Mechanism of Low Phosphorus Inducing the Main Root Lengthening of Rice

Ding, Yan; Wang, Zegang; Mo, Shuangrong; Liu, Jing; Xing, Yuan; Wang, Yuanping; Ge, Cailin; Wang, Yulong

doi:10.1007/s00344-020-10161-w

Cited by 15 publications

(19 citation statements)

References 25 publications

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Section: Resultsmentioning

confidence: 99%

“…Existing reports show that there are three TCP family genes in maize species, namely, ZmTCP15, ZmTCP16 and ZmTCP17 ( Ding et al, 2020 ). They have been shown to be involved in auxin signaling responses ( Ding et al, 2020 ). Through a sequence analysis of the promoter of the ZmIAA5 gene, we found that there is a specific binding sequence, GTGGGCCCNN, in the promoter region, and we named this sequence el-IAA5 ( Fig.…”

Section: Resultsmentioning

confidence: 99%

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ZmIAA5 regulates maize root growth and development by interacting with ZmARF5 under the specific binding of ZmTCP15/16/17

Yang

Shi

Zhao

et al. 2022

PeerJ

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Background The auxin indole-3-acetic acid (IAA) is a type of endogenous plant hormone with a low concentration in plants, but it plays an important role in their growth and development. The AUX/IAA gene family was found to be an early sensitive auxin gene with a complicated way of regulating growth and development in plants. The regulation of root growth and development by AUX/IAA family genes has been reported in Arabidopsis, rice and maize. Results In this study, subcellular localization indicated that ZmIAA1-ZmIAA6 primarily played a role in the nucleus. A thermogram analysis showed that AUX/IAA genes were highly expressed in the roots, which was also confirmed by the maize tissue expression patterns. In maize overexpressing ZmIAA5, the length of the main root, the number of lateral roots, and the stalk height at the seedling stage were significantly increased compared with those of the wild type, while the EMS mutant zmiaa5 was significantly reduced. The total number of roots and the dry weight of maize overexpressing ZmIAA5 at the mature stage were also significantly increased compared with those of the wild type, while those of the mutant zmiaa5 was significantly reduced. Yeast one-hybrid experiments showed that ZmTCP15/16/17 could specifically bind to the ZmIAA5 promoter region. Bimolecular fluorescence complementation and yeast two-hybridization indicated an interaction between ZmIAA5 and ZmARF5. Conclusions Taken together, the results of this study indicate that ZmIAA5 regulates maize root growth and development by interacting with ZmARF5 under the specific binding of ZmTCP15/16/17.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

ZmIAA5 regulates maize root growth and development by interacting with ZmARF5 under the specific binding of ZmTCP15/16/17

Yang

Shi

Zhao

et al. 2022

PeerJ

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“…The effect of different phosphorus (P) concentrations on the growth and physiological characteristics of maize and rice have been identified, which revealed that P starvation led to an increase in the concentration of IAA and GA 3 , and no significant change was observed in the concentration of ABA ( Shen et al, 2012 ; Ding et al, 2021 ). It is suggested that the effects of P concentrations on the growth of maize and rice may be associated with the changes in endogenous hormones.…”

Section: Discussionmentioning

confidence: 99%

“…The content of phosphorus (P) in many soils of the world is often low or occurs in fixed forms ( Yang et al, 2014 ; Roy et al, 2016 ). P is an essential nutrient for plant growth and development, as it affects P uptake and endogenous hormone metabolism ( Shen et al, 2012 ; Ding et al, 2021 ; Zhao et al, 2021 ), and its deficiency dramatically affects the productivity of crops, such as sweetpotatoes, potatoes, chillies, soybean, rice, and so on ( Sun et al, 2019 : Kareem et al, 2020 ; He et al, 2021 ; Khanal et al, 2021 ; Nyiraneza et al, 2021 ; Yang et al, 2022 ). Previous studies have focused on the role of P in its uptake, yield, shape of the storage root, starch content, and total sugar quality of sweetpotato ( El-Deen et al, 2011 ; Wang et al, 2017 ; Villordon et al, 2018 ; Munda et al, 2019 ; Kareem et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Response Mechanism of Endogenous Hormones of Potential Storage Root to Phosphorus and Its Relationship With Yield and Appearance Quality of Sweetpotato

Liang

Liu

et al. 2022

Front. Plant Sci.

