Further Investigations on the Occurrence and the Effects of Abscisic Acid in Algae

Tietz, Arno; Ruttkowski, U.; Kohler, Romualdo; Kasprik, W.

doi:10.1016/s0015-3796(89)80011-3

Cited by 61 publications

(54 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ABA seems to be involved in the acquisition of desiccation tolerance and a polypeptide of 60 kDa has been suggested to be a dehydrin in the stress tolerant green alga Dunaliella parva (see Hartung et al, 1994). It is worth mentioning that ABA increase in the culture medium upon salt stress has earlier been observed in the cultures of Draparaldia and Dunaliella (Tietz et al, 1987). However, much remains to be learnt about the possible native role of phytohormones in algae.…”

Section: Growth Substances In Algae and Their Possible Functionmentioning

confidence: 85%

Hormonal regulation in green plant lineage families

Johri

2008

Physiol Mol Biol Plants

View full text Add to dashboard Cite

The patterns of phytohormones distribution, their native function and possible origin of hormonal regulation across the green plant lineages (chlorophytes, charophytes, bryophytes and tracheophytes) are discussed. The five classical phytohormonesauxins, cytokinins, gibberellins (GA), abscisic acid (ABA) and ethylene occur ubiquitously in green plants. They are produced as secondary metabolites by microorganisms. Some of the bacterial species use phytohormones to interact with the plant as a part of their colonization strategy. Phytohormone biosynthetic pathways in plants seem to be of microbial origin and furthermore, the origin of high affinity perception mechanism could have preceded the recruitment of a metabolite as a hormone. The bryophytes represent the earliest land plants which respond to the phytohormones with the exception of gibberellins. The regulation by auxin and ABA may have evolved before the separation of green algal lineage. Auxin enhances rhizoid and caulonemal differentiation while cytokinins enhance shoot bud formation in mosses. Ethylene retards cell division but seems to promote cell elongation. The presence of responses specific to cytokinins and ethylene strongly suggest the origin of their regulation in bryophytes. The hormonal role of GAs could have evolved in some of the ferns where antheridiogens (compounds related to GAs) and GAs themselves regulate the formation of antheridia.During migration of life forms to land, the tolerance to desiccation may have evolved and is now observed in some of the microorganisms, animals and plants. Besides plants, sequences coding for late embryogenesis abundant-like proteins occur in the genomes of other anhydrobiotic species of microorganisms and nematodes. ABA acts as a stress signal and increases rapidly upon desiccation or in response to some of the abiotic stresses in green plants. As the salt stress also increases ABA release in the culture medium of cyanobacterium Trichormus variabilis, the recruitment of ABA in the regulation of stress responses could have been derived from prokaryotes and present at the level of common ancestor of green plants. The overall hormonal action mechanisms in mosses are remarkably similar to that of the higher plants. As plants are thought to be monophyletic in origin, the existence of remarkably similar hormonal mechanisms in the mosses and higher plants, suggests that some of the basic elements of regulation cascade could have also evolved at the level of common ancestor of plants. The networking of various steps in a cascade or the crosstalk between different cascades is variable and reflects the dynamic interaction between a species and its specific environment.

show abstract

Section: Growth Substances In Algae and Their Possible Functionmentioning

confidence: 85%

Hormonal regulation in green plant lineage families

Johri

2008

Physiol Mol Biol Plants

View full text Add to dashboard Cite

show abstract

“…Structural formula of ABA, a sesquiterpene (C15), is presented in Figure 2. ABA was firstly identified by gas chromatography and mass spectrometry (GC-MS) in brown and green algae [55] and is synthesized in plant tissues with free and bound forms. The bound form results from the interaction of an ester of abscisic acid and D-glucose [56].…”

Section: Abscisic Acidmentioning

confidence: 99%

Phytohormones and Effects on Growth and Metabolites of Microalgae: A Review

et al. 2018

View full text Add to dashboard Cite

Microalgae cultivation is booming in agriculture, aquaculture, and bioenergy sectors. A wide range of bioactive compounds with attractive properties can be produced with microalgae, including pigments, vitamins, proteins, carbohydrates, and lipids. The biofuel yields from microalgae can exceed the yields obtained with energy crops by 10-100 times. Therefore, such cultivation is promising for the regulation of the biosynthesis of microalagae with phytohormones, which can enhance the production of high-valued bioproducts. This review reports the effect of auxins, abscisic acid, cytokinins, gibberellins, and ethylene on microalgal growth and metabolites, as well as the crosstalk of different phytohormones. The use of phytohormones is also promising because it can also reduce the inputs necessary to grow the selected microalgae and maximize the yields.

show abstract

“…ABA is released under salt stress from the alga Dunaliella sp. and the cyanobacterium Trichormus variabilis (Kützing) Komárek and Anagnostidis (Tietz et al 1989;Zahradnícková et al 1991).…”

Section: Desiccation-tolerant Plant Evolution Functional Plant Biologymentioning

confidence: 99%

The evolution of desiccation tolerance in angiosperm plants: a rare yet common phenomenon

Gaff

Oliver²

2013

Functional Plant Biol.

187

176

View full text Add to dashboard Cite

Abstract. In a minute proportion of angiosperm species, rehydrating foliage can revive from airdryness or even from equilibration with air of~0% RH. Such desiccation tolerance is known from vegetative cells of some species of algae and of major groups close to the evolutionary path of the angiosperms. It is also found in the reproductive structures of some algae, moss spores and probably the aerial spores of other terrestrial cryptogamic taxa. The occurrence of desiccation tolerance in the seed plants is overwhelmingly in the aerial reproductive structures; the pollen and seed embryos. Spatially and temporally, pollen and embryos are close ontogenetic derivatives of the angiosperm microspores and megaspores respectively. This suggests that the desiccation tolerance of pollen and embryos derives from the desiccation tolerance of the spores of antecedent taxa and that the basic pollen/embryo mechanism of desiccation tolerance has eventually become expressed also in the vegetative tissue of certain angiosperm species whose drought avoidance is inadequate in microhabitats that suffer extremely xeric episodes. The protective compounds and processes that contribute to desiccation tolerance in angiosperms are found in the modern groups related to the evolutionary path leading to the angiosperms and are also present in the algae and in the cyanobacteria. The mechanism of desiccation tolerance in the angiosperms thus appears to have its origins in algal ancestors and possibly in the endosymbiotic cyanobacteria-related progenitor of chloroplasts and the bacteria-related progenitor of mitochondria. The mechanism may involve the regulation and timing of the accumulation of protective compounds and of other contributing substances and processes.

show abstract

Further Investigations on the Occurrence and the Effects of Abscisic Acid in Algae

Cited by 61 publications

References 17 publications

Hormonal regulation in green plant lineage families

Hormonal regulation in green plant lineage families

Phytohormones and Effects on Growth and Metabolites of Microalgae: A Review

The evolution of desiccation tolerance in angiosperm plants: a rare yet common phenomenon

Contact Info

Product

Resources

About