Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance in<i>Pinus taeda</i>seedlings

Faustino, Laura Inés; Moretti, Ana Paula; Graciano, Corina

doi:10.1093/treephys/tpv068

Cited by 24 publications

(14 citation statements)

References 81 publications

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“…Analysis of the levels of gene expression indicate that ammonia and nitrate modulate the expression of NAC TFs more than urea. A study utilizing Pinus taeda revealed that fertilization with ammonium, nitrate, or urea produces different effects on growth and drought tolerance [99]. Results of the current analysis indicate that AtNAC8 and AtNAC91 are the major NAC TFs involved in nitrogen assimilation during plant growth.…”

Section: Nac Tfs Are Expressed In a Spatiotemporal Mannermentioning

confidence: 75%

Genomics, molecular and evolutionary perspective of NAC transcription factors

et al. 2020

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NAC (NAM, ATAF1,2, and CUC2) transcription factors are one of the largest transcription factor families found in the plants and are involved in diverse developmental and signalling events. Despite the availability of comprehensive genomic information from diverse plant species, the basic genomic, biochemical, and evolutionary details of NAC TFs have not been established. Therefore, NAC TFs family proteins from 160 plant species were analyzed in the current study. Study revealed, Brassica napus (410) encodes highest number and Klebsormidium flaccidum (3) encodes the lowest number of TFs. The study further revealed the presence of NAC TF in the Charophyte algae K. flaccidum. On average, the monocot plants encode higher number (141.20) of NAC TFs compared to the eudicots (125.04), gymnosperm (75), and bryophytes (22.66). Furthermore, our analysis revealed that several NAC TFs are membrane bound and contain monopartite, bipartite, and multipartite nuclear localization signals. NAC TFs were also found to encode several novel chimeric proteins and regulate a complex interactome network. In addition to the presence of NAC domain, several NAC proteins were found to encode other functional signature motifs as well. Relative expression analysis of NAC TFs in A. thaliana revealed root tissue treated with urea and ammonia showed higher level of expression and leaf tissues treated with urea showed lower level of expression. The synonymous codon usage is absent in the NAC TFs and it appears that they have evolved from orthologous ancestors and undergone vivid duplications to give rise to paralogous NAC TFs. The presence of novel chimeric NAC TFs are of particular interest and the presence of chimeric NAC domain with other functional signature motifs in the NAC TF might encode novel functional properties in the plants.

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Section: Nac Tfs Are Expressed In a Spatiotemporal Mannermentioning

confidence: 75%

Genomics, molecular and evolutionary perspective of NAC transcription factors

et al. 2020

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“…Analysis of the levels of gene expression indicate that ammonia and nitrate modulate the expression of NAC TFs more than urea. A study utilizing Pinus taeda revealed that fertilization with ammonium, nitrate, or urea produces different effects on growth and drought tolerance 57 . Results of the current analysis indicate that AtNAC8 and AtNAC91 are the major NAC TFs involved in nitrogen assimilation during plant growth.…”

Section: Resultsmentioning

confidence: 99%

Genomics, Molecular and Evolutionary Perspective of NAC Transcription Factors

Mohanta

Yadav

Khan

et al. 2019

Preprint

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AbstractNAC (NAM, ATAF1,2, and CUC2) transcription factors are one of the largest transcription factor families found in plants and are involved in diverse developmental and signalling events. Despite the availability of comprehensive genomic information from diverse plant species, the basic genomic, biochemical, and evolutionary details of NAC TFs have not been established. Therefore, NAC TFs family proteins from 160 plant species were analyzed in the current study. The analysis, among other things, identified the first algal NAC TF in the Charophyte, Klebsormidium flaccidum. Furthermore, our analysis revealed that NAC TFs are membrane bound and contain monopartite, bipartite, and multipartite nuclear localization signals. NAC TFs were also found to encode a novel chimeric protein domain and are part of a complex interactome network. Synonymous codon usage is absent in NAC TFs and it appears that they have evolved from orthologous ancestors and undergone significant duplication events to give rise to paralogous NAC TFs.

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“…In addition, in dry soil, the diffusion of nitrate and ammonium in the soil is slower than the diffusion in soil at field capacity ( Gregory , ). In this context, N fertilization increases the concentration of inorganic forms of N in the soil solution ( Faustino et al, ), acidifies the soil solution and cell wall ,and consequently facilitates the replenishment of N to the depletion zone in the rhizosphere and stimulates root growth ( Bloom et al, ). This indicates that N fertilization plays a pivotal role in alleviating the negative effects of water stress on plant growth and development.…”

Section: Discussionmentioning

confidence: 99%

Role of nitrogen supplementation in alleviating drought‐associated growth and metabolic impairments in Phoebe zhennan seedlings

Tariq

Pan

Olatunji

et al. 2019

J. Plant Nutr. Soil Sci.

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Drought is one of the major environmental stresses altering forest productivity. However, nutrient availability can modulate drought resistance. Phoebe zhennan (gold Phoebe) is a high‐quality timber‐producing but threatened tree species in China, facing serious anthropogenic disturbances and abiotic constraints that restrict its growth and development. However, little attention has been given to designing adaptive strategies for its management by evaluating the possible role of major nutrients, particularly nitrogen (N), on its morphological and physio‐biochemical responses under water stress. To evaluate these responses, a complete randomized design was followed to investigate the effects of two irrigation levels (well‐watered and drought‐stressed conditions) and N fertilization treatments (with and without N). Drought stress significantly affected the growth of seedlings, as indicated by impaired photosynthesis, pigment degradation, disrupted N metabolism, over‐production of reactive oxygen species and enhanced lipid peroxidation. Nitrogen supplementation under drought stress had remarkable positive effects on the growth through physio‐biochemical adjustments as shown by higher level of nitrogenous compounds and up‐regulation of N‐associated metabolic enzymes activities which might be due to N‐mediated improved leaf relative water contents and photosynthetic efficiency. In addition, N application reduced oxidative stress and membrane damage, and maintained a high accumulation of osmolytes. However, in well‐watered seedlings N fertilization significantly improved root biomass and net CO2 assimilation rate suggesting high N‐use efficiency of the seedlings. These findings reveal that drought significantly affects the growth of P. zhennan, while N fertilization plays a crucial role in alleviating water stress damage by improving its drought tolerance potential at low metabolic costs. Therefore, N fertilization could be considered as an effective strategy for the conservation and management of P. zhennan in the face of future climate change.

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Fertilization with urea, ammonium and nitrate produce different effects on growth, hydraulic traits and drought tolerance inPinus taedaseedlings

Cited by 24 publications

References 81 publications

Genomics, molecular and evolutionary perspective of NAC transcription factors

Genomics, molecular and evolutionary perspective of NAC transcription factors

Genomics, Molecular and Evolutionary Perspective of NAC Transcription Factors

Role of nitrogen supplementation in alleviating drought‐associated growth and metabolic impairments in Phoebe zhennan seedlings

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