The Sigmoidal Journal
(Formally, the Journal
of Sigmoidal Plant Hydraulics)
I publish here anything I want, as long as I like it !
No review, no hassle !
Editors: Hervé Cochard
ISSN: 2268-4565 edited by Hervé Cochard, INRA, Clermont-Ferrand,
France.
2022
Cochard
H. 2022.
La circulation de l’eau dans la plante. TSJ e009 pdf
Highlight: Un texte de synthèse
sur les recherches actuelles
concernant la circulation de l’eau
dans les plantes.
Cochard
H. 2022.
Water transport in the plant. TSJ e010 pdf
Highlight: A synthesis text on the current research on the circulation of water
in plants.
2020
Cochard
H. 2020.
The fate of forest ecosystems
in the Anthropocene. TSJ
e008 pdf
Highlight: Temperature is expected to increase by +6°C by the end of this century
because of climate change. Although this may seem relatively low, I show that
this change will have a drastic impact on forest ecosystem.
2016
Fournier
M, Cosson JF, Ogliastro M, Vayssier M, Cochard H. 2016.
Une mobilisation belle, utile et partagée contre l' #INRAchutage. TSJ e007 pdf
Highlight: Devant l'annonce de nomination du directeur de cabinet du
Ministre de l'Agriculture à la présidence de l'INRA, un collectif s'est mobilisé
pour donner la parole aux personnels INRA et personnels associés afin qu'ils
puissent s'exprimer sur le parachutage d'une personnalité politique extérieure
au monde de la recherche à la tête d'un Institut de recherche publique.
Cochard
H, Delzon S 2016. La révolution Web
2.0 de l'Edition Scientifique. TSJ
e006 pdf
Highlight: Le système d'édition
scientifique actuel est très largement hérité d'un modèle ancestral né avec
Gutenberg. Ce modèle a joué un rôle clé dans la diffusion de la connaissance et
donc sa progression. Nous faisons le constat que ce modèle arrive aujourd'hui à
bout de souffle en raison de certaines dérives éditoriales récentes. Nous
analysons ici ces dérives et proposons des solutions pour pérenniser une
édition scientifique qui remplisse ses missions aux services de la Science.
Cochard H, Delzon
S 2016. Edit or perish:
The Web 2.0 revolution of the Scientific Edition. TSJ e006 pdf
Highlight: The current scientific publishing
system is largely inherited from an ancestral model born with Gutenberg. This
model has played a key role in the dissemination of knowledge and therefore its
progression. Here, we argue that this model now comes out of breath because of
some recent editorial drifts. We analyze these abuses and propose solutions for
a sustained scientific edition.
2013
Moulia B, Chilliard Y, Forterre Y, Cochard
H, Fournier M, Fontaine S, Girousse C, Badel E, Pouliquen O, Durand JL. 2013. Main
basse sur la science publique: Le «coût de génie» de l’édition scientifique
privée.
TSJ e005 pdf
Highlight: Une transformation du
processus de production dans l’Edition scientifique a conduit à sa
concentration et à la privatisation de la publication par quelques grands
groupes.
Cruiziat P 2013. L’eau et les plantes. 1- Les trois états de l’eau et
leurs changements. TSJ e004 pdf
Plomion C 2013. A forest of sigmoidalistic
monsters: Part 1: phenotypic description. TSJ
e002 pdf
Highlight: This paper describes a series of
genetic monsters created by crossing straight and sigmoid maritime pine trees
Comment: Porté AJ, Le Provost G (2013) Facing the double S hydraulics: a comment on Plomion JSPH-e0002.
TSJ 1: e003 pdf
Cochard H, Delzon S 2013.
Misunderstanding sap ascent in trees. TSJ
e001 pdf
Highlight: Sap ascends
by a risky mechanism in plants but, contrary to what is commonly believed,
hydraulic failure and repair are not routine in plants.
Anonymous comment: If air movement into xylem vessels were in fact a serious problem for
trees then the [study of cavitation resistance] would appear to carry great
promise. However, recent publications throw some serious doubt on the
importance of this subject. [Here the authors claim that] "Contrary to the prevailing view, hydraulic failure and repair are
not routine in trees because, as in suction pumps, cavitation represents too
serious a threat to the mechanism of sap ascent. Trees have a remarkable
ability to construct a plumbing system that is outstandingly resistant to
cavitation events until it is exposed to severe drought conditions”. If
this is so, then air movement into xylem is a rare and unimportant event (see also
Wheeler et al. 2013). In that case, why bother publishing this research? It
seems a bit disingenuous to publish a paper on a topic that one of the
coauthors has just declared to be rare and unimportant. The authors are well
advised to address this issue in a revision of their paper and justify the
importance of their study, if any, in light of Cochard and Delzon
(2013) and Wheeler et al. (2013).
Reply by Cochard & Delzon: Human body temperatures above 41°C
are rare. Shall we conclude that hyperthermia is unimportant and not life
threatening? Why bother measuring the body temperature of our kids then?
Cavitation is rare precisely because plants do their best to avoid this life
threatening process. Understanding how plants avoid cavitation is therefore the
key for understanding their drought tolerance. This is the reason why
scientists around the world study this mechanism.