Functional Interactions among Cytoskeleton, Membranes, and Cell Wall in the Pollen Tube of Flowering Plants

Li, Yiqin; Moscatelli, Alessandra; Cai, Giampiero; Cresti, Mauro

doi:10.1016/s0074-7696(08)61610-1

Cited by 90 publications

(88 citation statements)

References 277 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The finding that unesterified and methyl-esterified pectin epitopes localize in the tip of the wall supports the hypothesis that pectins are polymerized and esterified within the Golgi complex and then transported and deposited in the growing wall by secretory vesicles (Li et al, 1995;Li et al, 1997). After deposition, the esterified pectins become progressively de-esterified by the action of pectin methyltransferases (PME) leading to a more rigid form of pectin in the mature pollen wall by crosslink with Ca 2+ ions and boric acid (Carpita and Gibeaut, 1993;Li et al, 1997;Li et al, 2002;Holdaway-Clarke et al, 2003). The deposition of the secondary wall starts later and increases gradually in thickness back from the tip.…”

Section: B a D Csupporting

confidence: 74%

“…The pectin layer is expected to control the wall dynamics at the growing tip, being plastic enough to allow cell extension but also strong enough to support the high hydrostatic pressure exerted by the pollen tube cytoplasm (Steer and Steer, 1989;Benkert et al, 1997;Holdaway-Clarke et al, 2003;Geitmann and Parre, 2004). The finding that unesterified and methyl-esterified pectin epitopes localize in the tip of the wall supports the hypothesis that pectins are polymerized and esterified within the Golgi complex and then transported and deposited in the growing wall by secretory vesicles (Li et al, 1995;Li et al, 1997). After deposition, the esterified pectins become progressively de-esterified by the action of pectin methyltransferases (PME) leading to a more rigid form of pectin in the mature pollen wall by crosslink with Ca 2+ ions and boric acid (Carpita and Gibeaut, 1993;Li et al, 1997;Li et al, 2002;Holdaway-Clarke et al, 2003).…”

Section: B a D Cmentioning

confidence: 82%

“…Several studies demonstrated the involvement of the actin cytoskeleton in cytoplasmic streaming and the transport of secretory vesicles containing cell wall precursors (Steer and Steer, 1989;Pierson and Cresti, 1992;Derksen et al, 1995;Li et al, 1997). The actin microfilaments are organized in small cables or a meshwork of filaments ( Fig.…”

Section: B a D Cmentioning

confidence: 99%

See 2 more Smart Citations

Gametophyte interaction and sexual reproduction: how plants make a zygote

Boavida¹,

Vieira²,

Becker³

et al. 2005

Int. J. Dev. Biol.

View full text Add to dashboard Cite

The evolutionary success of higher plants relies on a very short gametophytic phase, which underlies the sexual reproduction cycle. Sexual plant reproduction takes place in special organs of the flower: pollen, the male gametophyte, is released from the anthers and then adheres, grows and interacts along various tissues of the female organs, collectively known as the pistil. Finally, it fertilizes the female gametophyte, the embryo sac. Pollen is released as bi or tricellular, highly de-hydrated and presumably containing all the biochemical components and transcripts to germinate. Upon hydration on the female tissues, it develops a cytoplasmic extension, the pollen tube, which is one of the fastest growing cells in nature. Pollen is completely "ready-to-go", but despite this seemingly simple reaction, very complex interactions take place with the female tissues. In higher animals, genetic mechanisms for sex determination establish striking developmental differences between males and females. In contrast, most higher plant species develop both male and female structures within the same flower, allowing self-fertilization. Outcrossing is ensured by self-incompatibility mechanisms, which evolved under precise genetic control, controlling self-recognition and cell-to-cell interaction. Equally important is pollen selection along the female tissues, where interactions between different cell types with inherent signalling properties correspond to check-points to ensure fertilization. Last but not least, pollen-pistil interaction occurs in a way that enables the correct targeting of the pollen tubes to the receptive ovules. In this review, we cover the basic mechanisms underlying sexual plant reproduction, from the structural and cellular determinants, to the most recent genetic advances.

show abstract

Section: B a D Csupporting

confidence: 74%

Section: B a D Cmentioning

confidence: 82%

See 1 more Smart Citation

Gametophyte interaction and sexual reproduction: how plants make a zygote

Boavida¹,

Vieira²,

Becker³

et al. 2005

Int. J. Dev. Biol.

View full text Add to dashboard Cite

show abstract

“…Just behind the tip, lateral tube walls become reinforced by deesterification of tip pectins (26,28) and secretion of a callose secondary wall (29,30). This unique pollen tube wall structure is thought to allow faster growth rates than possible in other tip-growing cells because (i) the pectic tip is more plastic and rapidly extensible, (ii) the mature tube cell wall has greater resistance to tension stress because of deesterification of pectins and secretion of callose, and (iii) callose plugs help maintain positive turgor pressure in the growing tip (27,31). There is evidence that building an amorphous callose-based wall is faster and more energy efficient than biosynthesis of a cellulose microfibril-based wall (29,32).…”

Section: Relationship Between Pollen Tube Growth and Carpel Evolutionmentioning

confidence: 99%

Novelties of the flowering plant pollen tube underlie diversification of a key life history stage

Williams

2008

Proc. Natl. Acad. Sci. U.S.A.

128

155

View full text Add to dashboard Cite

The origin and rapid diversification of flowering plants has puzzled evolutionary biologists, dating back to Charles Darwin. Since that time a number of key life history and morphological traits have been proposed as developmental correlates of the extraordinary diversity and ecological success of angiosperms. Here, I identify several innovations that were fundamental to the evolutionary lability of angiosperm reproduction, and hence to their diversification. In gymnosperms pollen reception must be near the egg largely because sperm swim or are transported by pollen tubes that grow at very slow rates (< Ϸ20 m/h). In contrast, pollen tube growth rates of taxa in ancient angiosperm lineages (Amborella, Nuphar, and Austrobaileya) range from Ϸ80 to 600 m/h. Comparative analyses point to accelerated pollen tube growth rate as a critical innovation that preceded the origin of the true closed carpel, long styles, multiseeded ovaries, and, in monocots and eudicots, much faster pollen tube growth rates. Ancient angiosperm pollen tubes all have callosic walls and callose plugs (in contrast, no gymnosperms have these features). The early association of the callose-walled growth pattern with accelerated pollen tube growth rate underlies a striking repeated pattern of faster and longer-distance pollen tube growth often within solid pathways in phylogenetically derived angiosperms. Pollen tube innovations are a key component of the spectacular diversification of carpel (flower and fruit) form and reproductive cycles in flowering plants.heterochrony ͉ key innovation ͉ modularity ͉ origin of angiosperms ͉ evo-devo

show abstract

“…5,33,47,57,93 The cytoskeleton is a complex and highly organized structure that has been shown to play a major role not only in controlling cell shape, but also in regulating motility, 8,60,84,94,95 division 7,16,46,86,98 , and polarity. 21,23,32,45,72,74,99 The cytoskeleton itself has been shown to contribute directly to many processes in mechanical stimulation including its own remodeling under fluid shear stress, the strengthening of mechanical response by connecting the intermediate filaments to intercellular adhesion sites, and remodeling the actin cytoskeleton in the direction of minimal deformation under equibiaxial and uniaxial strain with elastomeric membranes.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Intracellular Organization and Functional Architecture Mediating Cellular Behavior

LeDuc

Bellin

2006

Ann Biomed Eng

View full text Add to dashboard Cite

Abstract-Cells function based on a complex set of interactions that control pathways resulting in ultimate cell fates including proliferation, differentiation, and apoptosis. The interworkings of this immensely dense network of intracellular molecules are influenced by more than random protein and nucleic acid distribution where their interactions culminate in distinct cellular function. By probing the design of these biological systems from an engineering perspective, researchers can gain great insight that will aid in building and utilizing systems that are on this size scale where traditional large-scale rules may fail to apply. The organized interaction and gradient distribution in intracellular space imply a structural architecture that modulates cellular processes by influencing biochemical interactions including transport and binding-reactions. One significant structure that plays a role in this modulation is the cell cytoskeleton. Here, we discuss the cytoskeleton as a central and integrating functional structure in influencing cell processes and we describe technology useful for probing this structure. We explain the nanometer scale science of cytoskeletal structure with respect to intracellular organization, mechanotransduction, cytoskeletal-associated proteins, and motor molecules, as well as nano-and microtechnologies that are applicable for experimental studies of the cytoskeleton. This biological architecture of the cytoskeleton influences molecular, cellular, and physiological processes through structured multimodular and hierarchical principles centered on these functional filaments. Through investigating these organic systems that have evolved over billions of years, understanding in biology, engineering, and nanometer-scaled science will be advanced.

show abstract

Functional Interactions among Cytoskeleton, Membranes, and Cell Wall in the Pollen Tube of Flowering Plants

Cited by 90 publications

References 277 publications

Gametophyte interaction and sexual reproduction: how plants make a zygote

Gametophyte interaction and sexual reproduction: how plants make a zygote

Novelties of the flowering plant pollen tube underlie diversification of a key life history stage

Nanoscale Intracellular Organization and Functional Architecture Mediating Cellular Behavior

Contact Info

Product

Resources

About