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1

Differential growth and yield responses of salt-tolerant and susceptible rice cultivars to individual (Na+ and Cl−) and additive stress effects of NaCl

100%
Kumar V., Khare T.
Acta Physiologiae Plantarum
|
2016
|
tom 38
|
nr 07
2

Proline and betaine provide protection to antioxidant and methylglyoxal detoxification systems during cold stress in Camellia sinensis (L.) O. Kuntze

100%
Kumar V., Yadav S. K.
Acta Physiologiae Plantarum
|
2009
|
tom 31
|
nr 2
The aim of this study was to monitor the influence of proline and betaine exposure on antioxidant and methylglyoxal (MG) detoxification system during cold stress in Camellia sinensis (L.) O. Kuntze. Cold stress enhanced MG and lipid peroxidation levels in tea bud (youngest topmost leaf). This increase was resisted upon the exposure of tea bud to proline and betaine. Exposure of tea bud with proline and betaine also help in maintaining thiol/disulfide ratio during cold stress. Proline exposure enhanced glutathione-S-transferase and glutathione reductase (GR) activity, while betaine exposure increased only GR activity during cold stress. Furthermore, effect of proline/betaine was studied on glyoxalase pathway enzymes that are involved in MG detoxification and comprise of two enzymes glyoxalase I and glyoxalase II. Both proline and betaine showed protective effect on glyoxalase I and activating effect on glyoxalase II during cold stress in tea bud. This investigation, therefore, suggest that proline and betaine might provide protection to cold stress in tea by regulating MG and lipid peroxidation formation as well as by activating or protecting some of antioxidant and glyoxalase pathway enzymes.
3

New insights into plant somatic embryogenesis: an epigenetic view

100%
Kumar V., Staden J. V.
Acta Physiologiae Plantarum
|
2017
|
tom 39
|
nr 09
4

Structural and optical properties of sol-gel derived dip-coated CdO thin film

100%
Kumari R., Kumar V.
World Scientific News
|
2018
|
tom 113
5

Multi-tasking of SERK-like kinases in plant embryogenesis, growth, and development: current advances and biotechnological applications

100%
Kumar V., Van Staden J.
Acta Physiologiae Plantarum
|
2019
|
tom 41
|
nr 03
6

Preparation of ZnO thin film using sol-gel dip-coating technique and their characterization for optoelectronic applications

100%
Chaudhary P., Kumar V.
World Scientific News
|
2019
|
tom 121
7

Recent trends and advances in identification and functional characterization of plant miRNAs

81%
Zhou X., Khare T., Kumar V.
Acta Physiologiae Plantarum
|
2020
|
tom 42
|
nr 02
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

24-epibrassinolide restores the synthesis of proteins and amino acids in Brassica juncea L. leaves under imidacloprid stress

81%
Sharma A., Kumar V., Kumar Thukral A., Bhardwaj R.
Journal of Horticultural Research
|
2017
|
tom 25
|
nr 2
9

Utilization of egg shell waste in cellulase production by neurospora crassa under wheat bran-based solid state fermentation

81%
Verma N., Kumar V., Bansal M. C.
Polish Journal of Environmental Studies
|
2012
|
tom 21
|
nr 2
A wide variety of waste resources are available on our planet. Egg shell waste is available in huge quantities from the food processing, egg breaking, and the hatching industries. Calcium plays a vital role in Neurospora crassa hyphal growth. Batch experiments have been performed using pure calcium salt as well as calcium in the form of pretreated egg shell waste in concentrations of 0.4, 0.8, and 1.2 g/l, under wheat branbased solid state fermentation by Neurospora crassa at 30ºC with initial pH 6.0. The present paper describes the utility of wheat bran and egg shell waste in cellulase production. The utilization of economically cheap and abundantly available egg shell waste for cellulase production could be a novel and valuable approach in solid waste management.
10

Polyamines influence morphogenesis and caffeine biosynthesis in in vitro cultures of Coffea canephora P. ex Fr.

81%
Kumar V., Giridhar P., Chandrashekar A., Ravishankar G. A.
Acta Physiologiae Plantarum
|
2008
|
tom 30
|
nr 2
The influence of polyamines, polyamine inhibitors and ethylene inhibitors were tested in Coffea canephora for in vitro morphogenetic response and caffeine biosynthesis. Coffea canephora produced nonembryogenic and embryogenic calli. Somatic embryos were produced only from the embryogenic callus. Endogenous polyamine pools were estimated in these tissues. Somatic embryos were subjected to secondary embryogenesis under the influence of putrescine, silver nitrate and specific inhibitors of polyamine biosynthesis. Estimation of endogenous total polyamines revealed that embryogenic callus contained 11-fold more spermine and 3.3-fold higher spermidine when compared to non-embryogenic callus. Incorporation of polyamines resulted in 58% explant response for embryogenesis when compared to control with 42% response. Incorporation of silver nitrate resulted in 65% response for embryogenesis. Incorporation of polyamine biosynthetic pathway inhibitors DFMO and DFMA resulted in 83% reduction in embryogenic response with concomitant increase in caffeine levels by two-fold as compared to control. These results have clearly demonstrated that polyamines play a crucial role in embryogenesis and caffeine biosynthesis.
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Borrowing and repayment hardships: evidences from farmers in Haryana

81%
Jakhar B., Kait R., Kumar V.
Economic and Regional Studies
|
2022
|
tom 15
|
nr 4
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Farmers' perception of causes and consequences of their indebtedness in Haryana, India

