| Title | Short-term microbial respiration in an arid zone mangrove soil is limited by availability of gallic acid, phosphorus and ammonium |
| Publication Type | Journal Article |
| Year of Publication | 2017 |
| Authors | Davies T.KR, Lovelock C.E, Pettit N.E, Grierson P.F |
| Journal | Soil Biology and Biochemistry |
| Volume | 115 |
| Pagination | 73-81 |
| Date Published | Dec |
| Type of Article | Article |
| ISBN Number | 0038-0717 |
| Accession Number | WOS:000414880000009 |
| Keywords | Agriculture, Avicennia marina, carbon, COLD-STORAGE, Exmouth Gulf, intertidal wetland, level physiological profiles, microbial respiration, nitrogen, Nutrient and carbon limitation, nutrient enrichment, organic-matter, sediments, western-australia |
| Abstract | Microbial activity in soils of oligotrophic, arid zone mangroves is likely strongly limited by carbon (C) and nutrient availability, where even small changes in microbial activity could result in significant shifts in ecosystem functioning. We hypothesised that microbial respiration in arid mangrove ecosystems is primarily limited by supply of labile C sources. We measured short-term respiration responses to addition of glucose, citric acid, gallic acid, phosphate, ammonium (NH4+), nitrate (NO3), urea and glutamic acid to mangrove soils from different tidal positions and soil depths in the laboratory using an adaptation of the MicroResprm procedure (jig CO2-C g soil(-1) hr(-1)). We also measured short-term respiration responses to added glucose, gallic acid, phosphate, ammonium and urea in the field using an infrared gas analyser (g CO2 m(-2) hr(-1)). Both laboratory and field measurements indicated microbial communities were limited by gallic acid, phosphate and ammonium. Respiration rates were enhanced in both the laboratory and the field after addition of gallic acid but not glucose, suggesting adaptations of the arid microbial community to more complex C sources. Addition of phosphate alone and in combination with other substrates enhanced respiration more than ten-fold in the laboratory. In the field, nutrient addition (ammonium and/or phosphate) generally induced greater respiration responses in the surface soils (0 - 1 cm) compared to subsurface (>1 cm), which we attribute to more nutrient-limited autotrophic microbes in the surface soils. Addition of phosphate also induced slightly higher activity in the low intertidal fringing forests compared to high intertidal scrub forests. Our results contrast with studies of more productive tropical mangrove systems and demonstrate the critical role of microorganisms in maintaining organic matter turnover and nutrient supply in a relatively pristine and water-limited environment. (C) 2017 Elsevier Ltd. All rights reserved.
|
| Short Title | Soil Biol. Biochem.Soil Biol. Biochem. |
| Alternate Journal | Soil Biol. Biochem. |
stdClass Object
(
[vid] => 391
[uid] => 1
[title] => Short-term microbial respiration in an arid zone mangrove soil is limited by availability of gallic acid, phosphorus and ammonium
[log] =>
[status] => 1
[comment] => 2
[promote] => 1
[sticky] => 0
[nid] => 391
[type] => biblio
[language] => und
[created] => 1569417073
[changed] => 1569417073
[tnid] => 0
[translate] => 0
[revision_timestamp] => 1569417073
[revision_uid] => 11
[biblio_type] => 102
[biblio_number] =>
[biblio_other_number] =>
[biblio_sort_title] => Shortterm microbial respiration in an arid zone mangrove soil is
[biblio_secondary_title] => Soil Biology and Biochemistry
[biblio_tertiary_title] =>
[biblio_edition] =>
[biblio_publisher] =>
[biblio_place_published] =>
[biblio_year] => 2017
[biblio_volume] => 115
[biblio_pages] => 73-81
[biblio_date] => Dec
[biblio_isbn] => 0038-0717
[biblio_lang] => English
[biblio_abst_e] => Microbial activity in soils of oligotrophic, arid zone mangroves is likely strongly limited by carbon (C) and nutrient availability, where even small changes in microbial activity could result in significant shifts in ecosystem functioning. We hypothesised that microbial respiration in arid mangrove ecosystems is primarily limited by supply of labile C sources. We measured short-term respiration responses to addition of glucose, citric acid, gallic acid, phosphate, ammonium (NH4+), nitrate (NO3), urea and glutamic acid to mangrove soils from different tidal positions and soil depths in the laboratory using an adaptation of the MicroResprm procedure (jig CO2-C g soil(-1) hr(-1)). We also measured short-term respiration responses to added glucose, gallic acid, phosphate, ammonium and urea in the field using an infrared gas analyser (g CO2 m(-2) hr(-1)). Both laboratory and field measurements indicated microbial communities were limited by gallic acid, phosphate and ammonium. Respiration rates were enhanced in both the laboratory and the field after addition of gallic acid but not glucose, suggesting adaptations of the arid microbial community to more complex C sources. Addition of phosphate alone and in combination with other substrates enhanced respiration more than ten-fold in the laboratory. In the field, nutrient addition (ammonium and/or phosphate) generally induced greater respiration responses in the surface soils (0 - 1 cm) compared to subsurface (>1 cm), which we attribute to more nutrient-limited autotrophic microbes in the surface soils. Addition of phosphate also induced slightly higher activity in the low intertidal fringing forests compared to high intertidal scrub forests. Our results contrast with studies of more productive tropical mangrove systems and demonstrate the critical role of microorganisms in maintaining organic matter turnover and nutrient supply in a relatively pristine and water-limited environment. (C) 2017 Elsevier Ltd. All rights reserved.
