Physiological integration enhanced the tolerance of Cynodon dactylonto flooding
dc.contributor.author | Li, Z. J. | |
dc.contributor.author | Fan, D. Y. | |
dc.contributor.author | Chen, F. Q. | |
dc.contributor.author | Yuan, Q. Y. | |
dc.contributor.author | Chow, W. S. | |
dc.contributor.author | Xie, Z. Q. | |
dc.date.accessioned | 2015-04-21T05:15:12Z | |
dc.date.available | 2015-04-21T05:15:12Z | |
dc.date.issued | 2015-03 | |
dc.date.updated | 2016-02-24T08:07:03Z | |
dc.description.abstract | Many flooding-tolerant species are clonal plants; however, the effects of physiological integration on plant responses to flooding have received limited attention. We hypothesise that flooding can trigger changes in metabolism of carbohydrates and ROS (reactive oxygen species) in clonal plants, and that physiological integration can ameliorate the adverse effects of stress, subsequently restoring the growth of flooded ramets. In the present study, we conducted a factorial experiment combining flooding to apical ramets and stolon severing (preventing physiological integration) between apical and basal ramets of Cynodon dactylon, which is a stoloniferous perennial grass with considerable flooding tolerance. Flooding-induced responses including decreased root biomass, accumulation of soluble sugar and starch, as well as increased activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX) in apical ramets. Physiological integration relieved growth inhibition, carbohydrate accumulation and induction of antioxidant enzyme activity in stressed ramets, as expected, without any observable cost in unstressed ramets. We speculate that relief of flooding stress in clonal plants may rely on oxidising power and electron acceptors transferred between ramets through physiological integration. | |
dc.description.sponsorship | This workwas financially supported by the Chinese Academy ofSciences (KZCX2-XB2-07), the Australian Research Council(DP1093827) and the National Natural Science Foundation of China (31070356). | en_AU |
dc.identifier.issn | 1435-8603 | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/13290 | |
dc.publisher | Wiley | |
dc.relation | http://purl.org/au-research/grants/arc/DP1093827 | |
dc.rights | © 2014 German Botanical Society and The Royal Botanical Society of the Netherlands | |
dc.source | Plant Biology | |
dc.subject | bermuda grass | |
dc.subject | carbohydrate | |
dc.subject | physiological integration | |
dc.subject | reactive oxygen species scavenging enzymes | |
dc.subject | waterlogging | |
dc.title | Physiological integration enhanced the tolerance of Cynodon dactylonto flooding | |
dc.type | Journal article | |
dcterms.dateAccepted | 2014-09-01 | |
local.bibliographicCitation.issue | 2 | en_AU |
local.bibliographicCitation.lastpage | 465 | en_AU |
local.bibliographicCitation.startpage | 459 | en_AU |
local.contributor.affiliation | Fan, D. Y., Research School of Biology, College of Medicine, Biology and Environment, The Australian National University | en_AU |
local.contributor.affiliation | Chow, W. S., Research School of Biology, College of Medicine, Biology and Environment, The Australian National University | en_AU |
local.contributor.authoremail | fred.chow@anu.edu.au | en_AU |
local.contributor.authoruid | u9609696 | en_AU |
local.identifier.absfor | 060705 - Plant Physiology | |
local.identifier.absseo | 960306 - Effects of Climate Change and Variability on Antarctic and Sub-Antarctic Environments (excl. Social Impacts) | |
local.identifier.ariespublication | a383154xPUB2971 | |
local.identifier.citationvolume | 17 | en_AU |
local.identifier.doi | 10.1111/plb.12254 | en_AU |
local.identifier.essn | 1438-8677 | en_AU |
local.identifier.scopusID | 2-s2.0-84924125139 | |
local.identifier.uidSubmittedBy | u1005913 | en_AU |
local.type.status | Published Version | en_AU |
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