अंग्रेज़ी किताबें जो «SIPHONOGAMY» से संबंधित हैं
निम्नलिखित ग्रंथसूची चयनों में
siphonogamy का उपयोग पता करें।
siphonogamy aसे संबंधित किताबें और अंग्रेज़ी साहित्य में उसके उपयोग का संदर्भ प्रदान करने वाले उनके संक्षिप्त सार।.
1
Plant Developmental Biology - Biotechnological Perspectives: ...
The advent of multicellular gametophyte and siphonogamy in higher plants is
instrumental in improving efficiency of sexual reproduction. In species with tricel-
lular pollen grains, like Arabidopsis and rice, mature pollen grains are composed
of ...
Eng-Chong Pua, Michael Raymond Davey, 2010
2
Annual Plant Reviews, The Evolution of Plant Form
Another advance on the line leading to angiosperms was siphonogamy, which
appears to have originated independently from siphonogamy in conifers and
Gnetales, based on the placement of zooidogamous cycads and Ginkgo lower in
the ...
Barbara A. Ambrose, Michael D. Purugganan, 2012
3
Conifer Reproductive Biology
Its absence correlates with germination of pollen outside the nucellus, defined as
extended siphonogamy, found in Tsuga species and all members of the
Araucariaceae. But it Box 6.1 Zooidogamy and the pollination drop The
pollination drop ...
4
Plants: Diversity and Evolution
In more advanced seed plants the male nucleus is conveyed to the egg by a tube
in a process called siphonogamy. The integument may have evolved for several
reasons: r to promote more efficient pollination r as a means of protection from ...
Martin Ingrouille, Bill Eddie, 2006
5
A Dictionary of the Flowering Plants and Ferns
Siphonodon Griff. Celastraceae. 2 Malaya, Austr. Siphonogamy, fertilisation by
pollen tube. Siphonoglossa Oerst. Acanthaceae (iv. B). 3 Am. Siphonostegia
Benth. Scrophulariaceae (in. 3). 3 As. Siphonostelma Schlechter.
Asclepiadaceae (11.
John Christopher Willis, Herbert Kenneth Airy Shaw, 1973
6
Developmental Genetics of the Flower: Advances in Botanical ...
Glossopteris had swimming sperm (Nishida et al., 2004); as a Dollo character this
would force two origins for siphonogamy and double fertilization. Hence,
including fossils, siphonogamy cannot be a synapomorphy of angiosperms,
conifers, ...
7
Early Flowers and Angiosperm Evolution
... all supposed apomorphic similarities between angiosperms and specific
groups of living seed plants are convergent. It implies, for example, that
siphonogamy in angiosperms is not homologous with siphonogamy in conifers
and Gnetales.
Else Marie Friis, Peter R. Crane, Kaj Raunsgaard Pedersen, 2011
8
Fossil Plants: a Text-book for Students of Botany and ...
The pollen-chamber and its vascular supply paved the way for siphonogamy, that
is the development of a pollen-tube for the more direct transmission of the male
sperms. The highly developed mantle of tracheal tissue at the periphery of the ...
9
The Origins of Angiosperms and Their Biological Consequences
In some cases, the ancestral state was assumed to be present in fossil groups for
which information is lacking (e.g. angiosperms are linked with Gnetales on one
character, siphonogamy, but, as Crane recognizes, there is no reason to assume
...
Else Marie Friis, William Gilbert Chaloner, Peter R. Crane, 1987
10
Gymnosperm (naked seeds plant) : structure and development
... tissue between the pollen chamber and the female gametophyte. It thus acts
rather like a haustorium than like a gamete carrier which latter is the case in
Angiospermic siphonogamy. The haustorial pollen tube sometimes even
branches like ...
«SIPHONOGAMY» पद को शामिल करने वाली समाचार सामग्रियां
इसका पता लगाएं कि राष्ट्रीय और अंतर्राष्ट्रीय प्रेस ने निम्नलिखित समाचार सामग्रियों के बारे में क्या चर्चा की है और इस संदर्भ में
siphonogamy पद का कैसे उपयोग किया है।
"Plant Intelligence" Is Programmed, Not Intrinsic
He thinks like a plant, effortlessly calling on specific traits to look at how plants solve problems in similar ways to social insects -- from siphonogamy (in which ... «Discovery Institute, जून 15»
