02660nas a2200241 4500008004100000022001400041245022700055210006900282260000900351520169200360653002002052653001002072653002202082653002602104653001902130653002602149100001802175700002602193700002902219700002402248700002002272856012602292 2020 eng d a0721-759500aCombinatorial approach through in vitro regeneration and phytochemical profiling of ceropegia media (huber) ans.: a potential way forward in the conservation of an endangered medicinal plant from the western ghats in India0 aCombinatorial approach through in vitro regeneration and phytoch cJUN 3 a

Ceropegia mediais an endemic and endangered plant as its propagation through seeds is unreliable due to low germination, slow growth and seedling decay under natural conditions. Also, tubers of this plant are edible serving as carbohydrate source with medicinal values leading to severe population decline in the natural habitat. To provide a sustainable solution, an efficient in vitro propagation protocol along with phytochemical profiling was developed forC. media. Callus cultures were induced from seedling and wild leaf tissues using the most effective Murashige and Skoog's (MS) medium with 2,4-dichlorophenoxyacetic acid (2,4-D; 2 mu M) and sucrose (3%). Somatic embryos were acquired on MS medium with 1 mu M 6-Benzylaminopurine (BAP) and 1 mu M 2,4-D. Conversion into plantlets was attained only from tissue culture-derived seedling leaf (TCDSL) explant. Further, in vitro tuberization was achieved from TCDSL callus with BAP and Naphthalene acetic acid (NAA). AgNO(3)as an elicitor had a positive effect on both fresh and dry weights of callus. Successful acclimatization (58%) was attained after two months resulting in normal phenotype in pots. Further, metabolite profiles of ten different tissues from wild and in vitro plants were compared. Total 82 compounds comprising alkaloids, fatty acids, fatty acid ester, steroids, terpenes and hydrocarbons were identified. Overall, results suggested enhanced production of selected metabolites with in vitro propagation and AgNO3, alleviating the problem of unavailability of planting materials. Thus, the current study might offer potential ways for the conservation of such RED enlisted species asC. media. [GRAHICS]

10aCeropegia media10aGC-MS10aMicrotuberization10aSecondary metabolites10aSilver nitrate10asomatic embryogenesis1 aPandey, Meena1 aDholakia, Bhushan, B.1 aJayaramaiah, Ramesha, H.1 aPunekar, Sachin, A.1 aGiri, Ashok, P. uhttp://library.ncl.res.in/content/combinatorial-approach-through-vitro-regeneration-and-phytochemical-profiling-ceropegia01816nas a2200229 4500008004100000022001400041245014200055210006900197260000800266300001400274490000700288520096300295653002501258653001801283653003101301653002601332653002601358100003101384700002201415700002501437856012401462 2021 eng d a2214-785300aSynthesis of gold and silver nanoparticles using Phlogacanthus Thyrsiformis extracts-its phytochemical screening and anti-oxidant studies0 aSynthesis of gold and silver nanoparticles using Phlogacanthus T cJAN a2805-28090 v433 a

Phlogacanthus Thyrsiformis is a shrub belonging to the Acanthaceae family, normally found in the northeastern parts of India, Nepal, Burma, Indo-Chinese region and Indonesia. It is used as a cure for diarrhoea, dysentery, cholera, burns, boils, high blood pressure, sprains and body pains. Silver and gold nanoparticles were synthesized from the extracts of the leaves of this plant as the some biomolecules, known as secondary metabolites, present in plant extracts can be used to reduce metal ions to nanoparticles. The contents of the leaves were extracted in various solvents and the tests for the presence of secondary metabolites were carried out. The gold and silver nanoparticles synthesized using the plant extracts and characterized using TEM, SEM techniques and the phytochemical screening tests were done for different extracts. The anti-oxidant studies of the several extracts were carried out. (C) 2020 Elsevier Ltd. All rights reserved.

