The effects of different nitrogen sources on camptothecin content and related gene expression in Camptotheca acuminata seedlings

Xiao-de, Wang; Bian, Sainan; Chang, Pi-Fang Linda; Wang, Ninghang; Xuan, Lingjuan; Zhang, Mingru; Dong, Bin; Zhang, Chao; Wu, Jiasheng; Ying, Yibin; X, Lin; Shen, Yamei

doi:10.1007/s11676-019-01035-3

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…N fertilization increased root and stem N, P, and K content, leaf N content of P. bournei seedlings, and increased root, stem, leaves, and total N, P, and K accumulation, showing that N fertilizer could promote N, P, and K absorption of P. bournei seedlings, and was beneficial to N, P, and K accumulation. This result was consistent with the results such as wheat, cotton, and Camptotheca acuminate [15,36,37]. With the increase of N application rate, root and total N, P, and K accumulation first increased and then decreased, meaning it was possible that excessive N fertilizer would poison the roots of P. bournei seedlings and reduce the ability to absorb nutrients, resulting in N, P, K accumulation decrease [38,39].…”

Section: Effect Of N Fertilizer On Nutrients Accumulation and Allocation In P Bournei Seedlingssupporting

confidence: 89%

Fertilization Regulates Accumulation and Allocation of Biomass and Nutrients in Phoebe bournei Seedlings

Yang

Chen

et al. 2021

Agriculture

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To study the effect of N-P-K fertilization on Phoebe bournei seedlings’ organs dry biomass, and nutrients accumulation and allocation, and to further uncover how nutrients regulating dry biomass formation through fertilization, we utilized the “3414” experiment design. The results showed that N, P, and K fertilizer promoted dry biomass accumulation, and root, stem, and total plant N, P, and K content and accumulation in seedlings. The dry biomass accumulations of root, stem, and total plant increased first and then decreased with the increase of N, P, and K application rates, which was basically consistent with the change in dry biomass allocations and N, P, and K contents, accumulations, and allocations. Root N accumulation, root P accumulation, and total plant K accumulation were the key indicators for seedlings growth. N fertilizer had the greatest effect on total dry biomass and root N accumulation, was the most important fertilizer for the growth of Phoebe bournei seedlings, can regulate the growth of root and leaves, is beneficial to root growth at medium-low N fertilizer levels (N: 0.266–0.532 g·plant−1), and leaves growth at high N fertilizer level (N: 0.798 g·plant−1). P fertilizer rate can regulate the seedling stem growth, reaching the maximum at the medium level P application (P2O5: 0.1332 g·plant−1). K fertilizer had the greatest effect on the root P accumulation and total K accumulation, promoting K transport from leaves to root, improved root and stem growth, and inhibited leaves growth. The N, P, and K fertilizer three-factor application can better promote nutrient uptake than double-factor and single-factor fertilization, with highest dry biomass accumulation at the medium level of N, P, K fertilizer (N: 0.532 g·plant−1; P2O5: 0.1232 g·plant−1; K2O: 0.356 g·plant−1). In conclusion, N, P, and K fertilization promoted the N, P, and K absorption, increased root, stem, and leaves N, P, and K content and accumulation, and promoted the seedling dry biomass accumulation, but reversed under excessive application of N, P, and K fertilizer; and N fertilizer was beneficial to root and leaves growth, P fertilizer to stem growth, and K fertilizer to material transfer, which provided a theoretical basis for robust Phoebe bournei seedling cultivation.

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Section: Effect Of N Fertilizer On Nutrients Accumulation and Allocation In P Bournei Seedlingssupporting

confidence: 89%

Fertilization Regulates Accumulation and Allocation of Biomass and Nutrients in Phoebe bournei Seedlings

Yang

Chen

et al. 2021

Agriculture

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“…Following the application of K, the proportion of N and biomass allocation to sapling roots increased. When the efficacy of N and P in the soil increased, any additional N and P were allocated to the roots, thereby enhancing the absorption of other soil resources to meet the growth and development demands of saplings [56,[58][59][60].…”

Section: Effects Of Fertilization On the Biomass And Nutrient Status ...mentioning

confidence: 99%

The Application of Nitrogen, Phosphorus, and Potassium Regulate the Growth and Morphological Development of Torreya grandis (Taxaceae) Saplings

Ma,

Huang,

Huang

et al. 2023

Horticulturae

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Torreya grandis Fort. ex Lindl. cv. “Merrillii” is an important woody oil crop, and the development of plantations relies on the cultivation of high-quality saplings. For this study, 6-year-old grafted T. grandis saplings, which will soon be planted on the mountain, were selected to investigate the regulatory effects of nitrogen (N), phosphorus (P), and potassium (K) on their growth and morphology. To determine the optimal dosage and ratio of N–P–K fertilizer for sapling cultivation, we employed a three-factor four-level L16 (43) orthogonal experiment design. The experiment included a total of 17 treatments—a control group where no fertilizer was applied and 16 treatments with varying levels of NPK supply. We conducted a one-season experiment under a prescribed fertilizer regime and measured root collar diameters and sapling heights, the root, shoot, leaf biomass, total biomass, and the nutritional status of plant organs (root, shoot, leaf). From these measurements, we calculated the root–shoot ratio (RS) and seedling quality index (QI). The application of N–P–K fertilizer exhibited significant benefits for T. grandis sapling cultivation, promoted their growth and biomass accumulation and altered the nutrient allocation patterns in organs. Ultimately, we determined the ideal N–P–K ratio for T. grandis growth to be 1:0.46:0.75, with a fertilizer application of 1.38 g·sapling−1 of N, 0.64 g·sapling−1 of P (P2O5), and 1.04 g·sapling−1 of K (K2O).

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Research progress on the biosynthesis and metabolic engineering of the anti-cancer drug camptothecin in Camptotheca acuminate

Fan

Lin

Ruan

et al. 2022

Industrial Crops and Products

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The effects of different nitrogen sources on camptothecin content and related gene expression in Camptotheca acuminata seedlings

Cited by 4 publications

References 31 publications

Fertilization Regulates Accumulation and Allocation of Biomass and Nutrients in Phoebe bournei Seedlings

Fertilization Regulates Accumulation and Allocation of Biomass and Nutrients in Phoebe bournei Seedlings

The Application of Nitrogen, Phosphorus, and Potassium Regulate the Growth and Morphological Development of Torreya grandis (Taxaceae) Saplings

Research progress on the biosynthesis and metabolic engineering of the anti-cancer drug camptothecin in Camptotheca acuminate

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