scholarly journals Ion transportation and accumulation of total sugar, soluble protein and amino acid in Lens culinaris Medik Var. Barimasur-4 (Lentil) under phosporus deficiency

2013 ◽  
Vol 38 (1) ◽  
pp. 1-6
Author(s):  
Bimal Chandra Sarker ◽  
JL Karmoker
Keyword(s):  
Amino Acid ◽  
Lens Culinaris ◽  
Phosphorus Deficiency ◽  
Solution Culture ◽  
Total Sugar ◽  
Total Amino Acid ◽  
P Deficiency ◽  
Total Sugars ◽  
Biochemical Responses ◽  
Amino Acid Contents

Some ionic and biochemical responses of lentil (Lens culinaris Medik.) under phosphorus deficient condition were studied. Seedlings were raised in solution culture containing phosphorus and without phosphorus (P-deficiency). Phosphorus deficiency decreased Ca­2+ and Fe2+ accumulation and slightly decreased Mg2+ accumulation in root and shoot of lentil. Phosphorus deficiency caused a decrease in accumulation of total sugars in leaf and stem but increased in root. Accumulation of total soluble proteins was depressed in lentil following P-deficiency treatment. Phosphorus deficiency increased total amino acid contents in both root and shoot. DOI: http://dx.doi.org/10.3329/jasbs.v38i1.15315 J. Asiat. Soc. Bangladesh, Sci. 38(1): 1-6, June 2012

scholarly journals Effects of aluminium toxicity on some biochemical components of rice (Oryza sativa L.)

2020 ◽  
Vol 29 (1) ◽  
pp. 125-132
Author(s):  
Rifat Samad ◽  
Parveen Rashid ◽  
JL Karmoker
Keyword(s):  
Amino Acid ◽  
Phenolic Compounds ◽  
Oryza Sativa L ◽  
Aluminium Toxicity ◽  
Solution Culture ◽  
Total Sugar ◽  
Sand Culture ◽  
Total Amino Acid ◽  
Rice Seedlings ◽  
Rice Plants

An experiment was conducted to investigate the effect of aluminium (Al) toxicity on reducing and total sugar, proline, total amino acid and protein in rice seedlings grown in solution culture and phenolic compounds, chlorophyll and carotenoids in rice plants grown in sand culture. Exposure of rice seedlings to different concentrations of aluminium (10 - 150 μM) led to a stimulation of reducing and total sugar in the root and the shoot. Similarly, Al stress increased proline and total amino acid contents in different parts of rice seedlings. Aluminium toxicity caused a significant increase in phenolic compounds in rice plants. On the other hand, aluminium stress resulted in a reduction of chlorophyll-a, chlorophyll-b and carotenoid contents in the leaves of rice plants. Dhaka Univ. J. Biol. Sci. 29(1): 125-132, 2020 (January)

scholarly journals Effect of phosphorus deficiency on growth and trasport of k+, na+, cl-, no3- in lentil seedling (lens culinaris medik. Var. Barimasur-4)

1970 ◽  
Vol 20 (2) ◽  
pp. 103-108 ◽  
Author(s):  
Bimal Chandra Sarker ◽  
JL Karmoker
Keyword(s):  
Key Words ◽  
Dry Matter ◽  
Lens Culinaris ◽  
Phosphorus Deficiency ◽  
Culture Solution ◽  
P Deficiency ◽  
Monovalent Ions ◽  
Lentil Seedling

Effects of phosphorus deficiency on accumulation of dry matter and transport of some monovalent ions viz., Na+, K+, Cl- , and NO3- in lentil showed that seedlings raised in culture solution with and without different amount of phosphorus decreased accumulation of K+ and increased accumulation of Na+ in both the root and shoot of lentil. Cl– contents increased under P?deficiency. Concentration of NO3- was increased in the root and decreased in the shoot of P?deficient lentil. P-deficiency caused an increase in the root dry matter and a decrease in the shoot. P-deficiency resulted in a decrease in the shoot : root. Key words: P-deficiency; Growth; Transport; Na+; K+; Cl–; NO3–; Lentil, DOI: http://dx.doi.org/10.3329/dujbs.v20i2.8967 DUJBS 2011; 20(2): 103-108   

scholarly journals Metabolic and physiological analyses reveal that Populus cathayana males adopt an energy-saving strategy to cope with phosphorus deficiency

