8137.2012.04366.x
|View full text |Cite
|
Sign up to set email alerts
|

Transport of root‐respired CO2 via the transpiration stream affects aboveground carbon assimilation and CO2 efflux in trees

Abstract: SummaryUpward transport of CO 2 via the transpiration stream from belowground to aboveground tissues occurs in tree stems. Despite potentially important implications for our understanding of plant physiology, the fate of internally transported CO 2 derived from autotrophic respiratory processes remains unclear.We infused a 13 CO 2 -labeled aqueous solution into the base of 7-yr-old field-grown eastern cottonwood (Populus deltoides) trees to investigate the effect of xylem-transported CO 2 derived from the root… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

4
145
0
5

Year Published

2015
2015
2023
2023

Publication Types

Select...
3
3
1
1

Relationship

0
8

Authors

Journals

citations
Cited by 134 publications
(154 citation statements)
references
References 47 publications
4
145
0
5
Order By: Relevance
“…The soil CO 2 efflux measured at the soil's surface is often assumed to approximate the "true soil respiration," though this assumption has been recently challenged by the finding that respired CO 2 may be dissolved in soil solutions (Emmerich, 2003;Hastings et al, 2005;Stevenson and Verburg, 2006;Schlesinger et al, 2009;Tamir et al, 2011;Ma et al, 2013;Roland et al, 2013;Angert et al, 2015) or root xylem water and carried upward in the transpiration stream (Aubrey and Teskey, 2009;Bloemen et al, 2013). Nevertheless, some studies have shown that the ratio of soil surface CO 2 efflux to O 2 influx (a better indicator for biological activities) is around 1.0 (0.9-1.06) in various ecosystems (Seibt et al, 2004;Angert et al, 2012;Ishidoya et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…The soil CO 2 efflux measured at the soil's surface is often assumed to approximate the "true soil respiration," though this assumption has been recently challenged by the finding that respired CO 2 may be dissolved in soil solutions (Emmerich, 2003;Hastings et al, 2005;Stevenson and Verburg, 2006;Schlesinger et al, 2009;Tamir et al, 2011;Ma et al, 2013;Roland et al, 2013;Angert et al, 2015) or root xylem water and carried upward in the transpiration stream (Aubrey and Teskey, 2009;Bloemen et al, 2013). Nevertheless, some studies have shown that the ratio of soil surface CO 2 efflux to O 2 influx (a better indicator for biological activities) is around 1.0 (0.9-1.06) in various ecosystems (Seibt et al, 2004;Angert et al, 2012;Ishidoya et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…Third, processes within roots may also cause the CO 2 efflux to be different from the actual respiration rate. For example, the CO 2 respired by roots can be dissolved in the xylem water and carried upward in the transpiration stream (Aubrey and Teskey, 2009;Bloemen et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…La prueba definitiva del transporte axial de CO 2 la han proporcionado los estudios con marcadores isotópicos de carbono, que han mostrado como CO 2 marcado incorporado a la planta por las raíces llega hasta las hojas donde se asimila a través de la fotosíntesis (Bloemen et al 2013).…”
Section: Transporte Axial De Counclassified
“…Utilizando marcadores isotópicos se ha puesto de manifiesto recientemente que hasta un total del 17 % del isótopo de carbono 13 C proporcionado a las raíces de árboles jóvenes de Populus deltoides se asimilaba, sobre todo en las ramas más jóvenes (12 %), pero también en las hojas (3 %; Bloemen et al 2013). Del mismo modo, se observó que el 35 % del carbono marcado y transportado en la savia era re-asimilado en ramillos y hojas de Platanus occidentalis, suponiendo esta cantidad el 6% de la asimilación de CO 2 atmosférico por parte de las hojas (McGuire et al 2009).…”
Section: Reciclaje De Counclassified
See 1 more Smart Citation