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Article: Pealius gallae sp. nov. (Hemiptera: Aleyrodidae) causing leaf pit galls in Celtis philippensis Blanco (Rosales: Cannabaceae) in Andaman Islands, India

Dubey, A. K

Phytoparasitica. 2021 July, v. 49, no. 3

2021

Abstract: A new whitefly species, Pealius gallae sp. nov. forming pit galls on Celtis philippensis Blanco discovered in the Andaman Islands, is described and illustrated. Leaf pit galls were formed in the microhabitat of the puparia, each pit was observed with a ... ...

Abstract	A new whitefly species, Pealius gallae sp. nov. forming pit galls on Celtis philippensis Blanco discovered in the Andaman Islands, is described and illustrated. Leaf pit galls were formed in the microhabitat of the puparia, each pit was observed with a single puparium, the opposite side of the galls was convex, easily recognizable by chlorotic spots; older galls turn brown and brittle. This is the first authentic record with illustrations of any leaf pit gall forming whitefly. The specialised gall inducing insects may pose extinction risks with limited host range. The new whitefly differs from Pealius cinnamomi David and Sundararaj in the habitus, gall forming nature, number of submarginal setae, vasiform orifice shape, broad tracheal folds and pattern of tubercles in it.
Keywords	Celtis ; Pealius ; brittleness ; extinction ; host range ; leaves ; microhabitats ; puparium ; India
Language	English
Dates of publication	2021-07
Size	p. 327-332.
Publishing place	Springer Netherlands
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	188372-0
ISSN	1876-7184 ; 0334-2123
ISSN (online)	1876-7184
ISSN	0334-2123
DOI	10.1007/s12600-021-00884-1
Database	NAL-Catalogue (AGRICOLA)

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Article: Anatomical studies of In vitro raised haploid and diploid citrus plants generated through gamma irradiated pollen

Kundu, Manoj / Dubey, A. K.

Indian journal of horticulture. 2022 June, v. 79, no. 2

2022

Abstract: Histological studies of stem, root and leaf of ovule and embryo cultured haploid and diploid plantlets of Citrus grandis × C. sinensis and Citrus grandis × C. limetta crosses were carried out. Area of xylem and phloem in stem increased gradually with ... ...

Abstract	Histological studies of stem, root and leaf of ovule and embryo cultured haploid and diploid plantlets of Citrus grandis × C. sinensis and Citrus grandis × C. limetta crosses were carried out. Area of xylem and phloem in stem increased gradually with increasing age of explants in both cross combinations; however, it was measured minimum in haploid plantlets (1.95 and 1.62 mm², respectively) as compared to diploid ones. Similar trend was also observed for the area occupied by xylem and phloem in root section of those plantlets. A negative relation was obtained between the ploidy level and per cent area of xylem and phloem within the stem and root of those plantlets. No cuticular and epicuticular wax was observed on the leaf surface in any plantlets irrespective of ploidy level and age of cultured explants, although the leaf thickness increased gradually with the increasing age of the explants with minimum in haploid one. Although, the area of all the parameters evaluated in stem, root and leaf under this experiment were reduced in haploid plantlets but they were well developed and similar to diploid ones which confirmed that these haploid plantlets can also grow normally under open field condition, if intensive care is taken during acclimatization.
Keywords	Citrus maxima ; acclimation ; diploidy ; epicuticular wax ; haploidy ; histology ; horticulture ; leaf thickness ; leaves ; ovules ; phloem ; plantlets ; pollen ; xylem
Language	English
Dates of publication	2022-06
Size	p. 136-144.
Publishing place	Indian Academy of Horticultural Sciences
Document type	Article
ISSN	0974-0112
DOI	10.5958/0974-0112.2022.00019.6
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Production Performance and Fruit Quality of Gamma-Irradiated Mutants of ‘Kinnow’ Mandarin (Citrus nobilis Loureiro × Citrus deliciosa Tenora)

Kumar, Sunil / Awasthi, O. P. / Pandey, Renu / Dubey, A. K. / Sharma, R. M.

