Nitrogen limits zinc‐mediated stimulation of tillering in rice by modifying phytohormone balance under low‐temperature stress

Liu, Zhilei; Su, Jinkai; Luo, Xiangyu; Meng, Jingrou; Zhang, Haonan; Li, Pengfei; Sun, Yuanyuan; Song, Jiamei; Peng, Xianlong; Yu, Cailian

doi:10.1002/fes3.359

Cited by 4 publications

(4 citation statements)

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“…In maize, proteomic analysis of roots subjected to a combination of drought and heat stresses identified proteins involved in cell growth and division, ion transport, metabolism and signal transduction that are also positively regulated by ABA. These results suggest that ABA may mediate the regulation of these biological processes in response to this stress combination in roots (Liu et al, 2013). Other hormones are also involved in the response to these combined stresses, including cytokinins and auxins (Basu et al, 2016).…”

Section: Nutrient Deficienciesmentioning

confidence: 96%

“…Interestingly, these altered genes are involved in the synthesis of hormones like ABA and auxin, or in RNA regulation and transport (Jia et al, 2017). In maize roots, several HSFs regulated by ABA are activated under heat stress as well as the combination of heat and drought stress, but not under drought stress alone (Liu et al, 2013). All these data uncover the complexity of the molecular response of plants to this stress combination and reveal the interest of studying this process to identify putative targets genes to improve crop tolerance under natural environmental conditions.…”

Section: Nutrient Deficienciesmentioning

confidence: 99%

“…The exogenous treatment with N and P seems to affect the freezing tolerance of winter wheat, enhancing root growth and increasing the tissue concentrations of N and P (Gusta et al, 1999). Similarly, the use of Zn improves the tolerance to low temperatures in rice (Liu et al, 2021). Finally, exogenous application of K + causes an increase in root dry weight and RWC as well as an increase in the expression of genes encoding for antioxidant enzymes such as CAT, SOD, and GPX in ginseng plants subjected to chilling stress (Devi et al, 2012).…”

Section: Cold and Nutrient Deficienciesmentioning

confidence: 99%

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Effects of Combined Abiotic Stresses Related to Climate Change on Root Growth in Crops

2022

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Climate change is a major threat to crop productivity that negatively affects food security worldwide. Increase in global temperatures are usually accompanied by drought, flooding and changes in soil nutrients composition that dramatically reduced crop yields. Against the backdrop of climate change, human population increase and subsequent rise in food demand, finding new solutions for crop adaptation to environmental stresses is essential. The effects of single abiotic stress on crops have been widely studied, but in the field abiotic stresses tend to occur in combination rather than individually. Physiological, metabolic and molecular responses of crops to combined abiotic stresses seem to be significantly different to individual stresses. Although in recent years an increasing number of studies have addressed the effects of abiotic stress combinations, the information related to the root system response is still scarce. Roots are the underground organs that directly contact with the soil and sense many of these abiotic stresses. Understanding the effects of abiotic stress combinations in the root system would help to find new breeding tools to develop more resilient crops. This review will summarize the current knowledge regarding the effects of combined abiotic stress in the root system in crops. First, we will provide a general overview of root responses to particular abiotic stresses. Then, we will describe how these root responses are integrated when crops are challenged to the combination of different abiotic stress. We will focus on the main changes on root system architecture (RSA) and physiology influencing crop productivity and yield and convey the latest information on the key molecular, hormonal and genetic regulatory pathways underlying root responses to these combinatorial stresses. Finally, we will discuss possible directions for future research and the main challenges needed to be tackled to translate this knowledge into useful tools to enhance crop tolerance.

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Section: Nutrient Deficienciesmentioning

confidence: 96%

Section: Nutrient Deficienciesmentioning

confidence: 99%

Section: Cold and Nutrient Deficienciesmentioning

confidence: 99%

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Effects of Combined Abiotic Stresses Related to Climate Change on Root Growth in Crops

2022

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“…Tillering is an essential trait for crop yield, and it is also important for the rapid establishment and recovery of plants after they are subjected to stresses [ 25 , 26 ]. The development of tillers that initiate from crowns is controlled by endogenous factors and environmental factors [ 27 , 28 ]. The tiller growth of perennial ryegrass is sensitive to drought stress [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Transcriptome-Based Weighted Gene Co-Expression Network Analysis Reveals the Photosynthesis Pathway and Hub Genes Involved in Promoting Tiller Growth under Repeated Drought–Rewatering Cycles in Perennial Ryegrass

Ding,

Zhang,

et al. 2024

Plants

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Drought stress, which often occurs repeatedly across the world, can cause multiple and long-term effects on plant growth. However, the repeated drought–rewatering effects on plant growth remain uncertain. This study was conducted to determine the effects of drought–rewatering cycles on aboveground growth and explore the underlying mechanisms. Perennial ryegrass plants were subjected to three watering regimes: well-watered control (W), two cycles of drought–rewatering (D2R), and one cycle of drought–rewatering (D1R). The results indicated that the D2R treatment increased the tiller number by 40.9% and accumulated 28.3% more aboveground biomass compared with W; whereas the D1R treatment reduced the tiller number by 23.9% and biomass by 42.2% compared to the W treatment. A time-course transcriptome analysis was performed using crown tissues obtained from plants under D2R and W treatments at 14, 17, 30, and 33 days (d). A total number of 2272 differentially expressed genes (DEGs) were identified. In addition, an in-depth weighted gene co-expression network analysis (WGCNA) was carried out to investigate the relationship between RNA-seq data and tiller number. The results indicated that DEGs were enriched in photosynthesis-related pathways and were further supported by chlorophyll content measurements. Moreover, tiller-development-related hub genes were identified in the D2R treatment, including F-box/LRR-repeat MAX2 homolog (D3), homeobox-leucine zipper protein HOX12-like (HOX12), and putative laccase-17 (LAC17). The consistency of RNA-seq and qRT-PCR data were validated by high Pearson’s correlation coefficients ranging from 0.899 to 0.998. This study can provide a new irrigation management strategy that might increase plant biomass with less water consumption. In addition, candidate photosynthesis and hub genes in regulating tiller growth may provide new insights for drought-resistant breeding.

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The role of strigolactone analog (GR24) in endogenous hormone metabolism and hormone-related gene expression in tobacco axillary buds

Tian,

Tang,

Fan

et al. 2023

Plant Cell Rep

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Nitrogen limits zinc‐mediated stimulation of tillering in rice by modifying phytohormone balance under low‐temperature stress

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 4 publications

References 101 publications

Effects of Combined Abiotic Stresses Related to Climate Change on Root Growth in Crops

Effects of Combined Abiotic Stresses Related to Climate Change on Root Growth in Crops

Transcriptome-Based Weighted Gene Co-Expression Network Analysis Reveals the Photosynthesis Pathway and Hub Genes Involved in Promoting Tiller Growth under Repeated Drought–Rewatering Cycles in Perennial Ryegrass

The role of strigolactone analog (GR24) in endogenous hormone metabolism and hormone-related gene expression in tobacco axillary buds

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