a b s t r a c tTerminalia citrina (gaertn.) roxb. ex Fleming synonym Terminalia multiflora Merr. is commonly known as Yellow Myrobalan and Manahei in Manipuri. It is highly medicinal plant which is distributed in north east India and car nicobar Island. Its bark is diuretic and cardio tonic and fruits are used similar to Terminalia chebula and used in various drug preparations, which are sometimes adulterated with other plant materials. In order to standardize the drug, detail morphological, anatomical (t.s. of bark, petiole and leaf; t.s., t.l.s. and r.l.s. of wood and maceration of bark and wood) and dermatological studies were undertaken.T.S. of bark showed peculiarities as-bundles of fibre and patches of stone cells, compound crystals and compound starch grains. Maceration of bark showed unique branched phloem fibres, and thin and thick walled phloem parenchyma and various crystals. t.s. of bark showed Vessels in groups of 2-9. Parenchymatous rays mostly uniseriate, rarely biseriate, heterogenous with deposition of starch grains. Maceration of wood reveled the diagnostic features like-pitted xylem parenchyma, branched xylem fibres with pits, various types of vessel elements with oblique end walls with or without long beaks, pits alternate. tracheids tubular, thick walled with small and few pits.It was observed that Terminalia citrina (gaertn.) roxb. ex Fleming can be easily standardized on the basis of combination of these parameters which are peculiar to this species.
Iris laevigata Fisch., is restricted geographically in Manipur, north eastern India. An experiment was planned with Factorial Randomized Block Design during 2018 to 2020 (3 seasons) in the study plots of ICAR Research Complex for NEH Region, Manipur Centre, Lamphelpat. The study encompasses on the growth and development of I. laevigata seedlings collected from Ipa Thoukok Complex: influenced by spacing, trimming and correlations amongst the growth parameters, so as to validate the most favourable conservation method for this endangered plant. Among the treatments, T6 = S2T3 (45 cm × trimming 40 DAT) was found the best treatment. T9 = S3T3 (60 cm × trimming 40 DAT) was second, T3 = S1T3 (30 cm × trimming 40 DAT) was the third and lowest was found in case of T1 = S1T1 (30 cm × 0 trimming, i.e., without trimming). Strong positive correlation between leaf surface area and plant height on the growth and development was found to be effective among other correlations.
The genus Tephrosia, is widely distributed in many tropical and subtropical countries of the world and have been used in folk medicine for the treatment of large number of diseases. Present investigation was undertaken in order to analyse bioactive constituents present in Tephrosia purpurea by using High Resolution-Liquid Chromatography-Mass Spectrometry (HR-LCMS). The study revealed the presence of secondary metabolites like alkaloid (23-Acetoxysoladulcidine), Flavonoids (5,3'-Dihydroxy-2,4-dimethoxyydalbergiquinol), retinoids (16-Hydroxy-4-carboxyretinoic acid) Coumarin (1-Oxo1H2benzopyran3carboxaldehyde), cyanoguanidine (Pinacidil), stilbenoid, (Demethylbatatasin IV) Sesquiterpenoid, (13Hydroxy5'Omethylmelledonal), germacranolide (Molephantinin) and Phenolic compounds in the selected medicinal plants.
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