Root anatomical traits contribute to deeper rooting of maize under compacted field conditions.
Aerenchyma
compaction
cortical cell file number
root class
rooting depth
thickening
Journal
Journal of experimental botany
ISSN: 1460-2431
Titre abrégé: J Exp Bot
Pays: England
ID NLM: 9882906
Informations de publication
Date de publication:
06 07 2020
06 07 2020
Historique:
received:
18
06
2019
accepted:
30
04
2020
pubmed:
19
5
2020
medline:
15
5
2021
entrez:
19
5
2020
Statut:
ppublish
Résumé
To better understand the role of root anatomy in regulating plant adaptation to soil mechanical impedance, 12 maize lines were evaluated in two soils with and without compaction treatments under field conditions. Penetrometer resistance was 1-2 MPa greater in the surface 30 cm of the compacted plots at a water content of 17-20% (v/v). Root thickening in response to compaction varied among genotypes and was negatively associated with rooting depth at one field site under non-compacted plots. Thickening was not associated with rooting depth on compacted plots. Genotypic variation in root anatomy was related to rooting depth. Deeper-rooting plants were associated with reduced cortical cell file number in combination with greater mid cortical cell area for node 3 roots. For node 4, roots with increased aerenchyma were deeper roots. A greater influence of anatomy on rooting depth was observed for the thinner root classes. We found no evidence that root thickening is related to deeper rooting in compacted soil; however, anatomical traits are important, especially for thinner root classes.
Identifiants
pubmed: 32420593
pii: 5838731
doi: 10.1093/jxb/eraa165
pmc: PMC7337194
doi:
Substances chimiques
Soil
0
Water
059QF0KO0R
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
4243-4257Informations de copyright
© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissions@oup.com.
Références
Ann Bot. 2014 Jan;113(1):181-9
pubmed: 24249807
J Exp Bot. 2013 Nov;64(15):4761-77
pubmed: 24043852
Ann Bot. 2013 Jul;112(2):347-57
pubmed: 23328767
Plant Physiol. 2014 Oct;166(2):726-35
pubmed: 24891611
Nat Methods. 2012 Jun 28;9(7):676-82
pubmed: 22743772
J Exp Bot. 2006;57(2):437-47
pubmed: 16317041
J Exp Bot. 2015 Apr;66(8):2199-210
pubmed: 25582451
Plant Physiol. 2017 Aug;174(4):2333-2347
pubmed: 28667049
Plant Cell Environ. 2018 Jul;41(7):1579-1592
pubmed: 29574982
Funct Plant Biol. 2014 May;41(6):581-597
pubmed: 32481015
Ann Bot. 2012 Jul;110(2):503-9
pubmed: 22499856
Plant Physiol. 2017 Aug;174(4):2289-2301
pubmed: 28600344
Plant Cell Environ. 2015 Sep;38(9):1775-84
pubmed: 25255708
Plant Physiol. 2014 Dec;166(4):1943-55
pubmed: 25355868
Ann Bot. 2005 Oct;96(5):913-24
pubmed: 16109735
J Exp Bot. 2011 Aug;62(13):4583-93
pubmed: 21659665
Plant Physiol. 2019 Aug;180(4):2049-2060
pubmed: 31123094
J Exp Bot. 2015 Apr;66(8):2347-58
pubmed: 25795737
J Exp Bot. 2019 Oct 15;70(19):5311-5325
pubmed: 31231768
Trends Plant Sci. 2010 Apr;15(4):219-26
pubmed: 20153971
Ann Bot. 2012 Jul;110(2):511-9
pubmed: 22362666
Plant Cell Environ. 2007 May;30(5):580-9
pubmed: 17407536
Planta. 1983 Jul;157(4):350-7
pubmed: 24264269
Funct Plant Biol. 2016 Mar;43(2):114-128
pubmed: 32480446
J Exp Bot. 2019 Oct 15;70(19):5327-5342
pubmed: 31199461
Plant Cell Environ. 2010 May;33(5):740-9
pubmed: 20519019
Ann Bot. 2013 Jul;112(2):429-37
pubmed: 23618897
Ann Bot. 2008 Feb;101(3):319-40
pubmed: 17954472
J Exp Bot. 2011 Jan;62(1):59-68
pubmed: 21118824
Plant Physiol. 2018 Jan;176(1):691-703
pubmed: 29118249
J Exp Bot. 2018 Jun 6;69(13):3279-3292
pubmed: 29471525
J Exp Bot. 2015 Jun;66(11):3151-62
pubmed: 25903914
J Exp Bot. 2003 Sep;54(390):2105-9
pubmed: 12885860
Trends Plant Sci. 2000 Mar;5(3):123-7
pubmed: 10707078
J Exp Bot. 2013 Sep;64(12):3711-21
pubmed: 23861547
Ann Bot. 2004 Sep;94(3):473-7
pubmed: 15277251
Ann Bot. 2018 Nov 3;122(5):711-723
pubmed: 29471488