Halophilic rhizobacteria from Distichlis spicata promote growth and improve salt tolerance in heterologous plant hosts

Symbiosis ◽  
2017 ◽  
Vol 73 (3) ◽  
pp. 179-189 ◽  
Author(s):  
Rubén Palacio-Rodríguez ◽  
Jessica Lizbeth Coria-Arellano ◽  
José López-Bucio ◽  
Jaime Sánchez-Salas ◽  
Gisela Muro-Pérez ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Distichlis Spicata ◽  
Plant Hosts

Plasticity tradeoffs in salt tolerance mechanisms among desert Distichlis spicata genotypes

2011 ◽  
Vol 38 (3) ◽  
pp. 187 ◽  
Author(s):  
Brynne E. Lazarus ◽  
James H. Richards ◽  
Phoebe E. Gordon ◽  
Lorence R. Oki ◽  
Corey S. Barnes
Keyword(s):  
Salt Tolerance ◽  
Salinity Tolerance ◽  
Gender Segregation ◽  
Dust Control ◽  
Distichlis Spicata ◽  
Cellular Functions ◽  
Natural Habitats ◽  
Greenhouse Study ◽  
Dry Lake ◽  
Gender Based

We investigated genetic differences in salinity tolerance among 20 saltgrass (Distichlis spicata (L.) Greene) genotypes, including constitutive, gender-based and phenotypic plasticity traits, to better understand the basis of adaptation and acclimation by saltgrass in diverse environments. On average, the plants survived NaCl treatments up to ~1 M, with reductions in growth and health that varied with genotype. For these 20 genotypes in a greenhouse study, we showed that greater plasticity in one salt tolerance mechanism was physiologically linked to lesser plasticity in another. Under various levels of constant salinity stress, genotypes employing a strategy of greater plasticity in foliar Na and lesser plasticity in both foliar K : Na and Na turnover rate were better able to substitute Na for K in some cellular functions, especially osmotic adjustment, leading to increased salinity tolerance. Although we observed gender segregation with salinity in the Owens (Dry) Lake Playa (Inyo County, CA, USA) population planted for dust control, from which the genotypes were collected, we did not observe gender differences in salinity tolerance in the greenhouse. Significant physiological plasticity tradeoffs among genotypes, however, did affect overall salinity tolerance and may be important for this species survival in diverse managed and natural habitats.

scholarly journals Relative Salinity Tolerance of Turf-type Saltgrass Selections

HortScience ◽  
2007 ◽  
Vol 42 (2) ◽  
pp. 205-209 ◽  
Author(s):  
Y.L. Qian ◽  
J.M. Fu ◽  
S.J. Wilhelm ◽  
D. Christensen ◽  
A.J. Koski
Keyword(s):  
Salt Tolerance ◽  
Culture System ◽  
Hydroponic Culture ◽  
Distichlis Spicata ◽  
Saline Soils ◽  
Salt Tolerant ◽  
Saline Irrigation ◽  
Turf Quality ◽  
Salinity Levels ◽  
Irrigation Waters

Salt-tolerant turfgrass is highly desirable in areas associated with saline soils or saline irrigation waters. To determine the salt tolerance of 14 saltgrass [Distichlis spicata var. stricta (Greene)] selections, two greenhouse studies were conducted by means of a hydroponic culture system. Five salinity levels (from 2 to 48 dS·m−1) were created with ocean salts. In general, turf quality decreased and leaf firing increased as salinity increased. However, varying levels of salt tolerance were observed among selections based on leaf firing, turf quality, root growth, and clipping yield. Selections COAZ-01, COAZ-18, CO-01, and COAZ-19 exhibited the best turf quality and the least leaf firing at 36 and 48 dS·m−1 salinity levels in both Experiments 1 and 2. At the highest salinity level (48 dS·m−1), COAZ-18 and COAZ-19 exhibited the highest root activity among all accessions. Salinity levels that caused 25% clipping reduction ranged from 21.2 to 29.9 dS·m−1 and were not significantly different among entries. The data on 25% clipping reduction salinity of saltgrass generated in this study rank saltgrass as one of the most salt-tolerant species that can be used as turf.

The Cellular Basis of Salt Tolerance Studied with Tissue Cultures of the Halophytic Grass Distichlis spicata

1985 ◽  
Vol 119 (3) ◽  
pp. 269-280 ◽  
Author(s):  
R.J. Daines ◽  
A.R. Gould
Keyword(s):  
Salt Tolerance ◽  
Distichlis Spicata ◽  
Tissue Cultures ◽  
Cellular Basis

scholarly journals 425 Comparisons of Mechanical Scarification Techniques for Enhancing Seed Germination in Two Saltgrass (Distichlis spicata) Seed Lots

