Algae extracts are an excellent source of chemical fertilizers (NPK) and plant growth promoters such as auxins, cytokinins, betaine, gibberellins, amino acids, macronutrients, microelements, organic matter that improve productivity. The investigation was performed at 2019-2020 through winter seasons, in sandy soil Ismailia Agricultural Research Station greenhouse. To investigate the impact nume...

in order to micropropagate of four vigorous rootstocks of pear, including pyrus betulifolia, konjuni, dargazi and gh1, effects of basic plant culture media (ms, ql and modified ql), cytokinins and auxins on productivity, proliferation and rooting were studied in seed and plant improvement institute, karaj. the highest amount of productivity for all rootstocks was observed in ql medium. among pe...

Embryogenic callus was induced from culturing immature embryos of three barley cvs. Dissa, Golden Promise and Igri. Maximum embryogenic callus formation was achieved by culturing immature embryos on CC and LS medium containing 2 mg/litre and 2.5 mg/litre 2,4dichlorophenoxyacetic acid (2,4-D) respectively. Embryogenic calli were frequently produced distinguished somatic embryos on these medium. ...

in vitro propagation of rose (rosa indica) as well as rose breeding is a valuable economic enterprise and has received highest importance globally including indian subcontinent. the development of new cultivars for commerce is faced with new challenges. in vitro micropropagation protocols of varieties of roses have been established but very few reports on the clonal propagation of local cultiva...

Rouhier N, Koh CS, Gelhaye E, Corbier C, Favier F, Didierjean C, Jacquot JP. 2008. Redox based anti-oxidant systems in plants: biochemical and structural analyses. Biochimica and Biophysica Acta 1780: 1249–1260. Shetty NP, Mehrabi R, Lütken H, Haldrup A, Kema GH, Collinge DB, Jørgensen HJ. 2007. Role of hydrogen peroxide during the interaction between the hemibiotrophic fungal pathogen Septoria...

Brassinosteroids (BRs) are essential phytohormones regulating normal plant growth and development. TCP1, a gene thought to be involved in floral organ symmetric control, was identified as a genetic suppressor of a weak BR receptor mutant, bri1-5, in an activation-tagging genetic screen. TCP1 encodes a putative transcription factor possessing a basic helix-loop-helix domain. The dominant allele ...

Shoot organogenesis and plant establishment has been achieved for Balanites aegyptiaca (L.) Del. from excised root explants. Young root explants obtained from 4 weeks old aseptic seedlings were used for the induction of direct shoot regeneration by incorporating various cytokinins either singly or in combination with auxins in Murashige and Skoog (MS) basal medium. Root explants cultured on MS ...

The roots and stems of dicotyledonous plants thicken by the cell proliferation in the cambium. Cambial proliferation changes in response to environmental factors; however, the molecular mechanisms that regulate cambial activity are largely unknown. The quadruple Arabidopsis thaliana mutant atipt1;3;5;7, in which 4 genes encoding cytokinin biosynthetic isopentenyltransferases are disrupted by T-...

Plant growth and response to environmental cues are largely governed by phytohormones. The plant hormones ethylene, jasmonic acid, and salicylic acid (SA) play a central role in the regulation of plant immune responses. In addition, other plant hormones, such as auxins, abscisic acid (ABA), cytokinins, gibberellins, and brassinosteroids, that have been thoroughly described to regulate plant dev...