Ecological germination requirements of the aggregate species Teucrium pumilum (Labiatae) endemic to Spain

Ferriol, M.; Pérez, Isabel Blasco; Merlé, Hugo; Boira, Herminio

doi:10.1007/s11104-006-0039-7

Cited by 13 publications

(8 citation statements)

References 27 publications

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“…These specific indexes were chosen as they are the most suitable for local differentiations within the Mediterranean climate type (Ferriol et al 2006).…”

Section: Climatic Analysismentioning

confidence: 99%

Physiological and morphological characterisation of Limonium species in their natural habitats: Insights into their abiotic stress responses

et al. 2020

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Background and aims Morphological and biochemical traits of four halophytes of the genus Limonium were analysed in plants sampled from salt marshes in SE Spain. This work aimed to explore the mechanism(s) behind the adaptation of these species to stressful habitats, with particular emphasis on responses to drought.Methods Plants of each species together with soil samples were collected in summer, which is the most stressful season in the Mediterranean. Soil parameters and plant morphological traits were determined, and the levels of several biochemical stress markers in plants were measured using spectrophotometric assays. A multivariate analysis was performed to correlate soil and plant data. Results Morphological characteristics regarding the underground system topology and several biochemical traits (higher foliar Ca 2+ , sucrose and glucose, and lower proline, glycine-betaine and fructose) clearly separate L. santapolense individuals from plants of the other three species. Conclusions Drought tolerance of L. santapolense in the field is mostly dependent on morphological adaptations: when growing in an arid location, plants of this species develop long taproots that can extract water from the deep, moist layers of the soil.

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“…These specific indexes were chosen as they are the most suitable for local differentiations within the Mediterranean climate type (Ferriol et al 2006).…”

Section: Climatic Analysismentioning

confidence: 99%

Physiological and morphological characterisation of Limonium species in their natural habitats: Insights into their abiotic stress responses

et al. 2020

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“…For E. krendlii especially, the seeds used for experimentation were collected from wild individuals in full fruiting (siliquae valves were clearly opened). Although it has been reported that seeds should be harvested before fully ripe (because they will not grow and will usually die when dehydrated), some species represent exceptions to this rule as their immature seeds germinate quickly and efficiently [26].…”

Section: Discussionmentioning

confidence: 99%

“…Germination tests were performed in plastic Petri dishes (8.5 cm in diameter) lined with two filter papers and moistened with 3 ml distilled water [21]. The criterion of germination was the visible radicle or cotyledon protrusion [22][23][24][25][26]; this was measured daily under stereoscope in semi-darkness for 6 weeks in E. naxense and 5 weeks in E. krendlii, respectively. For both species, the accumulative germination percentages at the end of each week were corrected for seed viability according to the following formula [27]: Viability Adjusted Germination (VAG) percentages which exceeded the value of 100% were fixed to 100%.…”

Section: Seed Germination Experimentsmentioning

confidence: 99%

Effect of temperature and light on seed germination of Erysimum naxense and Erysimum krendlii

Gkika¹,

Krigas

Menexes

et al. 2013

Open Life Sciences

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Seed germination of two local Greek endemics was studied (Erysimum naxense, Erysimum krendlii). Seed viability was determined by using the tetrazolium method and germination was studied in synchronized cycles of five and four alternating temperatures [10/5 (for E. naxense only) and 15/10, 20/15, 25/20, and 30/25°C for both species, in cycles of 16 h day/8 h night], and in five light regimes (red, blue, green, white, and dark). Germination of E. naxense and E. krendlii seeds was determined daily for six and five weeks, respectively, with the data analyzed as viability adjusted accumulative seed germination at the end of each week. E. naxense’s seed viability was higher (90%) than that of E. krendlii (64%); seed germination (%) of both increased at low alternating temperatures (10/5°C, 15/10°C, 20/15°C). Germination of E. naxense seeds at low temperatures was light-independent, whereas at high temperatures it was increased with red light. Germination of E. krendlii seeds was inconsistently affected by light at the temperatures studied. Percentages of seed germination of both species were higher in experimental conditions similar to the ones of their natural habitats during autumn and/or spring (facilitated with Geographic Information Systems). These conclusions provide guidelines for species-specific propagation protocols and ex situ conservation.