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Field and pot experiments were conducted to explore the response mechanism of endogenous hormones of potential storage root to phosphorus and its relationship with yield and appearance quality of sweetpotato using five different rates of phosphorus addition. Application of adequate amounts of phosphorus (P2 treatment, 112 kg of P2O5 ha–1 in field experiment or 0.04 g of P2O5 kg–1 in pot experiment) improved the yield and the appearance quality of sweetpotato when compared to the control treatment. This observation can be attributed to the fact that P2 treatment significantly increased the expression of Ibkn1 and APRT genes and the concentration of ZR from 20 to 40 days after planting, but the results were the opposite at 10 days after planting. In addition, an increase in the expression of SRD1, NIT4, IbMADS1, and OPR3 and the concentrations of IAA and JA from day 10 to day 40 after planting were observed. Furthermore, the expression of GA3oX4 and the concentration of GA3 decreased significantly from 20 to 30 days of planting and significantly increased after 40 days of planting. Moreover, a significant decrease in the expression of AAO and concentration of ABA was observed from 10 to 30 days after planting, and a significant increase was observed after 40 days of planting. The results show that P2 treatment promoted root development, particularly significantly increased the number of roots and potential storage roots. P2 treatment significantly increased the diameter, weight, and number of storage roots at 40 days after planting. Finally, proper phosphorus application (112 kg of P2O5 ha–1) increased the yield (enhanced from 18.99 to 25.93%) by increasing the number of storage roots per plant and improving the appearance quality by increasing the length/diameter ratio and uniformity of storage root weight.

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“…Low-phosphorus treatment and root zone high temperature stress have different effects on roots. Crops ensure root nutrient absorption through higher root dry matter allocation and larger root absorption area under low-phosphorus conditions ( Ding et al, 2021 ). At the same time, high temperature in root zone directly affects the root system and the root system is more sensitive to temperature, so it has a greater impact on the root dry mass and root architecture ( Xia et al, 2021b ).…”

Section: Discussionmentioning

confidence: 99%

Effects of Root Zone Warming on Maize Seedling Growth and Photosynthetic Characteristics Under Different Phosphorus Levels

et al. 2021

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Phosphorus content and root zone temperature are two major environmental factors affecting maize growth. Both low phosphorus and root zone high temperature stress significantly affect the growth of maize, but the comprehensive effects of phosphorus deficiency and root zone warming are less studied. This study aimed to explore the effects of phosphorus deficiency and root zone warming on the root absorption capacity, total phosphorus content, and photosynthetic fluorescence parameters of maize seedlings. The results showed that maize shoots and roots had different responses to root zone warming and phosphorus deficiency. Properly increasing the root zone temperature was beneficial to the growth of maize seedlings, but when the root zone temperature was too high, it significantly affected the root and shoot development of maize seedlings. The root zone warming had a more significant impact on the root system, while phosphorus deficiency had a greater impact on the shoots. Phosphorus content and root zone warming had a strong interaction. Under the comprehensive influence of normal phosphorus supply and medium temperature in the root zone, the growth of maize seedlings was the best. Under the combined effects of low phosphorus and high temperature in the root zone, the growth was the worst. Compared with the combination of normal phosphorus and root zone medium temperature treatment, the dry mass of the low-phosphorus root zone high temperature treatment was decreased by 55.80%. Under the condition of low-phosphorus too high root zone temperature reduced root vitality, plant phosphorus content, which in turn affected plant growth and light energy utilization efficiency. In the case of sufficient phosphate fertilizer supply, appropriately increasing the soil temperature in the root zone is beneficial to increase the absorption and utilization of phosphorus by plants and promote the growth and development of maize seedlings.

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Mechanism of Low Phosphorus Inducing the Main Root Lengthening of Rice

Cited by 15 publications

References 25 publications

ZmIAA5 regulates maize root growth and development by interacting with ZmARF5 under the specific binding of ZmTCP15/16/17

ZmIAA5 regulates maize root growth and development by interacting with ZmARF5 under the specific binding of ZmTCP15/16/17

Response Mechanism of Endogenous Hormones of Potential Storage Root to Phosphorus and Its Relationship With Yield and Appearance Quality of Sweetpotato

Effects of Root Zone Warming on Maize Seedling Growth and Photosynthetic Characteristics Under Different Phosphorus Levels

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