دورية أكاديمية
Flooding effects on soil phenol oxidase activity and phenol release during rice straw decomposition
| العنوان: | Flooding effects on soil phenol oxidase activity and phenol release during rice straw decomposition |
|---|---|
| المؤلفون: | Liu, Shurong, Hu, Ronggui, Zhao, Jinsong, Brüggemann, Nicolas, Bol, Roland, Cai, Gaochao, Lin, Shan, Shaaban, Muhammad |
| المصدر: | Journal of plant nutrition and soil science 177(4), 541 - 547 (2014). doi:10.1002/jpln.201300356 |
| بيانات النشر: | Wiley-VCH |
| سنة النشر: | 2014 |
| المجموعة: | Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
| مصطلحات موضوعية: | info:eu-repo/classification/ddc/570 |
| جغرافية الموضوع: | DE |
| الوصف: | Phenol oxidase (Pox) plays a key role in soil C cycle and its presence may affect soil C mineralization during crop residue decomposition. To examine soil dynamics and relationships between Pox, phenols, Fe2+, and C mineralization, we designed a 53-d laboratory experiment conducted with and without rice straw addition and under non-flooded and flooded conditions. The results demonstrate that rice straw can indeed decompose faster under flooded conditions. The addition of rice straw significantly increased soil Pox activity (up to 15-fold), but only under flooded conditions. Rice straw application increased alkali extractable phenol (AEP) concentration by 129% at day 4. However, flooded conditions reduced soil AEP by 61% and 49% at day 53 with and without rice straw application, respectively. Phenol oxidase activity was positively correlated with dissolved organic C and Fe2+, while negatively related to AEP, which itself was positively correlated with C mineralization (i.e., CO2 emission rates). Also, all relationships between soil Pox, AEP, Fe2+, and C were stronger under flooded conditions. We therefore conclude that flooded conditions in paddy soil may promote straw decomposition as a result of the stimulation of Pox activity and phenol decomposition. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/issn/1436-8730; info:eu-repo/semantics/altIdentifier/wos/WOS:000339484300007; info:eu-repo/semantics/altIdentifier/issn/1522-2624; info:eu-repo/semantics/altIdentifier/issn/0044-3263; https://juser.fz-juelich.de/record/155359Test; https://juser.fz-juelich.de/search?p=id:%22FZJ-2014-04528%22Test |
| الإتاحة: | https://doi.org/10.1002/jpln.201300356Test https://juser.fz-juelich.de/record/155359Test https://juser.fz-juelich.de/search?p=id:%22FZJ-2014-04528%22Test |
| حقوق: | info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.8B6C91BA |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |