Development of included phloem of Calycopteris floribunda Lamk. (Combretaceae)

Rajput, Kishore S.; Patil, Vijay S.; Rao, K. S.

doi:10.3159/09-ra-010.1

Cited by 13 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this chapter we summarize general aspects of the vascular system of lianas, and provide new data that show how the vascular anatomy of lianas has evolved and diversified, and how lianas respond to environmental cues. A neotropical bias will be evident inasmuch as this is our research expertise, though aspects of paleotropical lianas are also covered based on the literature (Obaton 1960;Rajput & Rao 1999, 2003Rajput et al 2009;Patil et al 2011). An Appendix of glossary terms is also given.…”

Section: Introduction: the Unique Vascular System Of Lianasmentioning

confidence: 99%

Liana anatomy: a broad perspective on structural evolution of the vascular system

2014

View full text Add to dashboard Cite

Section: Introduction: the Unique Vascular System Of Lianasmentioning

confidence: 99%

Liana anatomy: a broad perspective on structural evolution of the vascular system

2014

View full text Add to dashboard Cite

“…In the present study, parenchyma distribution changes from scanty paratracheal to unilateral paratracheal type. Though there are several studies on the formation of interxylary phloem in various dicotyledon species (Scott & Brebner 1889;Solereder 1908;Chalk & Chattaway 1937;Cockrell 1941;Duvigneaud et al 1952, Obaton 1960, Leeuwenberg 1969, den Outer & van Veenedaal 1981, Metcalfe 1983, van Veenendaal & den Outer 1993, Rajput et al 2009, 2010 but there is no much comparative information on the dimensional details of sieve elements formed externally and at interxylary position by a cambial ring. van Veenendaal & den Outer (1993) documented similar variation in the length and width of the external and interxylary sieve tube elements of Strychnos millepunctata Leeuwenb.…”

Section: Discussionmentioning

confidence: 99%

“…Interxylary phloem are composed of strands of isolated or group of sieve tube elements and companion cells along with axial parenchyma embedded within the secondary xylem (IAWA Committee 1989, van Veenendaal & den Outer 1993, Rajput et al 2009, Carlquist 2002, 2013. Interxylary phloem strands vary in sizes and they may anastomose to form a three-dimensional structure that inter-connects each other.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stem anatomy and development of interxylary phloem in Strychnos bredemeyeri (Loganiaceae)

Moya

Gondaliya

Rajput

2017

An Biol

View full text Add to dashboard Cite

Anatomía del tallo y desarrollo del floema interxilar en Strychnos bredemeyeri (Loganiaceae)En Strychnos bredemeyeri, pequeñas porciones de cambium dejan temporalmente de producir xilema secundario y produce más floema centrífugamente. Un nuevo segmento del cambium se diferencia en la parte exterior de este floema formado, entonces estos se unen al cilindro regular para formar un anillo. Esta repetida actividad da como resultado la inclusión de islas de floema dentro del xilema secundario, llamado floema interxilar. Luego aparecen nuevos elementos del floema asociado al cambium y a las islas de floema que aplastan los elementos no conductores de islas de floema. Junto al floema interxilar, el floema intraxilar está formado por la adición desde las células marginales de la médula. Posteriormente, pequeños arcos del cambium interno se inician en el borde interno del protoxilema en tallos gruesos. Palabras clave:Variante en el cambium, Floema incluso, Floema interxilar, Liana, Floema intraxilar, Xilema secundario, Floema secundario. AbstractIn Strychnos bredemeyeri small segments of the cambium cease to produce secondary xylem temporarily and produce more phloem centrifugally. A new segment of the cambium differentiates outside to this phloem, which unite with the regular cylinder to form a complete ring by leaving the cambium segment in the furrow. Such repeated activity of cambium results in inclusion of phloem islands within the secondary xylem, called interxylary phloem. New phloem elements added by the cambium associated with phloem islands crush the non-conducting sieve elements in older phloem islands. Beside interxylary phloem, intraxylary phloem is added from the marginal pith cells. Subsequently, small arcs of the internal cambium initiate on the inner margin of the protoxylem in thick stems.

show abstract

“…A unidirectional mode of development is what SINGH (1944) has described for Salvadora (Salvadoraceae) and as reported for Combretum (Combretaceae) and Entada of Fabaceae (EAMS & MCDANIELS 1947). These two genera (Salvadora and Combratum) however, do not have successive cambia and have bidirectional cambia (CARLQUIST 2002;RAJPUT et al 2009b).…”

Section: Discussionmentioning

confidence: 99%

Development of lateral meristem and pattern of secondary growth in stems and roots of Spinacia oleracea Linn (Amaranthaceae)

Rajput

Patil

Kapadane³

2010

Feddes Repertorium

View full text Add to dashboard Cite

Development of lateral meristem and pattern of secondary growth in the stems and roots of Spinacia oleracea Linn (Amaranthaceae) were studied anatomically. Maturing stems and roots increased in thickness by developing successive rings of cambia which produce secondary vascular elements embedded in the groundmass of thin walled parenchymatous conjunctive tissues. Second ring of the cambium was originated outside the first ring of the cambium and gave rise to parenchyma cells and sieve tube elements on the outer side whereas it gave rise to conjunctive tissue and secondary xylem on the inner side. Prior to the development of second ring of cambium, parenchyma cells located outside to the previous cambium dedifferentiated and acquired meristematic property which led to the formation of meristematic bands of radially arranged cells. Later on each successive ring of cambium developed in similar fashion as described above. The groundmass of the stems and roots was mostly composed of thin walled conjunctive tissue on both the outer and inner side of each cambium, whereas formation of thick walled conducting elements of secondary xylem and secondary phloem remained restricted to the small segments of the vascular cambium. Secondary xylem was composed of vessel elements, tracheids and libriform fibres whereas secondary phloem comprised of sieve tube elements, companion cells and axial parenchyma with no typical rays even in the mature stems. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

show abstract

Development of included phloem of Calycopteris floribunda Lamk. (Combretaceae)

Cited by 13 publications

References 27 publications

Liana anatomy: a broad perspective on structural evolution of the vascular system

Liana anatomy: a broad perspective on structural evolution of the vascular system

Stem anatomy and development of interxylary phloem in Strychnos bredemeyeri (Loganiaceae)

Development of lateral meristem and pattern of secondary growth in stems and roots of Spinacia oleracea Linn (Amaranthaceae)

Contact Info

Product

Resources

About