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This study highlights the need to understand more fully the phytochemical properties of Cannabis sativa, which has the potential to act as a ‘spatially aggregating agent’ to form cannabis plants.
Conducting tissues and phyletic relationships of bryophytes.
- R. Ligrone, J. G. Ducket, K. Renzaglia
- BiologyPhilosophical transactions of the Royal Society…
- 29 June 2000
Internal specialized conducting tissues, if present, are restricted to the gametophytic generation in liverworts while they may occur in both generations in mosses. Conducting tissues are unknown in…
The dawn of symbiosis between plants and fungi
- M. Bidartondo, D. Read, J. Trappe, V. Merckx, R. Ligrone, J. Duckett
- BiologyBiology Letters
- 23 August 2011
Evidence is presented that several species representing the earliest groups of land plants are symbiotic with fungi of the Mucoromycotina, raising the possibility that terrestrialization was facilitated by these fungi rather than, as conventionally proposed, by members of the Glomeromycota.
Effects of de- and rehydration on food-conducting cells in the moss Polytrichum formosum: a cytological study.
A cytological study of the effects of de- and rehydration on food-conducting cells in the desiccation-tolerant moss Polytrichum formosum aimed at exploring whether the remarkable subcellular organization of these cells is related to the ability of mosses to survive desicution.
Desiccation tolerance in the moss Polytrichum formosum: physiological and fine-structural changes during desiccation and recovery.
Initial recovery of respiration and photosynthesis is very rapid, and independent of protein synthesis, suggesting physical reactivation of systems conserved intact through desiccation and rehydration, but full recovery takes approx.
Glomeromycotean associations in liverworts: a molecular, cellular, and taxonomic analysis.
- R. Ligrone, A. Carafa, E. Lumini, V. Bianciotto, P. Bonfante, J. Duckett
- BiologyAmerican journal of botany
- 1 November 2007
A worldwide survey of liverwort associations with glomeromycotean fungi (GAs), together with a comparative molecular and cellular analysis in representative species, suggests an ancient origin and multiple more recent losses in liverworts.
Major transitions in the evolution of early land plants: a bryological perspective.
This paper reviews phylogenetic, developmental, anatomical, genetic and paleontological data with the aim of reconstructing the succession of events that shaped major land plant lineages and concludes that bryophytes are the key to a better understanding of the early evolution of land plants.
Bryophyte phylogeny: Advancing the molecular and morphological frontiers
This review of bryophyte evolution includes a re-valuation of the evolution of sperm cells, sporogenesis, stomata, symbioses, conducting cells and chloroplast ultrastructure in hornworts and explores the prospects for future discoveries and advances.
Distribution of cell-wall xylans in bryophytes and tracheophytes: new insights into basal interrelationships of land plants.
LM11 binding in the sporophyte of hornworts, indicating the presence of relatively highly substituted xylans (possibly arabinoxylans), separates these from the other bryophytes and is consistent with recent molecular data indicating a sister relationship of the hornwort with tracheophytes.