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 466D-466
Author(s):  
Remi Bonnart ◽  
Anthony Koski ◽  
Harrison Hughes
Keyword(s):  
Salt Tolerance ◽  
Seed Germination ◽  
Seed Coat ◽  
Preliminary Data ◽  
Laboratory Experiments ◽  
Germination Rate ◽  
Distichlis Spicata ◽  
Field Germination ◽  
Germination Experiment

Native turfgrasses have received greater attention in recent years because of their usefulness in growing in areas where many other grasses cannot. Saltgrass (Distichlis spicata) has good salt tolerance, but the natural germination rate for the seed is low. This is most likely due to the thickness of the seed coat inhibiting normal imbibition of water. Previous research in our laboratory has demonstrated increased germination with hand-scarification. The purpose of this research was to compare germination rates of machine-scarified, hand-scarified, and nonscarified seed. Scarifying the seeds by hand results in greater uniformity, but the operation is tedious and time-consuming. Machine scarification is quick, but the seeds have reduced uniformity. Two seed lots, one designated “Modoc” and one designated “Granite,” were compared in laboratory and field germination tests. Preliminary observations have shown that “Granite” seed had somewhat higher viability and vigor than the “Modoc” seed. Significantly greater germination occurred with scarification when seeds were germinated at 14 h of light at 30 °C and 10 h of darkness at 20 °C in the laboratory. Although scarification treatments were similar with the “Granite” seeds, near 80% germination, there were significant differences between hand and machine scarification with the”Modoc” seeds; hand scarified seed had greater germination. The field germination experiment had similar results to the laboratory experiments with “Granite” seed. However, scarification did not aid germination of “Modoc” seed. This is thought to be due to low vigor and associated death of seedlings prior to emergence. Preliminary data confirm the low vigor of the “Modoc” seed as compared to “Granite” seed.

Application of SSR Technique for the Identification of Markers Linked to Salinity Tolerance in Rice

2013 ◽  
Vol 19 (2) ◽  
pp. 57-65
Author(s):  
MH Kabir ◽  
MM Islam ◽  
SN Begum ◽  
AC Manidas
Keyword(s):  
Salt Tolerance ◽  
Ssr Markers ◽  
Salinity Tolerance ◽  
Seedling Stage ◽  
Phenotypic Screening ◽  
Salt Tolerant ◽  
Marker Assisted Breeding ◽  
Hydroponic System ◽  
Rice Landrace ◽  
Salt Susceptible

A cross was made between high yielding salt susceptible BINA variety (Binadhan-5) with salt tolerant rice landrace (Harkuch) to identify salt tolerant rice lines. Thirty six F3 rice lines of Binadhan-5 x Harkuch were tested for salinity tolerance at the seedling stage in hydroponic system using nutrient solution. In F3 population, six lines were found as salt tolerant and 10 lines were moderately tolerant based on phenotypic screening at the seedling stage. Twelve SSR markers were used for parental survey and among them three polymorphic SSR markers viz., OSR34, RM443 and RM169 were selected to evaluate 26 F3 rice lines for salt tolerance. With respect to marker OSR34, 15 lines were identified as salt tolerant, 9 lines were susceptible and 2 lines were heterozygous. While RM443 identified 3 tolerant, 14 susceptible and 9 heterozygous rice lines. Eight tolerant, 11 susceptible and 7 heterozygous lines were identified with the marker RM169. Thus the tested markers could be efficiently used for tagging salt tolerant genes in marker-assisted breeding programme.DOI: http://dx.doi.org/10.3329/pa.v19i2.16929 Progress. Agric. 19(2): 57 - 65, 2008

Direct in vitro Regeneration of Arachis Hypogaea L.(Jl-24) and Study of Salt Tolerance

2011 ◽  
Vol 3 (8) ◽  
pp. 52-54 ◽  
Author(s):  
Bhagya Lakshmi Jyothi Kusuma ◽  
◽  
Sharmila Begum S
Keyword(s):  
Salt Tolerance ◽  
Arachis Hypogaea ◽  
In Vitro Regeneration ◽  
Arachis Hypogaea L

INDUCING SALT TOLERANCE IN FRENCH MARIGOLD (TAGETES PATULA) THROUGH SEED PRIMING

2017 ◽  
Vol 16 (3) ◽  
pp. 109-118 ◽  
Author(s):  
Irfan Afzal ◽  
Abdul Rahim ◽  
Muhammad Qasim ◽  
Adnan Younis ◽  
Aamir Nawaz ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Seed Priming ◽  
Tagetes Patula

Improved salt tolerance in rice (Oryza sativa L.) by co-expression of two vacuolar transporter genes involved in compartmentation and proton gradient generation

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
Sushma Muragendra Awaji ◽  
Prashantkumar Shrishail Hanjagi ◽  
Vudayagiri Ramakrishna Sashidhar
Keyword(s):  
Oryza Sativa ◽  
Salt Tolerance ◽  
Oryza Sativa L ◽  
Proton Gradient ◽  
Gradient Generation
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