Erwerbs-Obstbau. 2023 Apr., v. 65, no. 2 p.379-387

2023

Abstract: The study was performed on selected ‘Kinnow’ mandarin mutants developed through varying doses of gamma irradiation: 15, 20, 25 and 30 Gy. From the varied population, five putative mutants from each treatment were selected to study growth, yield, and ... ...

Abstract	The study was performed on selected ‘Kinnow’ mandarin mutants developed through varying doses of gamma irradiation: 15, 20, 25 and 30 Gy. From the varied population, five putative mutants from each treatment were selected to study growth, yield, and fruit quality over 2 successive years (at the 6th and 7th year of tree age). Plant height and fruit yield were reduced by 49.65% and 65.91% in the mutant G‑20 developed at 30 Gy. Fruit weight and activity of phenyl ammonia-lyase (PAL) and pectin methylesterase (PME) enzymes were observed to differ in mutants. Lower vitamin C content was assayed in the putative mutants as compared to the wild type. The desired low-seeded mutants G‑6 and G‑9 were obtained with an average of between seven and eight seeds/fruit developed at 20 Gy as compared to 31 seeds/fruit in the wild type. The juice recovery percentage in these mutants had parallel values with the wild type. This mutation breeding approach has detected new breeding material exhibiting dwarf plants coupled with higher fruiting intensity, lower number of seeds per fruit, and improved fruit quality. The results revealed that gamma irradiation has the potential to develop ‘Kinnow’ mutants for their commercial exploitation and their use in future breeding programmes.
Keywords	Citrus aurantium var. chrysocarpa ; Citrus nobilis ; ascorbic acid ; fruit quality ; fruit weight ; fruit yield ; fruits ; gamma radiation ; juices ; mutants ; mutation ; pectinesterase ; plant height ; tree age
Language	English
Dates of publication	2023-04
Size	p. 379-387.
Publishing place	Springer Berlin Heidelberg
Document type	Article ; Online
ZDB-ID	519117-8
ISSN	1439-0302 ; 0014-0309
ISSN (online)	1439-0302
ISSN	0014-0309
DOI	10.1007/s10341-023-00832-9
Database	NAL-Catalogue (AGRICOLA)

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Article: Global COVID 19 and agnihotra

Berk, U. / Dubey, A. K.

International Journal of Global Science Research

Abstract: Agnihotra, the basic healing fire of HOMA Therapy, is a small fire prepared in a copper pyramid exactly at sunrise and sunset each day Agnihotra can neutralize the effects of pollution on plants, animals and human beings and at the same time give ... ...

Abstract	Agnihotra, the basic healing fire of HOMA Therapy, is a small fire prepared in a copper pyramid exactly at sunrise and sunset each day Agnihotra can neutralize the effects of pollution on plants, animals and human beings and at the same time give nourishment As this is about Covid-19, a threat to all of humanity, and Agnihotra may be a means to alleviate the ramifications Keywords: Agnihotra, copper pyramid, Mantra, Rice, Dried cow dung, Ghee
Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #822719
Database	COVID19

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Article ; Online: Miniaturized double transit magnetic field measurement probe using the Faraday rotation principle.

Kanchi, Sunil / Shukla, Rohit / Dey, Premananda / Dubey, A K / Sagar, K / Sharma, Archana

Applied optics

2022 Volume 62, Issue 4, Page(s) 1123–1129

Abstract: This paper presents the design and experimental results of a double transit magnetic field measurement probe based on the Faraday rotation principle using terbium doped borosilicate glass as a sensor element. When the magnetic field is applied in the ... ...