81%
Jakhar B., Kait R., Kumar V.
Economic and Regional Studies
|
2022
|
tom 15
|
nr 1
13
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Loan utilisation and repayment behaviour: evidence from farmers of Haryana

81%
Jakhar B., Kait R., Kumar V.
Economic and Regional Studies
|
2023
|
tom 16
|
nr 2
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Sanatan economics: an eternal economic order

81%
Jakhar B., Kumar V., Sharma S., Sunil
Economic and Regional Studies
|
2023
|
tom 16
|
nr 4
15

Established and abandoned tea [Camillia sinensis L.] rhizosphere: dominant bacteria and their antagonism

81%
Sood A., Sharma S., Kumar V., Thakur R. L.
Polish Journal of Microbiology
|
2008
|
tom 57
|
nr 1
Some parts of the Indian Himalayan region are covered by established and abandoned tea bushes. Rhizospheric soils of these plants were studied for bacterial dominance and antagonism. Representatives of Bacillus and Pseudomonas genera were found to dominate the rhizosphere of established and abandoned tea bushes, respectively. Amongst the isolated species Bacillus subtilis and Bacillus mycoides appeared to be closely associated with roots of established tea bushes while the rhizosphere of abandoned tea bushes was dominated by Pseudomonas putida. Four isolates of both B. subtilis and P. putida were selected on the basis of maximum antibacterial activity. The bacteriocin-like activity of B. subtilis and P. putida strains was detected to be active over a range of temperature 0-50°C and was sensitive to proteolytic enzymes. Incubation of indicator strains with different concentrations of bacteriocin-like substances confirmed their bactericidal activity. Various species of Bacillus and Pseudomonas behaved antagonistically amongst themselves due to the production of bacteriocins under in vitro conditions.
16

Jak mierzyc efekty marketingu

71%
Rust R. T., Ambler T., Carpenter G. S., Kumar V., Srivastava R. K.
Marketing i Rynek
|
2004
|
tom 11
|
nr 12
36-42
17

Multivariate analysis on the distribution of elements in plants

71%
Kumar V., Sharma A., Bakshi P., Bhardwaj R., Thukral A. K.
Acta Physiologiae Plantarum
|
2018
|
tom 40
|
nr 11
18

Direct shoot bud induction and plant regeneration in Capsicum frutescens Mill.: influence of polyamines and polarity

61%
Kumar V., Sharma A., Narasimha Prasad B. C., Gururaj H. B., Giridhar P., Ravishankar G. A.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 1
Direct shoot bud induction and plant regeneration was achieved in Capsicum frutescens var. KTOC. Aseptically grown seedling explants devoid of roots, apical meristem and cotyledons were inoculated in an inverted position in medium comprising of Murashige and Skoog (Physiol Plant 15:472–497, 1962) basal medium supplemented with 2-(N-morpholine) ethanesulphonic acid buffer along with 2.28 µM indole-3-acetic acid, 10 µM silver nitrate and either of 13.31– 89.77 µM benzyl adenine (BA), 9.29–23.23 µM kinetin, 0.91–9.12 µM zeatin, 2.46–9.84 µM 2-isopentenyl adenine. Profuse shoot bud induction was observed only in explants grown on a media supplemented with BA (26.63 µM) as a cytokinin source and 19.4 ± 4.2 shoot buds per explant was obtained in inverted mode under continuous light. Incorporation of polyamine inhibitors in the culture medium completely inhibited shoothoot bud induction. Incorporation of exogenous polyamines improved the induction of shoot buds under 24 h photoperiod. These buds were elongated in MS medium containing 2.8 µM gibberellic acid. Transfer of these shoots to hormone-free MS medium resulted in rooting and rooted plants were transferred to fields. This protocol can be efficiently used for mass propagation and presumably also for regeneration of genetically transformed C. frutescens.
19

Differential seminal plasma proteome signatures of acute lymphoblastic leukemia survivors

61%
Jain P., Ojha S. K., Kumar V., Bakhshi S., Singh S., Yadav S.
Reproductive Biology
|
2019
|
tom 19
|
nr 4
20

6-Benzylaminopurine affects lipid peroxidation and membrane permeability and thereby preserves curd quality and antioxidants during storage of cauliflower

61%
Siddiqui M. W., Singh J. P., Nayyer M. A., Barman K., Ahmad M. S., Kumar V.
Acta Physiologiae Plantarum
|
2015
|
tom 37
|
nr 05
Cauliflower curd has a relatively short postharvest life and develops unpleasant odour and browning within a short period. A few low-temperaturelinked attempts, with limited success, have been made. However, in most of the countries, it is not stored under cold temperature at practical levels. On the other hand, no study has been carried out to assess the senescence-related changes in cauliflower during postharvest storage. In this study, fresh cauliflower curds were treated with 6-benzylaminopurine (BAP) at three concentrations (100, 200, or 300 ppm w/v) and its effects on lipid peroxidation, membrane integrity, bioactive molecules, antioxidant activity, soluble sugar, etc. were observed during storage at ambient conditions. BAP profoundly delayed lipid peroxidation and loss of membrane integrity of the tissue, which was associated with the ageing and senescence processes. A positive effect of BAP on maintaining higher bioactive molecules (ascorbic acid and total phenols), antioxidant activity, and soluble sugar was also observed, which was decreased in control curds. A correlation among different quality parameters was also calculated. The results suggested that the maximum storability period for control curds was 6 days, while BAP treated (200 and 300 ppm) curds could be stored with optimal quality and enhanced antioxidant activity up to 12 days at 25 °C.
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