[biblio_abst_f] =>
[biblio_full_text] => 0
[biblio_url] =>
[biblio_issue] =>
[biblio_type_of_work] => Article
[biblio_accession_number] => WOS:000414880000009
[biblio_call_number] =>
[biblio_notes] => ISI Document Delivery No.: FM3BT
Times Cited: 0
Cited Reference Count: 68
Davies, Tegan K. R. Lovelock, Catherine E. Pettit, Neil E. Grierson, Pauline F.
Pettit, Neil/0000-0001-6126-8914
Arc [dp1096749, dp140104467]
Thanks to Yoshi Sawada for training in the MicroRespTM method and lending equipment. Also thanks to Michelle Sexton for assisting with laboratory analyses. The CSIRO Coastal Carbon Biogeochemistry Cluster and ARC Discovery Project Grants DP1096749 and DP140104467 provided support for fieldwork. We would like to thank Denver and Jennifer Blake at Giralia Pastoral Station and the Dept Intent of Parks and Wildlife (DPaW) for access to the field site. Lastly, thanks to two anonymous reviewers who made a number of insightful suggestions that have improved the manuscript.
11
Pergamon-elsevier science ltd
Oxford
[biblio_custom1] =>
[biblio_custom2] =>
[biblio_custom3] =>
[biblio_custom4] =>
[biblio_custom5] =>
[biblio_custom6] =>
[biblio_custom7] =>
[biblio_research_notes] =>
[biblio_number_of_volumes] =>
[biblio_short_title] => Soil Biol. Biochem.Soil Biol. Biochem.
[biblio_alternate_title] => Soil Biol. Biochem.
[biblio_original_publication] =>
[biblio_reprint_edition] =>
[biblio_translated_title] =>
[biblio_section] =>
[biblio_citekey] => 391
[biblio_coins] =>
[biblio_doi] =>
[biblio_issn] =>
[biblio_auth_address] => [Davies, Tegan K. R.; Pettit, Neil E.; Grierson, Pauline F.] Univ Western Australia, Sch Biol Sci, Ecosyst Res Grp, 35 Stirling Highway, Crawley, WA 6009, Australia. [Davies, Tegan K. R.; Pettit, Neil E.; Grierson, Pauline F.] Univ Western Australia, Sch Biol Sci, West Australian Biogeochem Ctr, 35 Stirling Highway, Crawley, WA 6009, Australia. [Lovelock, Catherine E.] Univ Queensland, Sch Biol Sci, St Lucia, Qld 4072, Australia. [Pettit, Neil E.] Univ Western Australia, Ctr Excellence Nat Resource Management, Albany, WA 6330, Australia.
Davies, TKR (reprint author), Univ Western Australia, Sch Biol Sci, Ecosyst Res Grp, 35 Stirling Highway, Crawley, WA 6009, Australia.; Davies, TKR (reprint author), Univ Western Australia, Sch Biol Sci, West Australian Biogeochem Ctr, 35 Stirling Highway, Crawley, WA 6009, Australia.
tegan.davies@uwa.edu.au
[biblio_remote_db_name] =>
[biblio_remote_db_provider] =>
[biblio_label] =>
[biblio_access_date] =>
[biblio_refereed] =>
[biblio_md5] => 90c8b05b78f87bbe8d7d001f4ce42b32
[biblio_formats] => Array
(
[biblio_abst_e] => full_html
[biblio_abst_f] => full_html
[biblio_notes] => full_html
[biblio_research_notes] => full_html
[biblio_custom1] => full_html
[biblio_custom2] => full_html
[biblio_custom3] => full_html
[biblio_custom4] => full_html
[biblio_custom5] => full_html
[biblio_custom6] => full_html
[biblio_custom7] => full_html
[biblio_coins] => full_html
[biblio_auth_address] => full_html
)
[biblio_type_name] => Journal Article
[biblio_contributors] => Array
(
[0] => Array
(
[nid] => 391
[vid] => 391
[cid] => 732
[auth_type] => 1
[auth_category] => 1
[rank] => 0
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Davies, T. K. R.
