Transport Processes in Roots

Pitman, M. G.; Anderson, W. P.; Lüttge, Ulrich; Epstein, Emanuel

doi:10.1007/978-3-642-66230-0_3

Cited by 4 publications

(2 citation statements)

References 328 publications

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“…Chemical evaluations are repeatedly in use to calculate amounts of nutrient absorption by roots, and this is attributed to approximating fluctuations in nutrient composition in both roots and shoots. The absorption method is attained by finding the average of the values over some days (Pitman, 1976;Lamshoeft et al, 2018). The rate of monovalent cation uptake is usually greater than that of polyvalent cations in crop plants (Fageria, 1973;Belatus, 2018).…”

Section: Methods For Measuring Ion Uptakementioning

confidence: 99%

Mechanisms of Nutrient Uptake and Assimilation Processes in Some Plants: A Review

Kiri

2023

dujopas

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Nutrient demands of plants are fulfilled via nutrient uptake by the roots, even though minor quantities of certain nutrients might be assimilated via leaves. For the reason that the majority of nutrients are assimilated by roots, an understanding of root morphology and cell structure is crucial in knowing this basic plant process. Nutrient achievement by plants hinges on ion applications on superficial, root assimilation capacity, and plant requirement. Movement of ion in plant cells is classified into active and passive. Ion concentrations in the cytoplasm of plant cells are frequently and considerably observed to be greater than in soil solutions. Consequently, roots ought to be able to take up ions in contrast to broadly diverse concentration gradients. Currently, two major theories of ion transport across membranes are reported in literature: carrier theory where carrier agents accountable for transferring ions from one side of membrane to the other; encounter specific ions for which they have attraction, form carrier ion complexes; and move across membranes and connecting ATPase theory of ion transport; which is related with the plasmalemma and is activated by cations; the ion pump theory, which is a demanding proces, transporting via electrochemical gradient. Measurements of ion uptake could be achieved through tracer techniques. Long-distance transport of ions to shoots happens in the vascular system, with water being the transporting agent. New and stimulating developments in mineral uptake mechanism of plants have momentously added to our understanding of the function of nutrients uptake in plants. Most research comparative to physiology of nutrient uptake has been conducted under controlled environment by means of particular nutrient cultures in the growth medium.

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Section: Methods For Measuring Ion Uptakementioning

confidence: 99%

Mechanisms of Nutrient Uptake and Assimilation Processes in Some Plants: A Review

Kiri

2023

dujopas

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“…The nutrient solution's pH was maintained between 4.5 and 5. Visual salt injury scores were assessed using the IRRI protocol [27]. The standard evaluation system with scores ranging from 1 to 9 was employed.…”

Section: Preparation Of the Yoshida Nutrient Solution For Hydroponicsmentioning

confidence: 99%

Mitigation of Salinity Stress by Application of Plant Growth Promoting Substances in Rice

Selvamani,

Senthil,

Ravichandran

et al. 2023

IJECC

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Aim: Salt stress adversely affects plant growth and development. Various mitigating strategies have been employed to enhance the adaptability of plants to salt stress. The present study was conducted with the objective of evaluating the recently developed CO55 rice variety's ability to withstand salt-induced stress during seedling growth. This evaluation included foliar spraying of plant growth promoting substances like melatonin, salicylic acid, silicon, and selenium, along with the identification of effective plant growth-promoting substances that exhibit tolerance to salinity. This study is required to develop salt-tolerant varieties capable of withstanding salinity stress during the seedling stage. The seedling stage is more susceptible to salinity, and also to increase the growth and yield of rice, thereby satisfying the country's agricultural needs. Study Design: Completely randomized design. Place and Duration of Study: Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore; March-April 2023. Methodology: In the hydroponics experiment, the CO55 rice variety was subjected to foliar spraying of various plant growth promoting substances such as melatonin, salicylic acid, orthosilicic acid, and sodium selenate. Parameters like leaf drying score, osmotic potential, osmotic adjustment, sodium content, potassium content, and Na+/K+ ratio were assessed. One-way ANOVA was used to analyze the data. Results: Specific pairwise differences between means were assessed at the 0.05 significance level using Fisher's least significant difference (LSD) test. Among the treatments applied, salicylic acid recorded the highest potassium content (3.94%), and the lowest potassium content (2.60%) was found in orthosilicic acid. On the other hand, from the standard evaluation score, it was observed that CO55 rice variety seedlings were found to be tolerant when treated with salicylic acid, whereas it was susceptible under orthosilicic acid treatment. Conclusion: Observations indicated that foliar application of salicylic acid at the concentrations of 50µM and 100µM exhibited higher tolerance towards salinity during the seedling growth stages.

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Effect of elevated CO2 on orchard grass and red clover grown in mixture at two levels of nitrogen or water supply

Meier¹,

Fuhrer²

1997

Environmental and Experimental Botany

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Transport Processes in Roots

Cited by 4 publications

References 328 publications

Mechanisms of Nutrient Uptake and Assimilation Processes in Some Plants: A Review

Mechanisms of Nutrient Uptake and Assimilation Processes in Some Plants: A Review

Mitigation of Salinity Stress by Application of Plant Growth Promoting Substances in Rice

Effect of elevated CO2 on orchard grass and red clover grown in mixture at two levels of nitrogen or water supply

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