10aAnti-oxidant studies10aNanoparticles10aPhligacanthus thyrsiformis10aPhytochemical Studies10aSecondary metabolites1 aSingh, Avinash, Thounaojam1 aShaikh, Iqbal, N.1 aRale, Madhura, Vijay uhttp://library.ncl.res.in/content/synthesis-gold-and-silver-nanoparticles-using-phlogacanthus-thyrsiformis-extracts-its02568nas a2200349 4500008004100000245011600041210006900157260000800226300000900234490000700243520144900250653001801699653001501717653001601732653002601748100001501774700001901789700003101808700001701839700002101856700001901877700001701896700002501913700002001938700001901958700001901977700002701996700002602023700001802049700002602067856012502093 2023 eng d00aRhizospheric bacillus spp. exhibit miticidal efficacy against oligonychus coffeae (Acari: Tetranychidae) of tea0 aRhizospheric bacillus spp exhibit miticidal efficacy against oli cNOV a26910 v113 a

Oligonychus coffeae (Acari: Tetranychidae), popularly known as red spider mite (RSM) is one of the major pests of commercial tea (Camellia sinensis (L.) O. Kuntze) plantation world over. Many attempts have been made in the past to control this devastating pest using a variety of microbial bioagents, however, area-wise field success is very limited. We carried out an in vitro study to explore the potential of rhizospheric Bacillus spp. (B. amyloliquefaciens BAC1, B. subtilis LB22, and B. velezensis AB22) against O. coffeae through adulticidal and ovicidal activity. The 100% adult and egg mortality was observed with bacterial suspension (1 x 10(9 )CFU/mL) by B. velezensis AB22, showing the lowest LC50 values for both adults and eggs of O. coffeae, i.e., 0.28 x 10(5) and 0.29 x 10(5), respectively. The study also throws some insights into the underlying mechanism through electron microscopy study and identification of some putative pesticidal metabolites from all the species. The three Bacillus species were observed to have four commonly secreted putative bioactive secondary metabolites, brevianamide A, heptadecanoic acid, thiolutin, and versimide responsible for their bio-efficacy against O. coffeae. The outcome of our study provides a strong possibility of introducing Bacillus spp. as a biological miticide and developing synthetic metabolites mimicking the mechanistic pathway involved in microbial bioefficacy.

10aBacillus spp.10aBiocontrol10aorganic tea10aSecondary metabolites1 aBora, Popy1 aGogoi, Sukanya1 aDeshpande, Mukund, Vinayak1 aGarg, Pankaj1 aBhuyan, Rana, P.1 aAltaf, Nilofar1 aSaha, Nikita1 aBorah, Sapna, Mayuri1 aPhukon, Mousumi1 aTanti, Nabajit1 aSaikia, Bishal1 aAhmed, Shenaz, Sultana1 aBorah, Sanjib, Ranjan1 aDutta, Ashish1 aSarmah, Bidyut, Kumar uhttp://library.ncl.res.in/content/rhizospheric-bacillus-spp-exhibit-miticidal-efficacy-against-oligonychus-coffeae-acari03187nas a2200241 4500008004100000022001400041245011800055210006900173260000800242300001400250490000700264520231600271653002502587653002102612653002802633653002302661653002602684653002802710100002102738700002702759700003002786856012902816 2024 eng d a1139-670900aGenome sequencing and analysis of penicillin V producing Penicillium rubens strain BIONCL P45 isolated from India0 aGenome sequencing and analysis of penicillin V producing Penicil cOCT a1473-14840 v273 a

