Nodulation of beach pea (Lathyrus maritimus [L.] Bigel.) induced by different strains of rhizobia

1999 ◽  
Vol 79 (2) ◽  
pp. 239-242 ◽  
Author(s):  
C. Gurusamy ◽  
A. K. Bal ◽  
D. B. McKenzie

In an attempt to screen the most effective rhizobial strain for the potential cold-climate legume crop beach pea (Lathyrus maritimus L.), rhizobia from eight different species of Lathyrus were tested along with the native strain on a 9-wk-long pot culture. The native strain, ACCCRC, isolated from beach pea proved to be the most effective. The tropical legume grass pea (L. sativus L.) tested with the above strains failed to nodulate with ACCCRC, USDA 2422 and USDA 2446. Oleosome content of nodules assessed from histological sections reveals higher numbers in beach pea than in grass pea. Key words: Lathyrus maritimus L., Lathyrus sativus L., root nodules, oleosomes (lipid bodies)

2003 ◽  
Vol 81 (6) ◽  
pp. 531-540 ◽  
Author(s):  
Gurusamy Chinnasamy ◽  
Arya Kumar Bal

The developmental patterns of seed, seed coat, and hardseededness were studied in naturally growing crop plants of beach pea (Lathyrus maritimus (L.) Bigel.) at six reproductive growth stages (S1–S6). Grass pea (Lathyrus sativus L.) seeds were used for comparison in some experiments. The accumulation of fresh and dry weight in pod shell and seed of beach pea and pod shell of grass pea followed an almost sigmoidal pattern. However, grass pea seed showed a linear pattern of weight accumulation. During maturation, moisture content of pod shells and seeds decreased because of dehydration. Beach pea seeds were able to germinate precociously at S4. Seeds collected between S1 and S3 failed to germinate because of immaturity, whereas the development of hard seed coats prevented germination in seeds gathered at S5 and S6. An imbibition test revealed that hardseededness completely prevented water absorption of S5 and S6 seeds even after 24 days of soaking. In grass pea, precocious seed germination was observed at S3. However, speed of germination, germination percentage, seedling length and dry weight increased as seeds approached maturity. Lipid and protein accumulation in seeds of both species increased progressively with maturity and showed a positive correlation with seed weight accumulation. In both beach pea and grass pea seeds, S6 was identified as a physiological maturity stage.Key words: beach pea, grass pea, hard seed, imbibition, Lathyrus, seed coat, seed development, water impermeability.


Biologia ◽  
2013 ◽  
Vol 68 (2) ◽  
Author(s):  
Jinglong Jiang ◽  
Miao Su ◽  
Yueru Chen ◽  
Nan Gao ◽  
Chengjin Jiao ◽  
...  

AbstractGrass pea (Lathyrus sativus L.), a legume crop in arid and semi-arid areas, is widely acknowledged as highly drought tolerant. We report here an analysis of grass pea and garden pea seedlings stressed with 20% polyethylene glycol 6000 (PEG) for five days. While leaf margins of grass pea curled inward after PEG stress, leaves of pea failed to display this trait. PEG inhibited the growth of grass pea less than that of pea. Hydrogen peroxide (H2O2) and malondialdehyde (MDA) accumulation increased in pea more than in grass pea. Greater accumulation of proline and soluble sugars alleviated osmotic stress injury to grass pea compared with pea. Moreover, PEG caused a significantly greater increase of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione peroxidase (GPX) activities in grass pea compared to pea. These enzymes showed obvious up-regulation at the transcriptional level in grass pea leaves. Together, these data suggest that the accumulation of osmoprotectants and the improvement of oxidation resistance resulted in the higher drought tolerance of grass pea compared to pea.


10.5219/1327 ◽  
2020 ◽  
Vol 14 ◽  
pp. 385-392
Author(s):  
Erika Zetochová ◽  
Alena Vollmannová ◽  
Ivana Tirdiľová

The aim of this work was to determine the influence of the inoculant on the content of biogenic elements in tenoreign varieties of white lupine (Lupinus albus) and threearieties of grass pea (Lathyrus sativus L.) of Slovak origin. Rizobine was used as the inoculum before sowing. Dried and homogenised seed samples were mineralised using concentrated HNO3 using the MARS X ”“ Press 5 instrument. Analytical determination of macro- and microelements in all samples was performed using ARIAN DUO 240FS/240Z atomic absorption spectrometer. The determined values of biogenic elements content were expressed as mg.kg”“1 of dry matter. The average content of Cu was lower for both crops in variant A compared to variant B. The addition of the inoculant increased the content of Cu in both crops in lupine by 3.7% and grass pea by 10.94%. The Zn content of variant A in lupine was 19.14% higher than that of the grass pea. Grass pea seeds contained 97.76% less Mn than white lupine seeds in both variants. The Cr content of white lupine was 67.74% higher in variant A than in grass pea. The inoculant also increased the content of Cr in lupine by 25.0%. Lupine contained 30.02% less Fe in variant A and 41.27% less Fe in variant B than the grass pea. The results we have obtained show that Ca, K, and P are the predominant elements in the seeds of grass pea in both variants. By comparing selected types of legumes we found that the grass pea features a higher content of Cu, Fe, K, and P. The analysed seeds of white lupine had a higher content of Zn, Mn, Cr, Ni, Co, Na, Ca, and Mg. In conclusion, inoculation does not significantly affect the content of biogenic elements of selected legume species.


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