Effect of aluminum toxicity and phosphorus deficiency on the growth and photosynthesis of oil tea (Camellia oleifera Abel.) seedlings in acidic red soils

He, Genhe; Zhang, Jingfei; Hu, Xuehua; Wu, Jichun

doi:10.1007/s11738-010-0659-7

Cited by 40 publications

(30 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Under P-deficient conditions, the water-conducting capacity of roots declines, due to the reduced activity of water channel proteins (aquaporins), which ultimately reduces cell water contents [9,23,45]. The leaf chlorophyll content in both cultivars decreased under low P supply, which agrees with the findings from previous studies [46], and may be due to its limited biosynthesis or enhanced degradation through increased activity of the chlorophyllase enzyme [47]. It is important to note that the salinity treatment did not affect chlorophyll content in Janz, again confirming its greater salt tolerance.…”

Section: Relative Effect Of P and Salt On Growth And Physiologysupporting

confidence: 87%

Salinity and Low Phosphorus Differentially Affect Shoot and Root Traits in Two Wheat Cultivars with Contrasting Tolerance to Salt

et al. 2018

View full text Add to dashboard Cite

Soil salinity and phosphorus (P) deficiency both have adverse effects on crop growth and productivity, but the interaction of soil salinity and P deficiency is not well known. Two P-inefficient wheat cultivars, Janz (salinity-tolerant) and Jandaroi (salinity-sensitive), grown in soil in rhizoboxes, were treated with either 100 µM P (control), 100 mM NaCl (saline stress), 10 µM P (low P stress), or both NaCl and low P (combined stress), from 10 days after sowing (DAS) until harvest at 40 DAS. Significant reductions in leaf area, shoot and root biomass, tissue water and chlorophyll contents, gas exchange, and K+ and P acquisition at harvest were observed in the three treatments. The reduction was greater for low P supply than for salinity alone, but their interaction was not additive. The detrimental effects on root growth became apparent 10 days earlier in Jandaroi compared to Janz. Root length, root number, root length densities, and root number densities were higher in the upper 10 cm soil layer than in the lower layers for both cultivars. This study demonstrated that 10 µM P is more detrimental than 100 mM NaCl for shoot and root growth of both wheat cultivars irrespective of their difference in salinity tolerance.

show abstract

Section: Relative Effect Of P and Salt On Growth And Physiologysupporting

confidence: 87%

Salinity and Low Phosphorus Differentially Affect Shoot and Root Traits in Two Wheat Cultivars with Contrasting Tolerance to Salt

et al. 2018

View full text Add to dashboard Cite

show abstract

“…P-induced alleviation of Al toxicity have been reported in many plant species such as buckwheat (Zheng et al 2005), Citrus grandis (Jiang et al 2009), Lespedeza bicolor (Sun et al 2008), maize (Gaume et al 2001), oil tea (He et al 2010), rice (Nakagawa et al 2003), sorghum (Tan and Keltjens 1990), soybean (Liao et al 2006) and wheat (Iqbal 2014a, b). For example, Gaume et al (2001) found that Al toxicity in maize was alleviated with increasing P concentrations in roots.…”

Section: Introductionmentioning

confidence: 99%

Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat

et al. 2015

View full text Add to dashboard Cite

Aims Both aluminum (Al) toxicity and phosphorus (P) deficiency are limiting factors of crop production on acid soils. Although Al-P interaction has been extensively studied, the results are controversial. The aim of this study is to investigate the effect of in planta P on Alinduced inhibition of root elongation in wheat (Triticum aestivum L.). Methods Roots of wheat (cv. Atlas 66) with different internal P concentrations were prepared by two methods; split-root and re-rooting in a hydroponic solution using three different P levels (0, 25 and 250 μM) to avoid direct precipitation of Al-P in the solution. Al toxicity was evaluated by root elongation inhibition and callose induction. The Al and P concentrations in the root tips were also compared among different treatments.Results Both split-root and re-rooting methods generated roots with different P concentrations in the tips when exposed to different P levels. Lower P in the root tips resulted in less Al-induced inhibition of the root elongation, less callose content and less Al accumulation, while higher root P caused a higher Al-induced inhibition of the root elongation, increased callose content and Al accumulation in the root tips. Furthermore, Al in the root cell sap was not altered by different P concentrations, but Al in the root cell wall was increased with increasing in planta P concentrations. Conclusions Al toxicity in wheat is associated with P in the root cell wall; lower root P enhanced Al tolerance, while higher root P aggravated Al toxicity in wheat.

show abstract

“…Becauseflowers and fruits of C. oleifera grow throughout the year, and mature at the same time, fertilizers must be added to achieve high yields, especially of fruit and oil [28]. It is reported that P, N, K, Ca and Mg are the primary soil nutrientslimiting C. oleifera yield [29]. In conventional planting, chemical fertilizers are mainly used.…”

Section: Discussionmentioning

confidence: 99%

Effects of Biogas Slurry on Fruit Economic Traits and Soil Nutrients of Camellia oleifera Abel

Shi

et al. 2018

Preprint

View full text Add to dashboard Cite

Soil nutrients play a principal role in Camellia oleifera Abel (oil-seed camellia) production. Camellia oleifera absorbs nutrients from surrounding soils and its production is highly influenced by nutrients or fertilization. In this study, we investigated the effects of biogas slurry applications on soil nutrients and economic traits of C. oleifera fruits. Five different amounts of fertilizing biogas slurry (0, 10, 20, 30, or 40 kg/plant/year from three applications per year) were applied to C. oleifera plants in 2015 and 2016. Rhizosphere soil nutrients and C. oleifera fruit economic traits (yield, seed rate, and oil yield)were measured. Fertilization with biogas slurryincreasedsoil organic matter, available nitrogen (N), phosphorus (P), and potassium (K) in both 2015 and 2016. Increases in soil available N, P, and Kwere largest at the highest slurry application rate and second largest at the second highest application rate. Fruit economic traits were maximized at the two highest application rates. Oil yield was correlated withsoil available P in 2015 and 2016, and soil organic matter in 2015. Fertilization with biogas slurry decreased saturated fatty acid content in fruit but had no effect on unsaturated fatty acid content. In conclusion, fertilization with biogas slurry increases rhizosphere soil nutrients and fruit economic traits of C. oleifera with the rates of at least 30 kg/plant/year having the most positive effects.

show abstract

Effect of aluminum toxicity and phosphorus deficiency on the growth and photosynthesis of oil tea (Camellia oleifera Abel.) seedlings in acidic red soils

Cited by 40 publications

References 38 publications

Salinity and Low Phosphorus Differentially Affect Shoot and Root Traits in Two Wheat Cultivars with Contrasting Tolerance to Salt

Salinity and Low Phosphorus Differentially Affect Shoot and Root Traits in Two Wheat Cultivars with Contrasting Tolerance to Salt

Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat

Effects of Biogas Slurry on Fruit Economic Traits and Soil Nutrients of Camellia oleifera Abel

Contact Info

Product

Resources

About