Abstract	This paper presents the design and experimental results of a double transit magnetic field measurement probe based on the Faraday rotation principle using terbium doped borosilicate glass as a sensor element. When the magnetic field is applied in the direction of propagation of light through the glass, the Faraday effect produces non-reciprocal circular birefringence. This property of the Faraday effect adds rotations when the light beam is reflected using a mirror placed at the other end of the glass and passed through the glass, making double transit of light through the sensor element. Experiments were carried out to verify the characteristics of the designed probe by inserting it inside the solenoid load coil. The Verdet constant of the glass is determined using the slope of the linear least-squares fitted curve between the Faraday rotation angle and the applied magnetic field, obtained as 89.22
Language	English
Publishing date	2022-11-11
Publishing country	United States
Document type	Journal Article
ISSN	1539-4522
ISSN (online)	1539-4522
DOI	10.1364/AO.479671
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Effect of ionizing radiation on morphological characters and leaf nutrient content of sweet orange cv. Mosambi

Singh, K. / Awasthi, O.P. / Dubey, A. K. / Sharma, V. K. / Kumar, S. / Theivanai, M.

Indian journal of horticulture. 2022 Mar., v. 79, no. 1

2022

Abstract: In the present study, sweet orange cv. Mosambi mutants were developed through treating bud stick with different doses of gamma irradiation (10, 15, 20, 25, 30 and 35 Gray) and budded in situ on Jatti Khatti rootstock. Two years after the establishment of ...

Abstract	In the present study, sweet orange cv. Mosambi mutants were developed through treating bud stick with different doses of gamma irradiation (10, 15, 20, 25, 30 and 35 Gray) and budded in situ on Jatti Khatti rootstock. Two years after the establishment of plants, the impact of ionizing radiations on the mutated population was studied for the alterations in growth and plant nutrient status, showing differential stimulatory and inhibitory dose dependent responses. Mutants developed with lower doses of gamma irradiation stimulated plant height in the mutants GS-3 (39.30 per cent) and GS-8 (40.80 per cent) developed from 15 and 20 Gy, respectively. Contrary to the stimulatory effects, higher irradiation doses inhibited plant height and other growth parameters in the mutants GS-16, GS-30, GS-32 and GS-34 developed from 35 Gy. The macro-nutrient concentrations were higher at lower doses of 10 and 15 Gy in the mutants GS-2, GS-3 and GS-8, while the micro-nutrient contents in the leaf tissue were higher in the mutants GS-21 and GS 14 developed from intermediate doses of 20 and 25 Gy. Although lower accumulation of macro-nutrients was observed at higher dosimetery, however, reverse trend was noticed with respect to the micro-nutrients, being minimum at the lowest dosimetery i.e., 10 Gy.
Keywords	dose response ; gamma radiation ; horticulture ; irradiation ; leaves ; nutrient content ; oranges ; plant height ; plant nutrition ; rootstocks
Language	English
Dates of publication	2022-03
Size	p. 23-29.
Publishing place	Indian Academy of Horticultural Sciences
Document type	Article
ISSN	0974-0112
DOI	10.5958/0974-0112.2022.00004.4
Database	NAL-Catalogue (AGRICOLA)

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Article: Assessing genetic diversity in Indian pummelo collections utilizing quantitative traits and simple sequence repeat markers (SSRs)

Dubey, A. K / Kholia, Anjana / Sharma, Nimisha / Sharma, R. M

Indian journal of horticulture. 2021 Mar., v. 78, no. 1

2021

Abstract: The aim of this study was to characterize 20 Indian pummelo genotypes based on quantitative traits and microsatellite (SSR) markers. Among the fruit quantitative traits, highest coefficient of variation (CV) was recognized for segment numbers (16.64%) ... ...

Abstract	The aim of this study was to characterize 20 Indian pummelo genotypes based on quantitative traits and microsatellite (SSR) markers. Among the fruit quantitative traits, highest coefficient of variation (CV) was recognized for segment numbers (16.64%) followed by core diameter (13.93%), juice recovery (11.20%) and fruit weight (10.88%), while it was quite low for TSS (1.18%) and ascorbic acid (1.83%). The result of the PCA showed that six out of the nineteen principal component axis (PCA) had Eigen-values greater than one, and all together accounted for 63.47 of the total variability. Microsatellite based study revealed that PIC value ranged from 0.56-0.18, being highest from TC26 (0.56) and lowest from AC01 (0.18). The gene diversity ranged from 0 to 1. The heterozygosity ranged from AC01 (0.16) to TC26 (0.47) with an average of 0.31 per locus. The results also indicated that all twenty pummelo genotypes were demarcated into two major clusters A and B according to the UPGMA method.
Keywords	ascorbic acid ; fruit weight ; fruits ; genetic variation ; heterozygosity ; horticulture ; juices ; loci ; microsatellite repeats ; pummelos
Language	English
Dates of publication	2021-03
Size	p. 3-8.
Publishing place	The Horticultural Society of India
Document type	Article
Note	NAL-AP-2-clean
ISSN	0974-0112
DOI	10.5958/0974-0112.2021.00001.3
Database	NAL-Catalogue (AGRICOLA)

