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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Buletin Kebun Raya
Titien Ngatinem Praptosuwiryo
Pusat Konservasi Tumbuhan Kebun Raya Bogor, Lembaga Ilmu Pengetahuan Indonesia
Agriculture, Biological Sciences & Forestry Environmental Science

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SITOLOGI DAN TIPE REPRODUKSI Pteris multifida Poir. (PTERIDACEAE) Hastuti, Diah Virsa; Praptosuwiryo, Titien Ngatinem; Djuita, Nina Ratna
Buletin Kebun Raya Vol 14, No 1 (2011): Buletin Kebun Raya Vol. 14 (1) Januari 2011
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Cytological observations have been carried out by several researchers in South China, Japan, Ceylon, Hongkong, Himalaya and Java. The results from various regions showed that P. multifida had a fairly high genetic variation, namely diploid, triploid and tetraploid types. Therefore cytological and reproductive study on P. multifida from its geographical distribution areas need to be done. The objectives of this research were to observe the somatic chromosome number and reproductive type of P. multifida, and to recognize the relationship between morphological variation and its ploidy level as well as stomatal index. Plants were collected from several localities in Bogor. Ploidy level was determined by observing somatic chromosome number by using squash methods. Reproductive type was determined by counting spore number in each sporangium. Morphological characters examined were the stipe, lamina, pinnae, veins, and indusium. Observations of stomata and epidermis of leaves were done by making an incision paradermal leaf. Pteris multifida has two ploidy level and reproduction type, namely apogamous triploid (2n = 87) and sexual tetraploid (2n = 116). The two ploidy levels could not be distinguished based on morphological characteristics, but they can be differentiated by their epidermal cells number. Apogamous triploid has fewer number of epidermal cells, the sexual tetraploid has a greater number of epidermis.
CYTOLOGICAL OBSERVATIONS ON FERN GENUS Pteris IN THE BOGOR BOTANIC GARDENS Praptosuwiryo, Titien Ngatinem; Darnaedi, Dedy
Buletin Kebun Raya Vol 11, No 2 (2008): Buletin Kebun Raya Vol. 11 (2) Juli 2008
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Pengamatan sitologi dan kromosom somatik dilakukan pada 23 individu dari enam jenis tumbuhan paku genus Pteris (Pteridaceae) yang tumbuh meliar di Kebun Raya Bogor. Hasil pengamatan menunjukkan bahwa jumlah kromosom dasar pada keenam jenis Pteris yang diamati konsisten, yaitu x = 29. Ras diploid dengan 2n = 58 ditemukan pada P. biaurita, P. fauriei dan P. tripartita. Ras triploid dengan 2n = 87 terdapat pada P. fauriei dan P. multifida. Sedangkan ras tetraploid dengan 2n = 116 ditemukan pada P. ensiformis, P. tripartita, dan P. vittata. Informasi tentang P. tripartita ras diploid dan P. multifida ras triploid dilaporkan pertama kali untuk kawasan Malesia. Sedangkan informasi kromosom P. fauriei, P. multifida, dan P. vittata merupakan catatan sitologi baru untuk Pulau Jawa. Jenis-jenis yang memiliki lebih dari satu sitotipe diamati morfologinya dan dibahas secara singkat.
CYTOLOGICAL OBSERVATIONS ON FERN GENUS Pteris IN THE BOGOR BOTANIC GARDENS Praptosuwiryo, Titien Ngatinem; Darnaedi, Dedy
Buletin Kebun Raya Vol 11, No 2 (2008): Buletin Kebun Raya Indonesia Vol. 11 (2) July 2008
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Pengamatan sitologi dan kromosom somatik dilakukan pada 23 individu dari enam jenis tumbuhan paku genus Pteris (Pteridaceae) yang tumbuh meliar di Kebun Raya Bogor. Hasil pengamatan menunjukkan bahwa jumlah kromosom dasar pada keenam jenis Pteris yang diamati konsisten, yaitu x = 29. Ras diploid dengan 2n = 58 ditemukan pada P. biaurita, P. fauriei dan P. tripartita. Ras triploid dengan 2n = 87 terdapat pada P. fauriei dan P. multifida. Sedangkan ras tetraploid dengan 2n = 116 ditemukan pada P. ensiformis, P. tripartita, dan P. vittata. Informasi tentang P. tripartita ras diploid dan P. multifida ras triploid dilaporkan pertama kali untuk kawasan Malesia. Sedangkan informasi kromosom P. fauriei, P. multifida, dan P. vittata merupakan catatan sitologi baru untuk Pulau Jawa. Jenis-jenis yang memiliki lebih dari satu sitotipe diamati morfologinya dan dibahas secara singkat.
A NEW RECORD OF THE RHEOPHYTIC FERN Osmunda angustifolia (OSMUNDACEAE) FROM SUMATRA INCLUDING A NEW CYTOLOGICAL RECORD Praptosuwiryo, Titien Ngatinem
Buletin Kebun Raya Vol 18, No 1 (2015): Buletin Kebun Raya Vol. 18 (1) January 2015
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Osmunda angustifolia Ching ex Ching et Wang (Osmundaceae) was, formerly, known to be distributed in China (Guandong), Hainan, Hongkong, and Taiwan. Now, O. angustifolia is reported as a newly recorded species in Sumatra. A complete morphological description with photographs is presented. It is defined as a rare species in Indonesia. A cytological record is also reported for the first time for the Sumatran species. The somatic chromosome number of root tip cells of O. angustifolia is 2n = 44 (diploid).
SITOLOGI DAN TIPE REPRODUKSI Pteris multifida Poir. (PTERIDACEAE) Hastuti, Diah Virsa; Praptosuwiryo, Titien Ngatinem; Djuita, Nina Ratna
Buletin Kebun Raya Vol 14, No 1 (2011): Buletin Kebun Raya Vol. 14 (1) January 2011
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Cytological observations have been carried out by several researchers in South China, Japan, Ceylon, Hongkong, Himalaya and Java. The results from various regions showed that P. multifida had a fairly high genetic variation, namely diploid, triploid and tetraploid types. Therefore cytological and reproductive study on P. multifida from its geographical distribution areas need to be done. The objectives of this research were to observe the somatic chromosome number and reproductive type of P. multifida, and to recognize the relationship between morphological variation and its ploidy level as well as stomatal index. Plants were collected from several localities in Bogor. Ploidy level was determined by observing somatic chromosome number by using squash methods. Reproductive type was determined by counting spore number in each sporangium. Morphological characters examined were the stipe, lamina, pinnae, veins, and indusium. Observations of stomata and epidermis of leaves were done by making an incision paradermal leaf. Pteris multifida has two ploidy level and reproduction type, namely apogamous triploid (2n = 87) and sexual tetraploid (2n = 116). The two ploidy levels could not be distinguished based on morphological characteristics, but they can be differentiated by their epidermal cells number. Apogamous triploid has fewer number of epidermal cells, the sexual tetraploid has a greater number of epidermis.
Gametophyte Morphology and Development of Six Species of Pteris (Pteridaceae) from Java Island Indonesia Puspitasari, Dwi Sunarti; Chikmawati, Tatik; Praptosuwiryo, Titien Ngatinem
Journal of Tropical Life Science Vol 5, No 2 (2015)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.05.02.08