[lastname] => Davies
[firstname] => T.
[prefix] =>
[suffix] =>
[initials] => K. R.
[affiliation] =>
[literal] => 0
[md5] => e3bb46daed5170e238cd4f506a05dceb
)
[1] => Array
(
[nid] => 391
[vid] => 391
[cid] => 733
[auth_type] => 1
[auth_category] => 1
[rank] => 1
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Lovelock, C. E.
[lastname] => Lovelock
[firstname] => C.
[prefix] =>
[suffix] =>
[initials] => E.
[affiliation] =>
[literal] => 0
[md5] => ad2ea5b58a67004c993aa0a49254e51f
)
[2] => Array
(
[nid] => 391
[vid] => 391
[cid] => 734
[auth_type] => 1
[auth_category] => 1
[rank] => 2
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Pettit, N. E.
[lastname] => Pettit
[firstname] => N.
[prefix] =>
[suffix] =>
[initials] => E.
[affiliation] =>
[literal] => 0
[md5] => 15165aec83cf6f12f412d0e812f93cc3
)
[3] => Array
(
[nid] => 391
[vid] => 391
[cid] => 735
[auth_type] => 1
[auth_category] => 1
[rank] => 3
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Grierson, P. F.
[lastname] => Grierson
[firstname] => P.
[prefix] =>
[suffix] =>
[initials] => F.
[affiliation] =>
[literal] => 0
[md5] => 98b6fedf8eddf295bb42a181b5ac5dff
)
)
[biblio_keywords] => Array
(
[421] => Agriculture
[1034] => Avicennia marina
[135] => carbon
[667] => COLD-STORAGE
[1033] => Exmouth Gulf
[1036] => intertidal wetland
[459] => level physiological profiles
[275] => microbial respiration
[68] => nitrogen
[1032] => Nutrient and carbon limitation
[1035] => nutrient enrichment
[51] => organic-matter
[866] => sediments
[59] => western-australia
)
[body] => Array
(
)
[rdf_mapping] => Array
(
[rdftype] => Array
(
[0] => sioc:Item
[1] => foaf:Document
)
[title] => Array
(
[predicates] => Array
(
[0] => dc:title
)
)
[created] => Array
(
[predicates] => Array
(
[0] => dc:date
[1] => dc:created
)
[datatype] => xsd:dateTime
[callback] => date_iso8601
)
[changed] => Array
(
[predicates] => Array
(
[0] => dc:modified
)
[datatype] => xsd:dateTime
[callback] => date_iso8601
)
[body] => Array
(
[predicates] => Array
(
[0] => content:encoded
)
)
[uid] => Array
(
[predicates] => Array
(
[0] => sioc:has_creator
)
[type] => rel
)
[name] => Array
(
[predicates] => Array
(
[0] => foaf:name
)
)
[comment_count] => Array
(
[predicates] => Array
(
[0] => sioc:num_replies
)
[datatype] => xsd:integer
)
[last_activity] => Array
(
[predicates] => Array
(
[0] => sioc:last_activity_date
)
[datatype] => xsd:dateTime
[callback] => date_iso8601
)
)
[name] => admin
[picture] => 0
[data] => a:14:{s:7:"overlay";i:0;s:16:"ckeditor_default";s:1:"t";s:20:"ckeditor_show_toggle";s:1:"t";s:14:"ckeditor_width";s:4:"100%";s:13:"ckeditor_lang";s:2:"en";s:18:"ckeditor_auto_lang";s:1:"t";s:19:"biblio_show_profile";i:0;s:19:"biblio_my_pubs_menu";i:0;s:21:"biblio_contributor_id";s:1:"0";s:22:"biblio_id_change_count";s:1:"0";s:17:"biblio_user_style";s:6:"system";s:18:"biblio_baseopenurl";s:0:"";s:18:"biblio_openurl_sid";s:0:"";s:19:"biblio_crossref_pid";s:0:"";}
[entity_view_prepared] => 1
)