Background A filamentous fungus Penicillium rubens is widely recognized for producing industrially important antibiotic, penicillin at industrial scale. Objective To better comprehend, the genetic blueprint of the wild-type P. rubens was isolated from India to identify the genetic/biosynthetic pathways for phenoxymethylpenicillin (penicillin V, PenV) and other secondary metabolites. Method Genomic DNA (gDNA) was isolated, and library was prepared as per Illumina platform. Whole genome sequencing (WGS) was performed according to Illumina NovoSeq platform. Further, SOAPdenovo was used to assemble the short reads validated by Bowtie-2 and SAMtools packages. Glimmer and GeneMark were used to dig out total genes in genome. Functional annotation of predicted proteins was performed by NCBI non-redundant (NR), UniProt, Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Ontology (GO) databases. Moreover, secretome analysis was performed by SignalP 4.1 and TargetP v1.1 and carbohydrate-active enzymes (CAZymes) and protease families by CAZy database. Comparative genome analysis was performed by Mauve 2.4.0. software to find genomic correlation between P. rubens BIONCL P45 and Penicillium chrysogenum Wisconsin 54-1255; also phylogeny was prepared with known penicillin producing strains by ParSNP tool. Results Penicillium rubens BIONCL P45 strain was isolated from India and is producing excess PenV. The 31.09 Mb genome was assembled with 95.6% coverage of the reference genome P. chrysogenum Wis 54-1255 with 10687 protein coding genes, 3502 genes had homologs in NR, UniProt, KEGG, and GO databases. Additionally, 358 CAZymes and 911 transporter coding genes were found in genome. Genome contains complete pathways for penicillin, homogentisate pathway of phenyl acetic acid (PAA) catabolism, Andrastin A, Sorbicillin, Roquefortine C, and Meleagrin. Comparative genome analysis of BIONCL P45 and Wis 54-1255 revealed 99.89% coverage with 2952 common KEGG orthologous protein-coding genes. Phylogenetic analysis revealed that BIONCL P45 was clustered with Fleming's original isolate P. rubens IMI 15378. Conclusion This genome can be a helpful resource for further research in developing fermentation processes and strain engineering approaches for high titer penicillin production.

10acomparative genomics10aIllumina NovoSeq10aPenicillin biosynthesis10aPenicillium rubens10aSecondary metabolites10awhole genome sequencing1 aSawant, Amol, M.1 aNavale, Vishwambar, D.1 aVamkudoth, Koteswara, Rao uhttp://library.ncl.res.in/content/genome-sequencing-and-analysis-penicillin-v-producing-penicillium-rubens-strain-bioncl-p4502000nas a2200253 4500008004100000022001400041245012600055210006900181260000800250300001100258490000800269520115500277653001401432653001201446653001601458653001601474653001401490653002601504100002401530700002201554700002901576700002001605856012101625 2025 eng d a0141-813000aMYB proteins: Versatile regulators of plant development, stress responses, and secondary metabolite biosynthetic pathways0 aMYB proteins Versatile regulators of plant development stress re cFEB a1385880 v2883 a

MYB proteins are ubiquitous in nature, regulating key aspects of plant growth and development. Although MYB proteins are known for regulating genes involved in secondary metabolite biosynthesis, particularly phenylpropanoids, their roles in terpenoid, glucosinolate, and alkaloid biosynthesis remain less understood. This review explores the structural and functional differences between activator and repressor MYB proteins along with their roles in plant growth, development, stress responses, and secondary metabolite production. MYB proteins serve as central hubs in protein-protein interaction networks that regulate expression of numerous genes involved in the adaptation of plants to varying environmental conditions. Thus, we also highlight key interacting partners of MYB proteins and their roles in these adaptation mechanisms. We further discuss the mechanisms regulating MYB proteins, including autoregulation, epigenetics, and post-transcriptional and post-translational modifications. Overall, we propose MYB proteins as versatile regulators for improving plant traits, stress responses, and secondary metabolite production.

10aActivator10adefense10aDevelopment10aMYB protein10aRepressor10aSecondary metabolites1 aBhatt, Preshita, A.1 aGurav, Tanuja, P.1 aKondhare, Kirtikumar, R.1 aGiri, Ashok, P. uhttp://library.ncl.res.in/content/myb-proteins-versatile-regulators-plant-development-stress-responses-and-secondary