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rhizosheaths

Spanish translation: rizovainas, rizocorazas

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:rhizosheaths
Spanish translation:rizovainas, rizocorazas
Entered by: Kepa S S O (X)

22:04 Oct 2, 2015
English to Spanish translations [PRO]
Science - Agriculture / biochemistry
English term or phrase: rhizosheaths
Saludos
Para la traducción apropiada.
De antemano gracias.

Our suggestion of a bimodal distribution of rhizosphere hydraulic properties is partly an analogy to the observations of McCully and co-workers (Vermeer and McCully, 1982; Wang et al., 1991; Watt et al., 1994), who observed bimorphic behaviour for grass roots, in particular corn roots. They distinguished between sheathed roots and bare roots. The formation of sheaths around roots (rhizosheaths) is closely linked to the presence of mucilage, and sheathed roots are reported to show higher water content compared with bare roots. As roots develop, rhizosheath develops around young roots about 2 cm behind the tips, and sheath is lost as root age increases. Loss of soil sheath coincides with the maturation of late metaxylem vessels (Wang et al., 1991).


Soil sheaths incorporating aggregated soil particles surround young roots of many species, but the effects of such sheaths on water movement between roots and the soil are largely unknown. The quantity and location of root exudates associated with soil sheath along the entire length of its young roots, except within 1.4 cm of the tip. The soil sheaths, which average 0.7 mm in thickness, were composed of soil particles and root hairs, both of which were covered with exuded mucilaginous material. As determined with a [sup 14]C pulse-labeling technique, 2% of newly fixed [sup 14]C-photosynthate was translocated into the roots at 3d, 6% at 9 d, and 8% at 15 d after labeling. The fraction of insoluble [sup 14]C in the roots increased twofold from 3 d to 15 d. Over the same time period, 6%-9% of the [sup 14]C translocated to the roots was exuded into the soil. The soluble [sup 14]C compounds exuded into the soil were greater in the 3-cm segment at the root tip than elsewhere along the root, whereas mucilage was exuded relatively uniformly along roots 15 cm in length. The volumetric efflux of water increase for both sheathed and unsheathed roots as the soil water potential decreased form -0.1 MPa to -1.0 MPa. The efflux rate was greater for unsheathed roots than for sheathed roots, which were more turgid and had a higher water potential, especially at lower soil water potentials. During drying, soil particles in the sheaths aggregate more tightly, making the sheaths less permeable to water and possibly creating air gaps. The soil sheaths of O. ficus-indica thus reduce water loss from the roots to a drying soil.
Kepa S S O (X)
Colombia
Local time: 04:29
rizovainas
Explanation:
https://www.google.com.ar/webhp?sourceid=chrome-instant&ion=...

¡Suerte!
Selected response from:

nahuelhuapi
Argentina
Local time: 06:29
Grading comment
Thank you very much.
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1rizovainas
nahuelhuapi
4tegumentos de la raíz
Juan Arturo Blackmore Zerón
1 +1rizocoraza
Taña Dalglish


Discussion entries: 1





  

Answers


1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
rizovainas


Explanation:
https://www.google.com.ar/webhp?sourceid=chrome-instant&ion=...

¡Suerte!

nahuelhuapi
Argentina
Local time: 06:29
Works in field
Native speaker of: Native in SpanishSpanish
PRO pts in category: 67
Grading comment
Thank you very much.

Peer comments on this answer (and responses from the answerer)
agree  Mónica Algazi: ¡Eso!!! : ) http://es.slideshare.net/Genesismilena/interaccion-de-microo...
26 mins
  -> ¡Muchas gracias, Mónica! ¡Un abrazo y buen finde!
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2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
tegumentos de la raíz


Explanation:
Mi propuesta.

Juan Arturo Blackmore Zerón
Mexico
Local time: 04:29
Native speaker of: Spanish
PRO pts in category: 33
Login to enter a peer comment (or grade)

1 hr   confidence: Answerer confidence 1/5Answerer confidence 1/5 peer agreement (net): +1
rhizosheath
rizocoraza


Explanation:
http://www.jove.com/author/Richard_Simpson?language=Spanish
Diferencias en la eficacia de la absorción de fósforo en suelos ácidos podrían atribuirse no sólo a los efectos diferenciales de la toxicidad de aluminio en el crecimiento de la raíz entre los genotipos, sino también a las diferencias en la absorción de fósforo por unidad de longitud de raíz. Aunque GP-ALMT1 le ido mucho mejor GP en suelo ácido, es todavía no es tan eficiente en tomar fósforo como plantas cultivadas en tierra abonada con cal. GP-ALMT1 plantas cultivadas en suelos ácidos poseyeron ***rhizosheaths*** substancialmente más pequeño que las cultivadas en tierra abonada con cal, lo que sugiere que los pelos radicales eran más cortos. Se trata de una razón probable de la baja eficacia de la absorción de fósforo.


http://www.cabdirect.org/abstracts/20133209616.html;jsession...
Cultivable bacterial community from the rhizosheath of Amaranthus hypochondriacus.
Foreign Title
Comunidad bacteriana cultivable asociada a la **rizocoraza** de Amaranthus hypochondriacus.

I found two links, one which leave "rhizosheath" in English; and the other "rizocoraza".

HTH!

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Note added at 2 hrs (2015-10-03 00:10:34 GMT)
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Oops ... leaves.

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Note added at 2 hrs (2015-10-03 00:30:14 GMT)
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Otra "rizocaraza":
comunidad bacteriana cultivable asociada a la rizocoraza ...
www.redalyc.org/articulo.oa?id=57327411006 - Translate this page
by IP Moreno-Espíndola - ‎2013 - ‎Related articles
Se tomaron muestras de suelo de **rizocoraza** en cuatro épocas del cultivo (siembra, floración, cosecha y postcosecha); se purificaron y caracterizaron 38 ...

Taña Dalglish
Jamaica
Local time: 04:29
Native speaker of: English
PRO pts in category: 28

Peer comments on this answer (and responses from the answerer)
agree  Pablo Cruz
2 days 8 hrs
  -> Muchas gracias Pablo.
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