Nitrogen-regulated changes in total amino acid profile of maize genotypes having contrasting response to nitrogen deficit

Ganie, Arshid Hussain; Ahmad, Altaf; Yousuf, Peerzada Yasir; Pandey, Renu; Ahmad, Sayeed; Aref, Ibrahim; Iqbal, Muhammad

doi:10.1007/s00709-017-1106-z

Cited by 19 publications

(8 citation statements)

References 36 publications

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“…Consequently, Ca 2+ , Mg 2+ , NO 3 − , and PO 4 3− as well as plant hormones and enzymes cannot be translocated, and the source-sink relationship is interrupted [67]. The exogenous application of K at different growth stages decreases the uptake of harmful nutrients, enhancing tolerance to abiotic stress and boosting the yield and yield-related characteristics [68]. Iron (Fe) is another vital micronutrient that also has a synergistic relationship with K [69].…”

Section: Nutrient Balancementioning

confidence: 99%

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

et al. 2018

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Among the plant nutrients, potassium (K) is one of the vital elements required for plant growth and physiology. Potassium is not only a constituent of the plant structure but it also has a regulatory function in several biochemical processes related to protein synthesis, carbohydrate metabolism, and enzyme activation. Several physiological processes depend on K, such as stomatal regulation and photosynthesis. In recent decades, K was found to provide abiotic stress tolerance. Under salt stress, K helps to maintain ion homeostasis and to regulate the osmotic balance. Under drought stress conditions, K regulates stomatal opening and helps plants adapt to water deficits. Many reports support the notion that K enhances antioxidant defense in plants and therefore protects them from oxidative stress under various environmental adversities. In addition, this element provides some cellular signaling alone or in association with other signaling molecules and phytohormones. Although considerable progress has been made in understanding K-induced abiotic stress tolerance in plants, the exact molecular mechanisms of these protections are still under investigation. In this review, we summarized the recent literature on the biological functions of K, its uptake, its translocation, and its role in plant abiotic stress tolerance.

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Section: Nutrient Balancementioning

confidence: 99%

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

et al. 2018

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“…Nitrogen is one of the most abundant elements and is required for the biosynthesis of amino acids, proteins, and enzymes in plant cells (Ganie et al, 2017). Neolamarckia cadamba is fastgrowing species, and its rapid growth must be dependent on an adequate supply of N. Therefore, ND certainly affects the rapid growth of N. cadamba, but previous studies have not elucidated the underlying mechanisms.…”

Section: Discussionmentioning

confidence: 99%

Physiological and Transcriptomic Responses to Nitrogen Deficiency in Neolamarckia cadamba

Zhang

et al. 2021

Front. Plant Sci.

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Nitrogen (N) is one of the abundant and essential elements for plant growth and development, and N deficiency (ND) affects plants at both physiological and transcriptomic levels. Neolamarckia cadamba is a fast-growing woody plant from the Rubiaceae family. However, the physiological and molecular impacts of ND on this species have not been well investigated. Here, we studied how N. cadamba responds to ND under hydroponic conditions. In a physiological aspect, ND led to a reduction in biomass, chlorophyll content, and photosynthetic capacity. ND also impaired the assimilation of N as the activities of glutamine synthetase (GS) and nitrate reductase (NR) were decreased in the root. Interestingly, the lignin content of stem increased progressively during the ND stress. The main transcription factors, the transcription factors that are important to N regulation has been found to be upregulated, including Nodule inception-like protein 7 (NLP7), TGACG motif-binding factor 1 (TGA1), basic helix-loop-helix protein 45 (BHLH45), NAM, ATAF1,2, CUC2 (NAC) transcription factor 43 (NAC43), and basic leucine zipper pattern 44 (bZIP44). The expression of N transporters, such as nitrate transporter 2.4 (NRT2.4), ammonium transporter 3 (AMT3), and amino acid transporter protein 3 (AAP3), was also upregulated. In addition, phosphorus- and calcium-related genes such as phosphate starvation response 2 (PHR2) and cyclic nucleotide-gated ion channel 15 (CNGC15) were expressed more abundantly in response to ND stress. Our results reveal the physiological and molecular mechanisms by which woody plants respond to ND.

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“…Taha et al ., (2014) noted that high increment in the bear tree, fruit set %, average fruit weight and diminished of proportions of fruit drop are committed by the exogenous foliar spray of potassium sulphate and humic acid independently or by mixing the two materials. Also, diminishing the absorbance of harmful elements, approving resistance to abiotic stress and encouraging the fruit-bearing and its related traits returned to the exogenous application of potassium at tremendous growth stages (Ganie et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Effect of Sulfur and Potassium Application under Salinity Stress on Productivity and Fruit Quality of Swelling Peach Cultivar

Shaddad

Ghieth

Hegazy

2019

Journal of Plant Production

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This study was conducted during two successive seasons (2016 and 2017) at El-Sheikh Zwayed, North Sinai Governorate, Egypt. The aim of this research was to investigate the effect of three anti-salt stress materials (Nile fertile, elemental sulfur and potassium sulfate) on Swelling peach cultivar under irrigation water saline stress. In this experiment Nile fertile was applied at (0, 500 and 1000 gm/ tree), elemental sulfur (95% S) as soil application at three levels (0, 500 and 750 g / tree) and potassium sulphate as foliar application on three concentrations (0, 2, and 4 g/l.) and combination of them. The obtained results revealed that all anti-salt stress substances have a positive effect on vegetative growth parameters, fruit set, and yield/tree. The highest significant value of the final fruit set, yield/tree was obtained with Nile fertile treatment followed by elemental sulfur and potassium sulphate in both seasons of this study. On the other hand, there was no significant differences between the three materials on fruit length, fruit diameter, flesh and pit fruit weight, total soluble solids, total acidity and leaf content of N%, P% and k% during both seasons of the study and leaf content of Fe (ppm) in the 1 st season. While the interaction effect between the three investigated factors shows clearly significant effects in improving vegetative growth, final fruit set no. of fruits /tree, fruit weight, crop yield, fruit physical and chemical parameters. Thus, the combination between Nile fertile 1000g/tree + elemental sulfur 750g/tree + potassium sulphate at (4g/L) gave the best results on shoot length, leaf area, initial, final fruit set %, fruit length and diameter, flesh weight (g), pit weight (g), maximum yield/tree, TSS, lowest acidity%. In addition to N, P, K, Fe, Zn and Mn in leaves in both seasons. On the other hand, untreated trees recorded the lowest values in previous studied parameters in this respect.

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Nitrogen-regulated changes in total amino acid profile of maize genotypes having contrasting response to nitrogen deficit

Cited by 19 publications

References 36 publications

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

Potassium: A Vital Regulator of Plant Responses and Tolerance to Abiotic Stresses

Physiological and Transcriptomic Responses to Nitrogen Deficiency in Neolamarckia cadamba

Effect of Sulfur and Potassium Application under Salinity Stress on Productivity and Fruit Quality of Swelling Peach Cultivar

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