Madhumita DasguptaUniversity of Tennessee | UTK · Department of Plant Sciences
Madhumita Dasgupta
Ph. D. , Post doc
About
43
Publications
10,746
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233
Citations
Citations since 2017
Introduction
Molecular mechanisms of host pathogen interactions
Additional affiliations
December 2016 - present
Position
- Researcher
Description
- Project title: Functional validation of some up and down regulated defense responsive genes of tomato against bacterial wilt
June 2014 - November 2016
ICAR RESEARCH COMPLEX FOR NEH REGION
Position
- Researcher
Description
- Project Title: Understanding molecular mechanisms of resistance in tomato against bacterial wilt
January 2007 - June 2012
Position
- DBT PDF
Description
- Project Title: Understanding innate immune responses in rice
Education
April 2004 - July 2007
January 2002 - December 2002
June 1999 - July 2001
Publications
Publications (43)
Rapid postharvest physiological deterioration (PPD) in cassava (Manihot esculenta Crantz) tuber is a significant concern during storage. The freshly harvested tubers start spoiling within 24 to 72 h. Accumulation of H 2 O 2 is one of the earliest biochemical events that occurred during PPD, which was detected using the 3,3 diaminobenzidine (DAB) in...
Taro (Colocasia esculenta L. Schott, Araceae), an ancient root and tuber crop, is highly polygenic, polyphyletic, and polygeographic in nature, which leads to its rapid genetic erosion. To prevent the perceived loss of taro diversity, species discrimination and genetic conservation of promising taro genotypes need special attention. Reports on gene...
Commercial interest in the culinary herb, Eryngium foetidum L., has increased worldwide due to its typical pungency, similar to coriander or cilantro, with immense pharmaceutical components. The molecular delimitation and taxonomic classification of this lesser-known medicinal plant are restricted to conventional phenotyping and DNA-based marker ev...
The localization of cuticular wax (CW) on the leaf epidermis and its interaction with the physiological mechanisms of three edible aroids, Alocasia, Colocasia, and Xanthosoma, were assessed. CW in the leaf tissues was visualized using scanning electron microscopy, which was higher in Colocasia (10.61 mg·dm−2) and Xanthosoma (11.36 mg·dm−2) than in...
Localization of cuticular wax (CW) on the leaf epidermis and its interaction with physiological mechanisms of three edible aroids, Alocasia , Colocasia , and Xanthosoma , were assessed. Scanning electron microscopy depicted the occurrence of CW in the leaf tissues, which was higher in Colocasia (10.61 mg dm ⁻² ) and Xanthosoma (11.36 mg dm ⁻² ) tha...
Nutrition-rich extruded snacks were developed from a mixture of cornflour, Bengal gram flour fortified by tree bean (TB) powder (0, 5, and 10%) using a twin-screw extruder. The nutritional, antioxidant, and amino acid profile and structural, functional, and sensory properties of the ready-to-eat (RTE) extruded snacks were evaluated. Ash, protein, a...
Localization of epicuticular wax (EW) content in leaf tissues and its interaction on leaf protective mechanisms of three edible aroids, Alocasia, Colocasia and Xanthosoma were assessed. Scanning electron microscopy depicted the occurrence of EW in leaf tissues which was higher in Colocasia (10.61 mg dm-2) and Xanthosoma (11.36 mg dm-2) than in Aloc...
A protocol for high-frequency direct organogenesis from root explants of Kachai lemon (Citrus jambhiri Lush.) was developed. Full-length roots (~3 cm) were isolated from the in vitro grown seedlings and cultured on Murashige and Skoog basal medium supplemented with Nitsch vitamin (MSN) with different concentrations of cytokinin [6-benzylaminopurine...
The present study aimed to investigate the correlations between the activities of antioxidative enzymes (AOEs) and Phytophthora colocasiae Racib. (Pc) incidence in taro (Colocasia esculenta (L.) Schott) under induced epiphytotic conditions. The activities of AOEs in leaf tissues of taro were increased significantly (up to 7.6-fold) under Pc infesta...
