+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Growth, Water Relations, and Accumulation of Organic and Inorganic Solutes in Roots of Maize Seedlings during Salt Stress



Growth, Water Relations, and Accumulation of Organic and Inorganic Solutes in Roots of Maize Seedlings during Salt Stress



Plant Physiology 113(3): 881-893



Seedlings of maize (Zea mays L. cv Pioneer 3906), hydroponically grown in the dark, were exposed to NaCl either gradually (salt acclimation) or in one step (salt shock). In the salt-acclimation treatment, root extension was indistinguishable from that of unsalinized controls for at least 6 d at concentrations up to 100 mM NaCl. By contrast, salt shock rapidly inhibited extension, followed by a gradual recovery, so that by 24 h extension rates were the same as for controls, even at 150 mM NaCl. Salt shock caused a rapid decrease in root water and solute potentials for the apical zones, and the estimated turgor potential showed only a small decline; similar but more gradual changes occurred with salt acclimation. The 5-bar decrease in root solute potential with salt shock (150 mM NaCl) during the initial 10 min of exposure could not be accounted for by dehydration, indicating that substantial osmotic adjustment occurred rapidly. Changes in concentration of inorganic solutes (Na+, K+, and Cl-) and organic solutes (proline, sucrose, fructose, and glucose) were measured during salt shock. The contribution of these solutes to changes in root solute potential with salinization was estimated.

(PDF emailed within 0-6 h: $19.90)

Accession: 002855938

Download citation: RISBibTeXText

PMID: 12223650

DOI: 10.2307/4277603


Related references

Growth, water relations and accumulation of organic and inorganic solutes in the halophyte Limonium latifolium cv. Avignon and its interspecific hybrid Limonium caspia X Limonium latifolium cv. Beltlaard during salt stress. Journal of Plant Physiology 154(5-6): 795-801, 1999

Organic and inorganic solutes accumulation in the leaves and roots of grafted and ungrafted cucumber plants in response to NaCl stress. Journal of Food Agriculture and Environment 7(2): 703-708, 2009

Growth and contents of organic and inorganic solutes in amaranth under salt stress. Pesquisa Agropecuária Tropical 47(1): 22-30, 2017

Root osmotic adjustment under osmotic stress in maize seedlings. 1. Transient change of growth and water relations in roots in response to osmotic stress. Plant Production Science 9(1): 27-38, 2006

Dependence of proline accumulation by roots and shoots of maize seedlings on water stress. Biochemie und Physiologie der Pflanzen: 72 (3) 311-314, 1978

Salt resistance in two cashew species is associated with accumulation of organic and inorganic solutes. Acta Physiologiae Plantarum 34(5): 1629-1637, 2012

Accumulation of organic and inorganic solutes in NaCl-stressed sorghum seedlings from aged and primed seeds. Scientia Agricola 68(6): 632-637, 2011

Effect of water and salt stresses on growth, chlorophyll, mineral ions and organic solutes contents, and enzymes activity in mung bean seedlings. Biologia Plantarum (Prague) 40(3): 351-356, 1997-, 1998

Comparative profiles of gene expression in leaves and roots of maize seedlings under conditions of salt stress and the removal of salt stress. Plant & Cell Physiology 50(4): 889-903, 2009

Assessment of drought tolerance in seedlings of sugar beet (Beta vulgaris L.) cultivars using inorganic and organic solutes accumulation criteria. Soil Science and Plant Nutrition 60(4): 565-576, 2014

Response to Salt Stress in Growth, Water Relations, and Ion Content of Jatropha curcas AND J. cinerea SEEDLINGS. Interciencia 38(4): 298-304, 2013

The effects of salt stress on growth, water relations and ion accumulation in two halophyte Atriplex species. Environmental and Experimental Botany 86(none), 2013

Influence of arbuscular mycorrhiza on organic solutes in maize leaves under salt stress. Mycorrhiza 21(5): 423-430, 2011

Effect of climate on the salt tolerance of two Phragmites australis populations. I. Growth, inorganic solutes, nitrogen relations and osmoregulation. Aquatic Botany 64(3-4): 317-333, Sept, 1999

Effect of potassium on growth, water relations, and the inorganic and organic solute contents for two maize cultivars grown under saline conditions. Journal of Plant Nutrition 18(4): 839-851, 1995