2019 ◽  
Vol 39 (9) ◽  
pp. 1630-1645 ◽  
Author(s):  
Sheng Zhang ◽  
Duoteng Tang ◽  
Helena Korpelainen ◽  
Chunyang Li
Keyword(s):  
Amino Acid ◽  
Energy Saving ◽  
Acid Content ◽  
Phosphorus Deficiency ◽  
Metabolome Analysis ◽  
Inorganic Pyrophosphate ◽  
P Deficiency ◽  
Populus Cathayana ◽  
Males And Females ◽  
Pi Deficiency

Abstract Dioecious trees have evolved sex-specific adaptation strategies to cope with inorganic phosphorus (Pi) limitation. Yet, little is known about the effects of Pi limitation on plant metabolism, particularly in dioecious woody plants. To identify potential gender-specific metabolites appearing in response to Pi limitation in poplars, we studied the metabolic and ionomic responses in the roots and leaves of Populus cathayana Rehd males and females exposed to a 60-day period of Pi deficiency. Besides significant decreases in phosphorus contents in both Pi-deficient roots and leaves, the calcium level decreased significantly and the sulfur content increased significantly in Pi-deficient male roots, while the zinc and ferrum contents increased significantly in Pi-deficient female roots. Inorganic P deficiency caused a smaller change in the abscisic acid content, but a significant increase in the jasmonic acid content was detected in both leaves and roots. Salicylic acid significantly decreased under Pi deficiency in male leaves and female roots. Changes were found in phospholipids and phosphorylated metabolites (e.g., fructose-6-phosphate, glycerol-3-phosphate, glucose-6-phosphate, phosphoric acid and inositol-1-phosphate) in roots and leaves. Both P. cathayana males and females relied on inorganic pyrophosphate-dependent but not on Pi-dependent glycolysis under Pi-deficient conditions. Sex-specific metabolites in leaves were primarily in the category of primary metabolites (e.g., amino acids), while in roots primarily in the category of secondary metabolites (e.g., organic acids) and sugars. The metabolome analysis revealed that sexually different pathways occurred mainly in amino acid metabolism, and the tissue-related differences were in the shikimate pathway and glycolysis. We observed changes in carbon flow, reduced root biomass and increased amino acid contents in P. cathayana males but not in females, which indicated that males have adopted an energy-saving strategy to adapt to Pi deficiency. Thus, this study provides new insights into sex-specific metabolic responses to Pi deficiency.

scholarly journals Protein Content and Amino Acid Balance of Yams

1969 ◽  
Vol 57 (1) ◽  
pp. 78-83
Author(s):  
F. W. Martin ◽  
A. E. Thompson
Keyword(s):  
Amino Acids ◽  
High Temperature ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Protein Content ◽  
Acid Composition ◽  
Total Protein ◽  
Total Amino Acid ◽  
Amino Acid Contents ◽  
Amino Acid Balance

The total protein of 38 yam (Dioscorea) cultivars, as tested by Kjeldahl methods, and their amino acid composition, determined by high temperature hydrolysis and GLC chromatography, are reported. Species and varieties differed in total protein and total amino acid contents. Proteins of four species, but not D. alata, were somewhat low in lysine. Proteins of all species were deficient in sulphur-containing amino acids, methionine, and especially cystine. Varietal differences, however, suggest that cultivars can be selected with more balanced protein.

scholarly journals Relation of wheat species and genomes in amino-acid composition

2019 ◽  
Vol 7 (1-2) ◽  
pp. 16-22
Author(s):  
Pal Pepo
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Winter Wheat ◽  
Acid Content ◽  
Essential Amino Acid ◽  
Amino Acid Content ◽  
Total Amino Acid ◽  
Wheat Varieties ◽  
Amino Acid Contents ◽  
Winter Wheat Varieties

As regards wheat varieties constituting a natural ploid series the issue of analysing diploid, tetraploid and hexaploid species is topical since ancient varieties can play significant roles in contemporary agriculture as well. Seventeen winter wheat varieties, out of which 2 diploid varieties carried genome A, 9 diploidic types had genomes AB, two varieties had genomes AG and four varieties were hexaploid ones with genomes ABD, were analysed from the point of view of their amino acid compositions. The amino acid contents of Asp, Thr, Ser, Glu, Gly, Ala, Cys, Val, Met, Ile, Leu, Tyr, Phe, His, Lys, Arg, Pro (a total of 17) were determined in the varieties listed above. It has been found that the amino acid contents of the grains genotype AA Triticum boeticum and T. monococcum exceeded the amino acid content of T. aestivum in respect of all the amino acids analysed in this experiment, with Glu being the only exception. In comparison with the aestivum wheat, essential amino acid contents showed a similarly favourable picture in the diploidic varieties mentioned. As regards type AB tetraploid varieties excesses of 13-16%, in comparison to the aestivum wheat, were found in essential amino acid contents. The amounts of non-essential amino acids in all the winter wheat varieties showed decreases irrespective of the ploid level. What concerns the total amino acid content, all the winter wheat varieties with the exception of T. monococcum (A), T. dicoccoides (AB) and T. dicoccum (AB) contained less amino acid than the aestivum wheat. All the monocarbonic acid and aromatic as well as heterocyclic amino acid contents of the wildly growing Triticum boeticum (A) and the grown Triticum monococcum (A) (with polaric, apolaric R groups, diamino radicles) exceeded the same contents of T. aestivum. The value of the monoamino-dicarbonic acid, however, was lower in our experiment.  