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Article: Impact of ionising irradiation on physio-biochemical traits of Kinnow mandarin

Kumar, Sunil / Awasthi, O.P. / Dubey, A.K. / Singh, Awtar / Pandey, Renu

Indian journal of horticulture. 2021 June, v. 78, no. 2

2021

Abstract: In our study, Kinnow mutants developed by exposing bud-wood to gamma rays at a dose range from 15–30Gy showed both stimulatory and inhibitory responses and even within the mutants developed with same dosimetery variations were observed. Irradiation ... ...

Abstract	In our study, Kinnow mutants developed by exposing bud-wood to gamma rays at a dose range from 15–30Gy showed both stimulatory and inhibitory responses and even within the mutants developed with same dosimetery variations were observed. Irradiation exceeding 15Gy augmented the magnitude of radiation advantage for recording the maximum alteration in the physiological and biochemical traits in the putative mutants. Compared to wild type (WT), leaf area was recorded maximum and minimum in the mutants G₆ and G₁₄ developed from 20 and 25Gy. Photosynthetic pigments, chlorophyll a and b were degraded maximum in mutant G₂₀ developed from 30Gy, while total phenol was stimulated in the mutants G₁₈-G₂₀ derived from 30Gy. Proline accumulation was higher in G₁₄ and G₁₅ and total soluble protein (TSP) in G₁₅ developed from 25Gy. Antioxidant enzymes (SOD, CAT, POX and GR) were up-regulated maximum in the mutants generated from a higher dosimetery of 30Gy. Collectively these results confrm the dosimetry effects of irradiation on alteration of physiological and biochemical traits which can be used as a pre-selection criterion for selecting desirable mutants.
Keywords	chlorophyll ; dosimetry ; horticulture ; irradiation ; leaf area ; mandarins ; mutants ; phenols ; photosynthesis
Language	English
Dates of publication	2021-06
Size	p. 149-154.
Publishing place	Indian Academy of Horticultural Sciences(IAHS)
Document type	Article
ISSN	0974-0112
DOI	10.5958/0974-0112.2021.00021.9
Database	NAL-Catalogue (AGRICOLA)

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Article: Long term performance of mango varieties on five polyembryonic rootstocks under subtropical conditions: effect on vigour, yield, fruit quality and nutrient acquisition

Dubey, A.K / Sharma, R.M / Deepak / Kumar, Amrender

Scientia horticulturae. 2021 Apr. 05, v. 280

2021

Abstract: An experiment was conducted to test the hypothesis that uniformity of tree growth, fruit quality and scion physiology are influenced by polyembryonic rootstock, and also deferential vigour behaviour of scion varieties can influence rootstock selection. ... ...

