Is the inherent potential of maize roots efficient for soil phosphorus acquisition?
Sustainable agriculture requires improved phosphorus (P) management to reduce the overreliance on P fertilization. Despite intensive research of root adaptive mechanisms for improving P acquisition, the inherent potential of roots for efficient P acquisition remains unfulfilled, especially in intens...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2014-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090287&type=printable |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849720296312930304 |
|---|---|
| author | Yan Deng Keru Chen Wan Teng Ai Zhan Yiping Tong Gu Feng Zhenling Cui Fusuo Zhang Xinping Chen |
| author_facet | Yan Deng Keru Chen Wan Teng Ai Zhan Yiping Tong Gu Feng Zhenling Cui Fusuo Zhang Xinping Chen |
| author_sort | Yan Deng |
| collection | DOAJ |
| description | Sustainable agriculture requires improved phosphorus (P) management to reduce the overreliance on P fertilization. Despite intensive research of root adaptive mechanisms for improving P acquisition, the inherent potential of roots for efficient P acquisition remains unfulfilled, especially in intensive agriculture, while current P management generally focuses on agronomic and environmental concerns. Here, we investigated how levels of soil P affect the inherent potential of maize (Zea mays L.) roots to obtain P from soil. Responses of root morphology, arbuscular mycorrhizal colonization, and phosphate transporters were characterized and related to agronomic traits in pot and field experiments with soil P supply from deficiency to excess. Critical soil Olsen-P level for maize growth approximated 3.2 mg kg(-1), and the threshold indicating a significant environmental risk was about 15 mg kg(-1), which represented the lower and upper levels of soil P recommended in current P management. However, most root adaptations involved with P acquisition were triggered when soil Olsen-P was below 10 mg kg(-1), indicating a threshold for maximum root inherent potential. Therefore, to maintain efficient inherent potential of roots for P acquisition, we suggest that the target upper level of soil P in intensive agriculture should be reduced from the environmental risk threshold to the point maximizing the inherent potential of roots. |
| format | Article |
| id | doaj-art-00d1f4db94c349a69aeff86ce9ad1ae9 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-00d1f4db94c349a69aeff86ce9ad1ae92025-08-20T03:11:58ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0193e9028710.1371/journal.pone.0090287Is the inherent potential of maize roots efficient for soil phosphorus acquisition?Yan DengKeru ChenWan TengAi ZhanYiping TongGu FengZhenling CuiFusuo ZhangXinping ChenSustainable agriculture requires improved phosphorus (P) management to reduce the overreliance on P fertilization. Despite intensive research of root adaptive mechanisms for improving P acquisition, the inherent potential of roots for efficient P acquisition remains unfulfilled, especially in intensive agriculture, while current P management generally focuses on agronomic and environmental concerns. Here, we investigated how levels of soil P affect the inherent potential of maize (Zea mays L.) roots to obtain P from soil. Responses of root morphology, arbuscular mycorrhizal colonization, and phosphate transporters were characterized and related to agronomic traits in pot and field experiments with soil P supply from deficiency to excess. Critical soil Olsen-P level for maize growth approximated 3.2 mg kg(-1), and the threshold indicating a significant environmental risk was about 15 mg kg(-1), which represented the lower and upper levels of soil P recommended in current P management. However, most root adaptations involved with P acquisition were triggered when soil Olsen-P was below 10 mg kg(-1), indicating a threshold for maximum root inherent potential. Therefore, to maintain efficient inherent potential of roots for P acquisition, we suggest that the target upper level of soil P in intensive agriculture should be reduced from the environmental risk threshold to the point maximizing the inherent potential of roots.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090287&type=printable |
| spellingShingle | Yan Deng Keru Chen Wan Teng Ai Zhan Yiping Tong Gu Feng Zhenling Cui Fusuo Zhang Xinping Chen Is the inherent potential of maize roots efficient for soil phosphorus acquisition? PLoS ONE |
| title | Is the inherent potential of maize roots efficient for soil phosphorus acquisition? |
| title_full | Is the inherent potential of maize roots efficient for soil phosphorus acquisition? |
| title_fullStr | Is the inherent potential of maize roots efficient for soil phosphorus acquisition? |
| title_full_unstemmed | Is the inherent potential of maize roots efficient for soil phosphorus acquisition? |
| title_short | Is the inherent potential of maize roots efficient for soil phosphorus acquisition? |
| title_sort | is the inherent potential of maize roots efficient for soil phosphorus acquisition |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090287&type=printable |
| work_keys_str_mv | AT yandeng istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT keruchen istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT wanteng istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT aizhan istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT yipingtong istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT gufeng istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT zhenlingcui istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT fusuozhang istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition AT xinpingchen istheinherentpotentialofmaizerootsefficientforsoilphosphorusacquisition |