Meristematic characteristics of tumors initiated by Agrobacterium tumefaciens in pea plants

Vinogradova, A. P.; Lebedeva, Maria A.; Лутова, Л. А.

doi:10.1134/s1022795415010123

Cited by 10 publications

(9 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Expression level of FviWUS increased about five times in the galls at stage 3; at stage 4, its expression also decreased. It is interesting that activation of the expression of FviWOX4 homologues, pea PsWOX4 and radish RsWOX4 , was detected in other types of plant tumours like the spontaneous tumours in radish inbred lines as well as in crown galls which are induced by Agrobacterium tumefaciens (Vinogradova et al, ; Gancheva, unpublished data). The increase of their expression takes place during the development of embryogenic callus (Su et al, ), whereas WUS ectopic expression activates cell divisions in differentiated tissues in Arabidopsis (Zhang et al, ).…”

Section: Resultsmentioning

confidence: 99%

“…Genes encoding homeodomain transcription factors of WOX and KNOX families . According to the literature, WOX and KNOX transcription factors are essential for meristem activity, embryogenesis and leaf development (Tsuda & Hake, ; Dolzblasz et al, ), as well as for the development of novel organs and neoplasms that either arise spontaneously or are induced by pathogens and symbionts in different plant species (Lutova et al, ; Testone et al, ; Osipova et al, ; Azarakhsh et al, ; Lebedeva et al, ; Vinogradova et al, ). The functions of WOX transcription factors in the meristems consist of the maintenance of stem cells in undifferentiated state; e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gall mite Fragariocoptes setiger (Eriophyoidea) changes leaf developmental program and regulates gene expression in the leaf tissues of Fragaria viridis (Rosaceae)

Paponova

Chetverikov

Pautov

et al. 2017

Annals of Applied Biology

View full text Add to dashboard Cite

The interaction of plants with certain types of parasites leads to the formation of galls, organised structures that create the habitat of the parasite, caused by an abnormal proliferation of host plant's cells under the influence of growth regulators, secreted by the parasite, or by the plant itself under the influence of the parasite. Arthropods, mites in particular, are the largest group of gall-inducing phytoparasites, but the mechanisms of their interaction with plants remain virtually unexplored. The interaction of the gall-inducing eriophyoid mite Fragariocoptes setiger with Fragaria viridis plants was used as a model gall-mite system where data were obtained on the changes in the histological structure of F. viridis leaf blades under the influence of the mites as well as F. viridis gene expression during gall formation. For histological purposes, gall formation was split into four stages with each corresponding to the age of the gall as well as to specific changes that occur during that period. A dramatic change of adaxial-abaxial polarity of the lamina throughout the four stages was observed. Moreover, qRT-PCR analysis of F. viridis gene expression in the developing gall revealed changes in the expression levels of certain meristem-specific genes, as well as the genes that determine adaxial-abaxial polarity and signalling of phytohormones. Petersburg State University and the resource centre of the Komarov Botanical Institute of RAS.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gall mite Fragariocoptes setiger (Eriophyoidea) changes leaf developmental program and regulates gene expression in the leaf tissues of Fragaria viridis (Rosaceae)

Paponova

Chetverikov

Pautov

et al. 2017

Annals of Applied Biology

View full text Add to dashboard Cite

show abstract

“…Although ectopic expression of WOX genes does not lead to spontaneous cell dedifferentiation, an increase in WOX gene expression levels is required for de novo meristem induction. For example, ectopic expression of the WUS gene causes somatic embryogenesis in explants [56]; activation of WOX5 expression in certain groups of pericycle cells occurs at the initiation of lateral and adventitious root meristems [57] and nitrogen fixing nodules in legumes [58], as well as tumors induced by A. tumefaciens [59] and spontaneous tumors in the inbred radish [60] (Fig. 2).…”

Section: Wox Tfs and Meristem Developmentmentioning

confidence: 99%

“…Thus, it is suggested that emergence of a new plant organ, a nodule, as a result of plantmicrobe interactions was possible by extending the functions of both WOX5 TF and superposed regula tory systems. It was recently demonstrated that WOX5 expression activation was characteristic of other types of plant-microbe interactions, in particular, the inter action of plants with parasitic tumor inducing bacte ria Agrobacterium tumefaciens [59].…”

Section: The Main Trends In Evolution Of Wox Tfsmentioning

confidence: 99%

Transcription factors in developmental genetics and the evolution of higher plants

et al. 2015

Self Cite

View full text Add to dashboard Cite

Transcription factors play an essential role in controlling various developmental programs in plants, coordinating the action of any genetic network. Among the most important groups of plant transcrip tion factors are the homeodomain containing transcription factors, in particular, those belonging to the KNOX and WOX families, the functions of which are associated with regulation of the meristem activity, development of the aboveground and underground parts of plants, and control of embryogenesis. This review examines the role of KNOX and WOX transcription factors in various developmental programs, as well as in the evolutionary complication of the body plan in terrestrial plants.