Abstract	An experiment was conducted to test the hypothesis that uniformity of tree growth, fruit quality and scion physiology are influenced by polyembryonic rootstock, and also deferential vigour behaviour of scion varieties can influence rootstock selection. Hence, the scion growth, fruit yield and quality, leaf gas exchange traits and nutrient content of three mango varieties (two moderate vigorous and one dwarf) grafted on five polyembryonic rootstocks were studied during 2015-2019. Rootstocks ‘K-3’ and ‘Olour’ proved vigorous for scion variety ‘Pusa Arunima’, and ‘Kurakkan’ and ‘Olour’ produced robust trees of ‘Pusa Surya. Rootstocks ‘K-2’ and “K-5’ inhibited vigour in both scion varieties ‘Pusa Arunima’ and ‘Pusa Surya’. For ‘Amrapali’ ‘Kurakkan’ induced more tree height (2.95 m) and canopy volume (87.29 m³), while remaining rootstocks were found to be an equal performer. Though inconsistency in fruiting density was observed, overall, K-2 rootstock has induced fruiting density in ‘Pusa Arunima’ (1.78 fruits m³ canopy volume⁻¹) and ‘Pusa Surya’ (4.36 fruits m³ canopy volume⁻¹), while it was K-5 in case of ‘Amrapali’ (4.10 fruits m³ canopy volume⁻¹). Inconsistent results were also obtained for fruit yield due to rootstocks in all three varieties, in general, ‘Kurakkan’, ‘Olour’ and ‘K-3’ enhanced yield tree⁻¹ in all varieties. Differences in fruit weight, stone weight, pulp stone ratio, total soluble solids (TSS) and acidity was mainly influenced by the mango variety. In two of the three mango varieties, the rootstocks 'K-5' and 'Kurakkan' stimulated higher Vitamin C content. In 'Pusa Arunima' and 'Pusa Surya', 'K-2' stimulated lower intercellular CO₂ (Ci), transpiration rate (E) and N, P, K and Ca contents, while in 'Amparali', it stimulated lower photosynthetic rate (A) and N, K and Ca content. On the other hand, leaf P and K also exhibited a higher deviation from the optimum percentage index, while Ca showed lower than optimum in all rootstock scion combinations. Our results indicate that 'K-2' and 'K-5' reduce vertical and lateral growth of all three mango varieties, 'K-3' and 'Kurakkan' rootstocks reduce fruit density, 'K-2' reduces Ci, E, A and leaf nutrient contents, while rootstocks were not capable of modifying fruit quality, except for vitamin C content. Based on results, it could be said that rootstock impacted the scion vigour and fruit yield, but minimal alterations in fruit quality. It could also be inferred that K-2 rootstock imparted dwarfism in ‘Pusa Arunima’ and ‘Pusa Surya’ but failed to modify tree growth in dwarf variety ‘Amrapali’.
Keywords	acidity ; ascorbic acid ; canopy ; carbon dioxide ; dwarf cultivars ; dwarfing ; fruit quality ; fruit weight ; fruit yield ; fruits ; gas exchange ; leaves ; mangoes ; nutrient content ; photosynthesis ; pulp ; rootstocks ; scions ; transpiration ; tree growth ; tree height ; vigor
Language	English
Dates of publication	2021-0405
Publishing place	Elsevier B.V.
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	185557-8
ISSN	0304-4238
ISSN	0304-4238
DOI	10.1016/j.scienta.2021.109944
Database	NAL-Catalogue (AGRICOLA)

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Article: Emerging Pharmaceutical Treatments of Novel COVID-19: A Review

Hussain, A. / Kaler, J. / Dubey, A. K.

Cureus

Abstract: As a new decade began, COVID-19 quickly gained importance as it became the cause of the current global pandemic Research has been focusing on studying the structure of SARS-CoV-2 and investigates possible pharmaceutical approaches With the number of ... ...

Abstract	As a new decade began, COVID-19 quickly gained importance as it became the cause of the current global pandemic Research has been focusing on studying the structure of SARS-CoV-2 and investigates possible pharmaceutical approaches With the number of cases increasing every day, globally, multiple drugs are being researched as possible candidates Although multiple drugs show promise in the treatment of COVID-19 via either inhibiting viral replication or preventing fusion of the virus to the ACE2 receptors, further investigation is still warranted and necessary before the admission of any type of pharmaceutical agent Furthermore, several supplements have also been documented in being utilized as treatment of COVID-19 The exact mechanism and efficacy of current candidate drugs are still being explored through clinical trials Despite the advancements in current research with emerging treatments, social distancing and engaging in preventative measures remains crucial to attempt to prevent the occurrence of more cases and deaths, worldwide This review explores various drugs and their mechanism of action which are either currently being used in clinical trials or may be used in the future for the treatment of COVID-19
Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #619618
Database	COVID19

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