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“…Itisfrequenttofindthatinthosepapersin which "gypsophile" is used as a noun , other adjectivesareusedaswelltoexpressthe"gypsum-lover" quality (e.g. Lowrey & al., 1994;Ferriol &al.,2006;Moore&al.,2007;Nesom & al., 2007;Martínez-Duro & al., 2012;Aguirre-Liguori & al., 2014;Dehshiri & Jozipoor, 2014;Porras-Alfaro & al., 2014). Amongthem,"gypsophilous"isthemostused (37%), followed distantly by "gypsophilic" (12%)and"gypsicolous"(2%).Infact,outof22 times that "gypsophyte" and "gypsophile" are used in the same paper, only in tree (Hadjikyriakou & Hand, 2011;Queiroz & al., 2012;Dehshiri & Jozipoor, 2014) there is no Spanishcoauthorpresent.Intwoofthepapers (Escudero &al.,1999;Matesanz&al.,2009), "gypsophyte"and"gypsophile"areusedindistinctlyasnouns.Intwoadditionalones,despite thefactthatinthetexttheterm"gypsophiles"is usedexclusively,itisalsopossibletofind"gypsophytes"amongthekeywords (Palacio&al., 2007;Bolukbasi&al.,2016).OnlyQueiroz& al.(2012considerthat"gypsophytes"isageneralconceptthatcanbesubdividedintwocategories:"gypsophiles"and"gypsovags".…”

Section: Gypsophytes Gypsophiles and Related Termsmentioning

confidence: 99%

“…In fact, using different terms with the root"gypso-"itwouldbepossibletoestablish thedegreeofgypsophily.Startingwiththehighest gypsum preference, there would be those species considered as "gypsophiles" (Table 1), followedby"gypsoclines"(termusedin7%of therevisedpapers;e.g. Meyer,1986;Meyer& al.,1992;Mota&al.,2009;Drohan&Merkler, 2009;Escudero & al., 2015;Robins & al., 2014),followedby"gypsicolous" (Mota&al., 2004(Mota&al., , 2010, "gypsovags" (Meyer, 1986;Escudero & al., 1997;Cerrillo & al., 2002;Ferriol &al.,2006;Palacio&al.,2007;Romão &Escudero,2005),andfinally"gypsophobes" (2%, Meyer,1986;Escudero &al.,2014).The same scale could be used considering other termssuchas:"true","obligate","strict","genuine"or"full"gypsophiles(e.g. Oyonarte &al., 2002;Drohan&Merkler,2009),"preferential", "near" or "sub-gypsophiles" (Meyer, 1986;Cerrillo&al.,2002),"facultative"or"generalist"gypsophiles (Oyonarte&al.,2002;Moore & Jansen, 2007), "waif" or "accidental" gypsophiles (Meyer,1986;Mota&al.,2009)and "non-gypsophiles" (Northington,1976;Mota& al.,2003;Table1).Theterm"gypsophile"can also be found along with other adjectives, althoughnottoindicatethedegreeofgypsophily in a plant species, but other characteristics like its distribution"narrow", "local", "endemic","wide"or"insular"(e.g.…”

