[Effects of Phosphorus Sufficiency and Deficiency on Cadmium Uptake and Transportation by Rice].

التفاصيل البيبلوغرافية
العنوان:	[Effects of Phosphorus Sufficiency and Deficiency on Cadmium Uptake and Transportation by Rice].
المؤلفون:	Tan WT; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China., Huo Y; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China., Zhou H; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China., Qiu YY; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China., Zeng P; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China., Gu JF; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China., Liao BH; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China.
المصدر:	Huan jing ke xue= Huanjing kexue [Huan Jing Ke Xue] 2022 Jun 08; Vol. 43 (6), pp. 3308-3314.
نوع المنشور:	Journal Article
اللغة:	Chinese
بيانات الدورية:	Publisher: Ke xue zhu ban she Country of Publication: China NLM ID: 8405344 Publication Model: Print Cited Medium: Print ISSN: 0250-3301 (Print) Linking ISSN: 02503301 NLM ISO Abbreviation: Huan Jing Ke Xue Subsets: MEDLINE
أسماء مطبوعة:	Original Publication: Beijing : Ke xue zhu ban she,
مواضيع طبية MeSH:	Oryza* , Soil Pollutants*/analysis, Cadmium/analysis ; Chlorophyll A ; Phosphorus/pharmacology
مستخلص:	Phosphorus (P) is an essential nutrient element for crop growth. The effects of P surplus or deficit on Cd absorption and transport in rice in Cd-polluted farmland is not clear. The effects of P deficiency and P sufficiency on Cd uptake, transport, and accumulation in rice under Cd stress were investigated by applying different levels of phosphorus (NaH 2 PO 4 ) in a hydroponic experiment. The results showed that:① with the increase in ρ (P) (1.5-48.0 mg·L ^-1 ), the biomass in all parts of the rice plants had no obvious change, and the contents of photosynthetic pigment (chlorophyll a, chlorophyll b, and carotenoid) firstly ascended and then descended; high concentrations of P inhibited the synthesis of photosynthetic pigments. ② Under Cd stress, when the P was deficient (1.5-6.0 mg·L ^-1 ) or sufficient (12.0-48.0 mg·L ^-1 ), the Cd content in different parts of the rice increased with the increase in P addition level, and the maximum increase in Cd content in brown rice was 132.1% and 191.2%, respectively. ③ The P/Cd of brown rice showed a piecewise decreasing rule under P deficiency and P sufficiency, and the Cd content in brown rice was significantly negatively correlated with P/Cd ( P <0.01). These results indicated that elevating phosphorus concentration when rice was under both the conditions of P deficiency and P sufficiency could promote the uptake and transport of Cd by rice roots under Cd stress, thus increasing the accumulation of Cd in aboveground parts and the risk of excessive Cd in rice.
فهرسة مساهمة:	Keywords: accumulation; cadmium (Cd); phosphorus (P); rice; translocation
المشرفين على المادة:	0 (Soil Pollutants) 00BH33GNGH (Cadmium) 27YLU75U4W (Phosphorus) YF5Q9EJC8Y (Chlorophyll A)
تواريخ الأحداث:	Date Created: 20220610 Date Completed: 20220613 Latest Revision: 20220613
رمز التحديث:	20240628
DOI:	10.13227/j.hjkx.202110118
PMID:	35686801
قاعدة البيانات:	MEDLINE

الوصف
تدمد:	0250-3301
DOI:	10.13227/j.hjkx.202110118