Taro (Colocasia esculenta L. Schott) is one of the important staple vegetable crops grown worldwide for its nutritious corms, leaves, and pseudostems. Taro invaded by leaf blight disease caused by Phytophthora colocasiae Racib. (Pc) resulted in 50% yield loss. On the other hand, inherent defense mechanisms of taro encounter the invaders to protect...
This study made an attempt to develop value added products (bay leaf tea powder, bay leaf saffron tea powder, bay leaf basil tea powder, bay leaf mint sparkle powder, bay leaf spice cubes and bay leaf spice mix) with underutilised forest produce bay leaf. The developed products were evaluated for sensory acceptability and the best acceptable produc...
Influence of polyethylene glycol (PEG) mediated osmotic stress on reactive oxygen species (ROS) scavenging machinery of Chinese potato (Solenostemon rotundifolius (Poir.) J. K. Morton) was investigated. Five genotypes of Chinese potato were raised in Murashige and Skoog (MS) basal medium containing 6–benzylaminopurine (BAP, 1 mg L–1) along with var...
Pathogen secreted cell wall degrading enzymes (CWDEs) induce plant innate immune responses. The expression of rice transcription factor, APETALA2/Ethylene response factor-152 (OsAP2/ERF152) is enhanced in leaves upon treatment with different CWDEs and upon wounding. Ectopic expression of OsAP2/ERF152 in Arabidopsis leads to induction of immune resp...
Garcinia indica commonly known as kokum, has lot of medicinal properties and commercial importance, but the crop remains neglected and hence there is a need to concentrate on diversification and popularization of such underutilized fruits through development of value added products. To take advantage of health promoting properties of Kokum, five di...
Purpose
This study aims to examine the effects of various physical and chemical pre-treatments on antioxidant properties of tree bean ( Parkia roxburghii G. Don) in combination with storage conditions.
Design/methodology/approach
The whole pods and seeds of tree bean were treated with gamma rays ( γ -rays), sodium hypochlorite (NaOCl), chlorine di...
The experiment has been carried out to investigate the proximate composition, mineral contents and radical scavenging activities (RSA) of tree bean (Parkiarox burghii G. Don) seeds and pods owing to microwave cooking and compared with that of traditional cooking. Eventually, proximate, mineral and RSA decreased significantly under both the cooking...
An efficient protocol for direct and indirect shoot regeneration and proliferation from bulb scales of Shirui lily (Lilium mackliniae
Sealy), an endangered Asiatic lily species endemic to the Shirui hill peak, Manipur, India, has been developed. Bulb scales were
isolated from mature bulbs and cultured on Murashige and Skoog (MS) basal medium supple...
Six genotypes of taro (Colocasia esculenta L. Schott) were evaluated under in vitro and in vivo polyethylene glycol (PEG–6000)-mediated osmotic stress conditions. A significant variation in growth response was observed among the taro genotypes under in vitro-induced stress conditions. In vivo results indicated a significant effect of osmotic stress...
Kachai lemon (Citrus jambhiri Lush.) is one of the most potential fruit crops in northeast India. The present study was conducted to improve the nutritional quality of Citrus jambhiri fruits under storage using permissible doses of gamma irradiation at 0.25, 0.5, 0.75 and 1.0 kGy. Proximate content such as moisture, ash, crude fat, crude fibre, cru...
Shirui lily (Lilium mackliniae), an endangered Asiatic lily species, hails from the Shirui peak of Siroi hill range in Ukhrul district of Manipur, India. This rare species is now at the verge of its extinction due to uncontrolled trampling and plucking by the human intrusions and extensive slash and burning cultivation in this region, as a result o...
The changes in some biochemical parameters due to Phytophthora leaf blight infection were assessed in leaf tissues of one resistant (DP-25), two moderately resistant (Duradim and Jhankri) and one susceptible (N-118) genotypes of taro [Colocasia esculenta (L.) Schott]. Phytophthora spore suspension (15 000 spore/ml water) was sprayed onto the in vit...
A secreted cellulase of Xanthomonas oryzae pv. oryzae induces innate immune responses in rice including a hypersensitive response (HR) like reaction. Microarray analysis was conducted
using RNA isolated 12h following ClsA treatment of leaves. BLAST searches were performed for the 267 (152 up- and 115 downregulated)
differentially expressed (≥2-fold...
The effect of Phytophthora leaf blight disease, caused by Phytophthora colocasiae Raciborski, on the accumulation of phenolics and polyphenol oxidase (PPO) activity in ex vitro plants was studied in three resistant (DP-25, Duradim and Jhankri) and one susceptible (N-118) genotypes of taro [Colocasia esculenta (L). Schott]. The inoculation of taro l...
Fifteen genotypes of sweet potato were evaluated for salinity stress tolerance under in vitro NaCl mediated salinity stress
conditions (MS, MS+0.5% and MS+1.0% NaCl). The growth parameters such as number of leaves, number of shoots, number of
roots, length of plantlets and length of roots decreased significantly among the genotypes with increase in...
Fifteen genotypes of sweet potato were evaluated for salinity stress tolerance under in vitro NaCl mediated salinity stress conditions (MS, MS + 0.5% and MS + 1.0% NaCl). The growth parameters such as number of leaves, number of shoots, number of roots, length of plantlets and length of roots decreased significantly among the genotypes with increas...
Correlation studies were undertaken in sixteen diversified accessions of taro (including some tolerant-DP-25 and Duradim and susceptible-N-118 and Megh-19 accessions) for leaf blight disease infection and defence mechanism with yield. Disease incidence such as percentage leaf infection (15.28 to 83.33% and 13.97 to 93.52% at 15 and 30 days after in...
Assessment of the differential expression of antioxidative enzymes and their isozymes, was done in 30 day-old ex vitro raised plants of three highly resistant (DP-25, Jhankri and Duradim) and one highly susceptible (N-118) genotypes of taro [Colocasia esculenta (L.) Schott]. Antioxidative enzymes were assayed in the ex vitro plants, 7 days after in...
Taro hybrid TSL (Topi X Satasankha), along with its parental lines, was evaluated for stress tolerance under in vitro and in vivo polyethelene glycol (PEG) -mediated osmotic stress conditions. Aseptic cultures were raised in vitro under control and PEG-mediated stress conditions. Stress index for survival and growth parameters like rooting ability...
To produce viable somatic embryos from leaf callus of different sweet potato (Ipomoea batatas) geno-types and to enhance somatic embryogenesis, different combinations of benzyladenine (BA), 2,4-dichlo-rophenoxyacetic acid (2,4-D) and the osmotica NaCl, proline and maltose were tested. Callus induced on leaf lamina sections (2-3 mm) on Murashige and...
Projects
Projects (5)
Developed salt tolerant orange fleshed sweet potato genotypes for coastal land cultivation. Four promising salt tolerant sweet potato lines (ST 14, CIP SWA2, 420027, ST 13) are recommended for AICRP trials.
The cellulase enzyme of Xanthomonas oryzae pv. oryzae (Xoo; the causal agent of bacterial blight of rice) induces potent innate immune responses in rice including a hypersensitive response (HR, a plant defense response associated programmed cell death). In order to understand the mechanism by which Xoo cellulase induces innate immunity in rice, Dr. Sonti's lab has performed microarray analysis of rice gene expression changes following treatment with Xoo cellulase. My research was focused on understanding the role of some of highly induced rice genes in innate immunity
In vitro Regeneration and in situ Conservation of Shirui lily (Lilium macklineae), the Rare Endangered and Heritage Flower of Manipur
