Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil

Abstract: Rock phosphate is the main constituent of soil in lower Himalayan region of Pakistan but less accessible to plants. Although a lot of work has been done on the role of phosphate solubilizing bacteria for phosphorus availability from insoluble tricalcium phosphate (TCP), no significant succ...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Rehman,Palwasha, Nazir,Rashid, Naqvi,Tatheer Alam, Pervez,Arshid, Irshad,Usman
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Tricalcium P P mining zone Phosphatase Bacteria Nematodes Predation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000401173
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162018000401173
record_format	dspace
spelling	oai:scielo:S0718-951620180004011732019-02-05Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soilRehman,PalwashaNazir,RashidNaqvi,Tatheer AlamPervez,ArshidIrshad,Usman Tricalcium P P mining zone Phosphatase Bacteria Nematodes Predation Abstract: Rock phosphate is the main constituent of soil in lower Himalayan region of Pakistan but less accessible to plants. Although a lot of work has been done on the role of phosphate solubilizing bacteria for phosphorus availability from insoluble tricalcium phosphate (TCP), no significant success has yet been achieved at larger scale. The survival and function of introduced P solubilizing bacteria is directly influenced by their grazers present in soil. We hypothesized that the interactions between P solubilizing bacteria and grazer nematodes are able to improve P liberation from both TCP and bacterial biomass turnover. The hypothesis was tested by growing Pinus roxburghii seedlings in sand medium with or without TCP as a P source. The plants were grown alone or with a TCP solubilizing bacteria and bacterial-feeder nematodes. The test bacteria and the nematodes were isolated originally from pine rhizosphere of P mining zone located in lower Himalaya region of Pakistan. The grazing of bacteria by nematodes enhanced the P availability in the medium. Although bacteria were abundant in rhizosphere without nematodes they remained less efficient in P liberation compared to that measured in the presence of nematodes. Our data also showed that acidification was not the only reason of P availability from TCP. Another mechanism was prominent in liberation of the bacterial locked organic phosphorus via phosphatase secretion as a result of nematodes predation. Our results, thus, open a new window towards the success and efficiency of bacterial-based biofertilizer, which mostly fail in the soil.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.4 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000401173en10.4067/S0718-95162018005003203
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Tricalcium P P mining zone Phosphatase Bacteria Nematodes Predation
spellingShingle	Tricalcium P P mining zone Phosphatase Bacteria Nematodes Predation Rehman,Palwasha Nazir,Rashid Naqvi,Tatheer Alam Pervez,Arshid Irshad,Usman Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil
description	Abstract: Rock phosphate is the main constituent of soil in lower Himalayan region of Pakistan but less accessible to plants. Although a lot of work has been done on the role of phosphate solubilizing bacteria for phosphorus availability from insoluble tricalcium phosphate (TCP), no significant success has yet been achieved at larger scale. The survival and function of introduced P solubilizing bacteria is directly influenced by their grazers present in soil. We hypothesized that the interactions between P solubilizing bacteria and grazer nematodes are able to improve P liberation from both TCP and bacterial biomass turnover. The hypothesis was tested by growing Pinus roxburghii seedlings in sand medium with or without TCP as a P source. The plants were grown alone or with a TCP solubilizing bacteria and bacterial-feeder nematodes. The test bacteria and the nematodes were isolated originally from pine rhizosphere of P mining zone located in lower Himalaya region of Pakistan. The grazing of bacteria by nematodes enhanced the P availability in the medium. Although bacteria were abundant in rhizosphere without nematodes they remained less efficient in P liberation compared to that measured in the presence of nematodes. Our data also showed that acidification was not the only reason of P availability from TCP. Another mechanism was prominent in liberation of the bacterial locked organic phosphorus via phosphatase secretion as a result of nematodes predation. Our results, thus, open a new window towards the success and efficiency of bacterial-based biofertilizer, which mostly fail in the soil.
author	Rehman,Palwasha Nazir,Rashid Naqvi,Tatheer Alam Pervez,Arshid Irshad,Usman
author_facet	Rehman,Palwasha Nazir,Rashid Naqvi,Tatheer Alam Pervez,Arshid Irshad,Usman
author_sort	Rehman,Palwasha
title	Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil
title_short	Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil
title_full	Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil
title_fullStr	Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil
title_full_unstemmed	Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil
title_sort	bacterial feeder nematodes: facilitator or competitor for plant phosphorus in soil
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000401173
work_keys_str_mv	AT rehmanpalwasha bacterialfeedernematodesfacilitatororcompetitorforplantphosphorusinsoil AT nazirrashid bacterialfeedernematodesfacilitatororcompetitorforplantphosphorusinsoil AT naqvitatheeralam bacterialfeedernematodesfacilitatororcompetitorforplantphosphorusinsoil AT pervezarshid bacterialfeedernematodesfacilitatororcompetitorforplantphosphorusinsoil AT irshadusman bacterialfeedernematodesfacilitatororcompetitorforplantphosphorusinsoil
_version_	1714206590617255936

Bacterial feeder Nematodes: Facilitator or competitor for Plant Phosphorus in soil

Ejemplares similares