scholarly journals Mechanisms of heat damage in proteins

1975 ◽  
Vol 34 (2) ◽  
pp. 325-337 ◽  
Author(s):  
Shirley A. Varnish ◽  
K. J. Carpenter
Keyword(s):  
Heat Treatment ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Close Agreement ◽  
Total Amino Acid ◽  
Lysine Content ◽  
Chemical Analyses ◽  
Chick Growth ◽  
Amino Acid Availability ◽  
Amino Acid Contents

1. The preparation of a propionylated protein is described, and the effects of this treatment on amino acid composition and availability are compared with the effects of severe heat treatment (autoclaving) of a protein.2. Using chemical analyses, changes exceeding 5% for total tyrosine, histidine, methionine and cystine contents were found after propionylation of the protein. Autoclaving of the protein resulted in changes in total serine, lysine, methionine, cystine and tryptophan contents.3. Microbiological estimates of total amino acid contents were not in close agreement with the chemical estimates for the autoclaved protein.4. Fluorodinitrobenzene-reactive lysine content was reduced to almost zero by propionylation, and by almost 40% by autoclaving.5. Both propionylating and autoclaving protein reduced the amount of lysine available to the chick by about half. In contrast, the availabilities of methionine and tryptophan to the chick were unchanged by propionylation, but were reduced to 0.66 and 0.44 respectively, relative to the untreated protein, by autoclaving.6. Because of the difficulties of obtaining reliable absolute estimates of amino acid availability using chick growth assays, our interpretation of results is mainly based on relative values. The merits of microbiological microbiological estimates of amino acid availability are assessed.

scholarly journals Screening Tolerance to Phosphorus Deficiency and Validation of Phosphorus Uptake 1 (Pup1) Gene-Linked Markers in Thai Indigenous Upland Rice Germplasm

Agronomy ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 81 ◽  
Author(s):  
Sompong Chankaew ◽  
Tidarat Monkham ◽  
Wanwipa Pinta ◽  
Jirawat Sanitchon ◽  
Wanwipa Kaewpradit ◽  
...  
Keyword(s):  
Upland Rice ◽  
Phosphorus Deficiency ◽  
Phosphorus Uptake ◽  
Rice Cultivar ◽  
Solution Culture ◽  
Tolerance Index ◽  
Rice Varieties ◽  
P Deficiency ◽  
Rice Germplasm ◽  
Pcr Product

Phosphorus (P) deficiency is a major factor limiting rice yield throughout the world. Fortunately, some rice accessions are tolerant and can thrive well, even in soils with low P content. The ability to uptake P is heritable, and thus can be incorporated into rice cultivars through standard breeding methods. The objective of this study was to screen for tolerance to phosphorus deficiency and validate the tolerant accessions with phosphorus uptake 1 (Pup1) gene-linked markers in Thai indigenous upland rice germplasm. One hundred sixty-eight rice varieties were screened in a solution culture and assigned a phosphorus deficiency tolerance index and plant symptom score. Eleven upland rice accessions (ULR026, ULR031, ULR124, ULR145, ULR180, ULR183, ULR185, ULR186, ULR213, ULR260, and ULR305), together with the lowland rice cultivar (PLD), were classified as tolerant. They were each validated by nine markers linked to the Pup1 locus and observed for the expected polymerase chain reaction (PCR) product of 0 to 9 markers. The presence or absence of the tolerant allele at the Pup1 locus showed only a slight relationship with the tolerance. Moreover, some lines such as ULR183 and ULR213 expressed high tolerance without the Pup1-linked gene product. Both accessions are useful for the exploration of novel genes conferring tolerance to phosphorus deficiency.

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