show abstract

“…В зрелых клубеньках (21-28 дней после индукции) WOX5 экспрессируется только в нескольких клетках на конце сосудистого пучка клубенька. Развитие опухолей растений гороха, вызывае-мых бактерией Agrobacterium tumefaciens, также связано с увеличением экспрессии WOX5 в клетках опухоли (Vinogradova et al, 2015). Таким образом, экспрессия WOX5 у других видов, как и у арабидопсиса, может быть связана с репрограммированием, т. е. изменением пути дифференцировки клетки.…”

Section: паттерн экспрессии Wox5 у других видов растенийunclassified

Systems biology analysis of the WOX5 gene and its functions in the root stem cell niche

Oshchepkova¹,

Омельянчук²,

Савина³

et al. 2016

Vestn. VOGiS

View full text Add to dashboard Cite

WUSCHEL RELATED HOMEOBOX 5 (WOX5) gene en codes the transcription factor, which is one of the key regulators, maintaining structure and functioning of the stem cell niche in plant root tips. Protein WOX5 is expressed in the quiescent center of the root apical meristem, preventing differentiation of columella initials and altogether with SCR, SHR, PLT1 and PLT2 participating in the control of differentiation of other root meristem initials. However, the details of WOX5 functioning are unclear. The WOX5 protein belongs to WUSCHEL related homeobox (WOX) family, the founder of which is the transcription factor WUSCHEL (WUS) providing maintenance of the stem cell niche in the shoot apical meristem. WOX5 and WUS diver ged from a common ancestor at the base of angiosperms, which resulted in a spe cialization of shoot and root stem cell niches. How ever, the problem of WOX5 structural and functional divergence during angiosperm evolution was poorly addressed. In this review we present a systems bio logy analysis of the WOX5 gene to reveal specific features of its evolution and functioning. To this end, we performed a phylogenetic analysis on 62 publicly available WOX5 amino acid sequences, generalized published data about WOX5 expression domain in Arabidopsis and other species and its role in deve lopment, integrated the results of experiments on identification of primary and secondary targets for this transcription factor. Data on possible mecha nisms of direct and indirect regulation of WOX5 expression were discussed. Particularly, we per form ed the analysis of WOX5 promoter regions from 30 species. Possible direct regulators of the WOX5 gene expression were proposed based on the presen ce Ген WUSCHEL RELATED HOMEOBOX 5 (WOX5) кодирует транскрип ци онный фактор, который является одним из основных регуляторов поддержания структуры и функционирования ниши стволовых клеток в кончике корня растений. Белок WOX5 экспрессируется в клетках покоящегося центра апикальной меристемы корня, предотвращая дифференцировку прилегающих к нему инициа лей колумеллы и участвуя наряду с SCR, SHR, PLT1, PLT2 в контроле дифференцировки других инициалей меристемы корня. Однако детали механизмов функционирования этого белка неясны. WOX5 относится к семейству WUSCHEL related homeobox (WOX), родоначальник которого, транскрипционный фактор WUSCHEL (WUS), обеспечивает поддержание ниши стволовых клеток в меристеме побега. Считается, что ген WOX5 дивергировал от общего с WUS предка у древних покрытосеменных, в резуль тате чего произошла специализация ниш стволовых клеток побега и корня. Однако вопрос дальнейшей дивергенции структуры и функций WOX5 в процессе эволюции цветковых растений изучен слабо. В данном обзоре представлен системно биологический анализ гена WOX5 с целью выявления особен но с тей его эволюции и механизмов функционирования. Для этого в работе прове ден филогенетический анализ 62 аминокислотных последовательностей WOX5 из публично доступных баз данных, обобщены ли те ратурные данные о домене экспрессии WOX5 у арабидопсиса и других...

show abstract

Meristematic characteristics of tumors initiated by Agrobacterium tumefaciens in pea plants

Cited by 10 publications

References 44 publications

Gall mite Fragariocoptes setiger (Eriophyoidea) changes leaf developmental program and regulates gene expression in the leaf tissues of Fragaria viridis (Rosaceae)

Gall mite Fragariocoptes setiger (Eriophyoidea) changes leaf developmental program and regulates gene expression in the leaf tissues of Fragaria viridis (Rosaceae)

Transcription factors in developmental genetics and the evolution of higher plants

Systems biology analysis of the WOX5 gene and its functions in the root stem cell niche

Contact Info

Product

Resources

About