Abstract

The morphology of sporophyte, the type of reproduction, and cytology of Pteris had been reported, while the gametophyte morphology of Pteris in Java island has not been studied yet. The objective of this study was to describe the gametophyte morphology and development of P. biaurita, P. ensiformis,  P.exelsa, P.longipinnula, P. tripartita, and   P. vittata in Java island. Spores were obtained from fertile leaves of Pteris plants originated from several locations in Java island. The number of spores per sporangium were counted from fresh fertile leaves with mature sporangia. As much as 0.002 g spores was sown in transparent box with sterile medium contain of vermiculite, spaghnum moss, and perlite with ratio 2:2:1. The gametophyte development of each species was observed under a microscope every 7 days. The spores of P. ensiformis were germinated faster, 10 days after sowing, while the spores of P.longipinnula were germinated slower, 18 days after sowing.  The pattern of spore germination is Vittaria-type. The development of gametophyte is Ceratopteris-type in common, but in a few cases is the Adiantum-type. The gametophyte development of observed Pteris spesies are varied in six characters including the number of filament cell, germinated time, formation time of notch and gametangia, margin shape, and development type.
Population Study of the Golden Chicken Fern (Cibotium barometz (L.) J. Sm. in Riau Province, Sumatra Praptosuwiryo, Titien Ngatinem; Puspitaningtyas, Dwi Murti; Pribadi, Didit Okta; Rugayah, Rugayah
Journal of Tropical Life Science Vol 7, No 2 (2017)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.07.02.13

Abstract

Cibotium barometz (L.) J.Sm. (Cibotiaceae) is an important export commodity for both traditional and mod-ern medicine. Populations of this species in several countries have decreased rapidly due to the uncontrolled collection of the rhizome parts for medicinal purposes. Since 1976, this species has been included in Appendix II of the Convention on International Trade in Endangered Species (CITES). This means that no export is allowed without a prior permit issued by the CITES committee.  In order to utilize an endangered species sustainably, the global NDF (Non-Detriments Finding) system is applied for determining annual quotas. Therefore, monitoring and updating the inventory of C. barometz in its natural habitat should be carried out annually. A population study of C. barometz carried out in 2011 in Riau Province, Sumatra, is reported here. The aims of the study were: 1) to inventory C. barometz and determine its variation in Riau Province, Suma-tra, 2) to study the distribution and ecology of C. barometz, and 3) to assess the population size of this spe-cies by using random search methodology incorporating belt line transects. Two variants of C. barometz are recognized; they are the golden yellow and golden brown variants. C. barometz is distributed in eight loca-tions of Kampar District of Riau Province, in the secondary forest and rubber agroforest between 80 m and 600 m above sea level (asl). This species grows well in open to partially opened areas of secondary forest and rubber plantation in hills with a range of slope between 30° and 90°, with a relatively high humidity, 60 – 90%, in acid to nearly neutral soil, with a range of soil fertility from very poor to very humus rich soil.  The average population density determined in our study was 20 plants per 100 square meter. The highest popula-tion size was in the secondary forest of Bukit Kuda Beban at 590 – 600 m asl., viz. 9405 plants with a popula-tion density  of 47 plants per 100 square meter.
Co-Authors Dedy Darnaedi Diah Virsa Hastuti Didit Okta Pribadi Dwi Murti Puspitaningtyas, Dwi Murti Dwi Sunarti Puspitasari, Dwi Sunarti Nina Ratna Djuita Rugayah Rugayah TATIK CHIKMAWATI