Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.

Leaf nitrogen concentration (Nm), mass-to-area ratio, amount of nitrogen per unit leaf area (Na), nonstructural carbohydrate concentration (TNCa), maximal rate of carboxylation (Vcmax), light-saturated rate of photosynthetic electron transport (Jmax), dark respiration (Rd), net photosynthetic assimilation (Anet), quantum yield of photosystem II ([phi]PSII), and intercellular CO2 concentration (Ci) were measured in Mangifera indica L. leaves on three types of fruit-bearing branches (non-girdled, NG; girdled with high (HFL) and low (LFL) fruit load), experiencing similar light exposure. TNCa, Vcmax/Na, Jmax/Na, Rd/Na, Ci, and the initial quantum yield of photosynthetic electron transport ([alpha]) were similar in both HFL and NG treatments, but Nm, Na, and photosynthetic capacity parameters (Vcmax and Jmax) were lower in the HFL than in the NG treatment. The strong depressing effect of girdling on leaf nitrogen concentration cannot therefore be attributed to a change in TNCa. By contrast, Na and TNCa were lower and higher, respectively, in the LFL than in the HFL treatment, suggesting that carbohydrate content may become the driving force behind photosynthetic acclimation to changing source-sink relationships, like the ones resulting from the presence of developing fruits. Vcmax/Na and Jmax/Na were lower in the LFL than in the HFL treatment, while Rd/Na, Ci, and [alpha] were not affected by fruit load. It is concluded that girdling and high fruit load affect photosynthesis permanently by decreasing and increasing, respectively, leaf nitrogen concentration. Fruit load, moreover, may have an additional effect on photosynthetic capacity by affecting the relationship between Vcmax and Jmax, and Na.

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Main Authors: Urban, Laurent, Lechaudel, Mathieu, Lu, Ping
Format: article biblioteca
Language:eng
Subjects:F61 - Physiologie végétale - Nutrition, Mangifera indica, photosynthèse, feuille, fructification, incision annulaire, stomate, amidon, teneur en azote, teneur en glucides, relation source puits, http://aims.fao.org/aos/agrovoc/c_4575, http://aims.fao.org/aos/agrovoc/c_5812, http://aims.fao.org/aos/agrovoc/c_4243, http://aims.fao.org/aos/agrovoc/c_15971, http://aims.fao.org/aos/agrovoc/c_6606, http://aims.fao.org/aos/agrovoc/c_7423, http://aims.fao.org/aos/agrovoc/c_7369, http://aims.fao.org/aos/agrovoc/c_5193, http://aims.fao.org/aos/agrovoc/c_1298, http://aims.fao.org/aos/agrovoc/c_34110,
Online Access:http://agritrop.cirad.fr/521385/
http://agritrop.cirad.fr/521385/1/521385.pdf
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spelling dig-cirad-fr-5213852024-01-28T12:41:09Z http://agritrop.cirad.fr/521385/ http://agritrop.cirad.fr/521385/ Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L. Urban Laurent, Lechaudel Mathieu, Lu Ping. 2004. Journal of Experimental Botany, 55 (405) : 2075-2085.https://doi.org/10.1093/jxb/erh220 <https://doi.org/10.1093/jxb/erh220> Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L. Urban, Laurent Lechaudel, Mathieu Lu, Ping eng 2004 Journal of Experimental Botany F61 - Physiologie végétale - Nutrition Mangifera indica photosynthèse feuille fructification incision annulaire stomate amidon teneur en azote teneur en glucides relation source puits http://aims.fao.org/aos/agrovoc/c_4575 http://aims.fao.org/aos/agrovoc/c_5812 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_15971 http://aims.fao.org/aos/agrovoc/c_6606 http://aims.fao.org/aos/agrovoc/c_7423 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5193 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_34110 Leaf nitrogen concentration (Nm), mass-to-area ratio, amount of nitrogen per unit leaf area (Na), nonstructural carbohydrate concentration (TNCa), maximal rate of carboxylation (Vcmax), light-saturated rate of photosynthetic electron transport (Jmax), dark respiration (Rd), net photosynthetic assimilation (Anet), quantum yield of photosystem II ([phi]PSII), and intercellular CO2 concentration (Ci) were measured in Mangifera indica L. leaves on three types of fruit-bearing branches (non-girdled, NG; girdled with high (HFL) and low (LFL) fruit load), experiencing similar light exposure. TNCa, Vcmax/Na, Jmax/Na, Rd/Na, Ci, and the initial quantum yield of photosynthetic electron transport ([alpha]) were similar in both HFL and NG treatments, but Nm, Na, and photosynthetic capacity parameters (Vcmax and Jmax) were lower in the HFL than in the NG treatment. The strong depressing effect of girdling on leaf nitrogen concentration cannot therefore be attributed to a change in TNCa. By contrast, Na and TNCa were lower and higher, respectively, in the LFL than in the HFL treatment, suggesting that carbohydrate content may become the driving force behind photosynthetic acclimation to changing source-sink relationships, like the ones resulting from the presence of developing fruits. Vcmax/Na and Jmax/Na were lower in the LFL than in the HFL treatment, while Rd/Na, Ci, and [alpha] were not affected by fruit load. It is concluded that girdling and high fruit load affect photosynthesis permanently by decreasing and increasing, respectively, leaf nitrogen concentration. Fruit load, moreover, may have an additional effect on photosynthetic capacity by affecting the relationship between Vcmax and Jmax, and Na. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/521385/1/521385.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1093/jxb/erh220 10.1093/jxb/erh220 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=182401 info:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/erh220 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1093/jxb/erh220
institution CIRAD FR
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-cirad-fr
tag biblioteca
region Europa del Oeste
libraryname Biblioteca del CIRAD Francia
language eng
topic F61 - Physiologie végétale - Nutrition
Mangifera indica
photosynthèse
feuille
fructification
incision annulaire
stomate
amidon
teneur en azote
teneur en glucides
relation source puits
http://aims.fao.org/aos/agrovoc/c_4575
http://aims.fao.org/aos/agrovoc/c_5812
http://aims.fao.org/aos/agrovoc/c_4243
http://aims.fao.org/aos/agrovoc/c_15971
http://aims.fao.org/aos/agrovoc/c_6606
http://aims.fao.org/aos/agrovoc/c_7423
http://aims.fao.org/aos/agrovoc/c_7369
http://aims.fao.org/aos/agrovoc/c_5193
http://aims.fao.org/aos/agrovoc/c_1298
http://aims.fao.org/aos/agrovoc/c_34110
F61 - Physiologie végétale - Nutrition
Mangifera indica
photosynthèse
feuille
fructification
incision annulaire
stomate
amidon
teneur en azote
teneur en glucides
relation source puits
http://aims.fao.org/aos/agrovoc/c_4575
http://aims.fao.org/aos/agrovoc/c_5812
http://aims.fao.org/aos/agrovoc/c_4243
http://aims.fao.org/aos/agrovoc/c_15971
http://aims.fao.org/aos/agrovoc/c_6606
http://aims.fao.org/aos/agrovoc/c_7423
http://aims.fao.org/aos/agrovoc/c_7369
http://aims.fao.org/aos/agrovoc/c_5193
http://aims.fao.org/aos/agrovoc/c_1298
http://aims.fao.org/aos/agrovoc/c_34110
spellingShingle F61 - Physiologie végétale - Nutrition
Mangifera indica
photosynthèse
feuille
fructification
incision annulaire
stomate
amidon
teneur en azote
teneur en glucides
relation source puits
http://aims.fao.org/aos/agrovoc/c_4575
http://aims.fao.org/aos/agrovoc/c_5812
http://aims.fao.org/aos/agrovoc/c_4243
http://aims.fao.org/aos/agrovoc/c_15971
http://aims.fao.org/aos/agrovoc/c_6606
http://aims.fao.org/aos/agrovoc/c_7423
http://aims.fao.org/aos/agrovoc/c_7369
http://aims.fao.org/aos/agrovoc/c_5193
http://aims.fao.org/aos/agrovoc/c_1298
http://aims.fao.org/aos/agrovoc/c_34110
F61 - Physiologie végétale - Nutrition
Mangifera indica
photosynthèse
feuille
fructification
incision annulaire
stomate
amidon
teneur en azote
teneur en glucides
relation source puits
http://aims.fao.org/aos/agrovoc/c_4575
http://aims.fao.org/aos/agrovoc/c_5812
http://aims.fao.org/aos/agrovoc/c_4243
http://aims.fao.org/aos/agrovoc/c_15971
http://aims.fao.org/aos/agrovoc/c_6606
http://aims.fao.org/aos/agrovoc/c_7423
http://aims.fao.org/aos/agrovoc/c_7369
http://aims.fao.org/aos/agrovoc/c_5193
http://aims.fao.org/aos/agrovoc/c_1298
http://aims.fao.org/aos/agrovoc/c_34110
Urban, Laurent
Lechaudel, Mathieu
Lu, Ping
Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.