Section: Gypsophytes Gypsophiles and Related Termsmentioning

confidence: 99%

Conceptual baseline for a global checklist of gypsophytes

Poveda¹,

Becerra²,

Pérez-García³

et al. 2016

Lazaroa

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Thelinkbetweenplantsandgypsumsoildatesbacktothe19thcentury.Inrecentyears,anincreasingnumberofarticleshavedealtwiththisveryspecialtypeofflorafromvariousperspectives.Theexistenceofcrustsonthe soil,xericityandnutritionalimbalancesthattheseplants-someofwhicharemineralaccumulators-aresubmitted to,haveturnedthemintointerestingsubjectsofstudyatdifferentlevels,fromthemoleculartothebiogeographical andmacroecologicalones.Theseplantsmightrepresentarelevantmodelforresearchonvegetalevolutionandspecialization,duetothehighnumberofendemismsthatconcentrateongypsum,someofthemverylocalandseriously endangeredinmanycases.Asamatteroffact,theHabitatsDirectiveintheE.U.doesnotonlyincludeseveralgypsophilespecies,butitalsoconsidersgypsumoutcropspriorityhabitats.Thecreationofaglobalgypsophyteschecklist may favour the possibility to increase knowledge about this interesting flora further. Nevertheless, as there are manygypsumterritoriesintheworld,theelaborationofsuchalistdemandstheparticipationofanevergrowingnumberofresearchersandlocalexperts.Fouraspectshavebeendeemedofinterestinthisresearchforthecreationofa checklist: Firstly,discussionaboutwhethertoconsider"gypsum-tolerantplant"and"gypsophyte"(gypso-fromtheGreek,gypsumand-phyte,plant)assynonymoustermsornot,ashappenswith"salt-tolerantplant"and"halophyte"(or"salttolerance"and"halophily").Inthesecondplace,thereistheterminologicalquestionthataffectsallthosewordsderived fromtherootgyps-(gypsophile,gypsicolous,gypsovag…)whichshouldbestandardizedsoastofacilitatescientific communication.Thethirdquestionisrelatedtothegypsiferoussoils,ormaybeitwouldbettertocallthemgypsichorizonsasthegypsumcontentsofthesecanbecriticalinordertodiscriminatebetweengypsophytesandplantsthatare notso.Thefourthaspectdealswiththepossibilitytousechemicalcompositionorstoichiometryinordertodiscriminatebetweengypsophytesandtherestofplants,oratleast,todiscriminatebetweentheaccumulativestrategyand othernutritionalstrategies.Finally,afifthaspectremainstobediscussed,highlighting,atleastsuperficially,whichterritories(inthiscase,countries)arethosewheretheputativeexistenceofgypsophilefloraisbelievedtoappear. Havingexaminedthesequestionsthroughtherevisionof91papersresultingfromasearchonScopusitisclearthat gypsum-tolerance and gypsophily cannot be accepted as synonyms. In addition, gypsophytes, at least for the time being,cannotbedefinedinanyotherwaybutresortingtotheclassicalorinductivecriterion,i.e.,plantsgrowingexclusivelyongypsum.Asregardssoils,thelevelofgypsumgypsophilevegetationcantolerateisfrequentlyover50%. Apartfromthat,althoughtheaccumulatorstrategyiscommonamonggypsophytes,especiallyofCaandS,thisisnot atraitthatcanbegeneralized,asisnotthefactthatthesemineralsshouldconcentrateonleaves.Roots,atleastinthe caseofCa,canalsoaccumulatelargequantities.Sofar,researchongypsophilyhasfocusedonaroundtencountries, which is noteworthy when compared to the 75 where references or signs of gysophile flora have been found; this makesitevenmoreinterestingtoelaborateachecklistthatcouldbroadenknowledgeinthisarea.

show abstract

Ecological germination requirements of the aggregate species Teucrium pumilum (Labiatae) endemic to Spain

Cited by 13 publications

References 27 publications

Physiological and morphological characterisation of Limonium species in their natural habitats: Insights into their abiotic stress responses

Physiological and morphological characterisation of Limonium species in their natural habitats: Insights into their abiotic stress responses

Effect of temperature and light on seed germination of Erysimum naxense and Erysimum krendlii

Conceptual baseline for a global checklist of gypsophytes

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