description Leaf nitrogen concentration (Nm), mass-to-area ratio, amount of nitrogen per unit leaf area (Na), nonstructural carbohydrate concentration (TNCa), maximal rate of carboxylation (Vcmax), light-saturated rate of photosynthetic electron transport (Jmax), dark respiration (Rd), net photosynthetic assimilation (Anet), quantum yield of photosystem II ([phi]PSII), and intercellular CO2 concentration (Ci) were measured in Mangifera indica L. leaves on three types of fruit-bearing branches (non-girdled, NG; girdled with high (HFL) and low (LFL) fruit load), experiencing similar light exposure. TNCa, Vcmax/Na, Jmax/Na, Rd/Na, Ci, and the initial quantum yield of photosynthetic electron transport ([alpha]) were similar in both HFL and NG treatments, but Nm, Na, and photosynthetic capacity parameters (Vcmax and Jmax) were lower in the HFL than in the NG treatment. The strong depressing effect of girdling on leaf nitrogen concentration cannot therefore be attributed to a change in TNCa. By contrast, Na and TNCa were lower and higher, respectively, in the LFL than in the HFL treatment, suggesting that carbohydrate content may become the driving force behind photosynthetic acclimation to changing source-sink relationships, like the ones resulting from the presence of developing fruits. Vcmax/Na and Jmax/Na were lower in the LFL than in the HFL treatment, while Rd/Na, Ci, and [alpha] were not affected by fruit load. It is concluded that girdling and high fruit load affect photosynthesis permanently by decreasing and increasing, respectively, leaf nitrogen concentration. Fruit load, moreover, may have an additional effect on photosynthetic capacity by affecting the relationship between Vcmax and Jmax, and Na.
format article
topic_facet F61 - Physiologie végétale - Nutrition
Mangifera indica
photosynthèse
feuille
fructification
incision annulaire
stomate
amidon
teneur en azote
teneur en glucides
relation source puits
http://aims.fao.org/aos/agrovoc/c_4575
http://aims.fao.org/aos/agrovoc/c_5812
http://aims.fao.org/aos/agrovoc/c_4243
http://aims.fao.org/aos/agrovoc/c_15971
http://aims.fao.org/aos/agrovoc/c_6606
http://aims.fao.org/aos/agrovoc/c_7423
http://aims.fao.org/aos/agrovoc/c_7369
http://aims.fao.org/aos/agrovoc/c_5193
http://aims.fao.org/aos/agrovoc/c_1298
http://aims.fao.org/aos/agrovoc/c_34110
author Urban, Laurent
Lechaudel, Mathieu
Lu, Ping
author_facet Urban, Laurent
Lechaudel, Mathieu
Lu, Ping
author_sort Urban, Laurent
title Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.
title_short Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.
title_full Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.
title_fullStr Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.
title_full_unstemmed Effect of fruit load and girding on leaf photosynthesis in Mangifera indica L.
title_sort effect of fruit load and girding on leaf photosynthesis in mangifera indica l.
url http://agritrop.cirad.fr/521385/
http://agritrop.cirad.fr/521385/1/521385.pdf
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AT lechaudelmathieu effectoffruitloadandgirdingonleafphotosynthesisinmangiferaindical
AT luping effectoffruitloadandgirdingonleafphotosynthesisinmangiferaindical
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