The angiosperm Rafflesia exhibits a unique biology, including a growth strategy that involves endophytic parasitism of a specific host, with only the gigantic flower externally visible. The Rafflesia possesses many unique evolutionary, developmental, and morphological features that are rooted in yet to be explained physiological processes. Although studies on the molecular biology of Rafflesia are limited by sampling difficulties due to its rarity in the wild and the short life span of its flower, current advances in high-throughput sequencing technology have allowed for the genome and transcriptome level dissection of the molecular mechanisms behind the unique characteristics of this parasitic plant. In this review, we summarize major findings on the cryptic biology of Rafflesia and provide insights into future research directions. The wealth of data obtained can improve our understanding of Rafflesia species and contribute towards the conservation strategy of this endangered plant.
Pioneer species of seed plants are common and important species in the succession. This group of plant occurred everywhere in Peninsular Malaysia especially in the gaps, open areas and roadsides. In this paper we discussed the list of pioneer species found in Kuala Keniam and surrounding area at Taman Negara, Pahang. A total of 16 species of pioneers were recorded from Kuala Keniam and surrounding area at Taman Negara Pahang. Macaranga gigantea is among the common species found especially near the base camp of Kuala Keniam. Only two species of pioneers found in the plot studies, namely Balakata baccata and Cratoxylum formosum. The pioneer is uncommon in the forest except in certain forest gaps and disturbed area. Two species, viz. Mallotus floribundus and Melastoma malabathricum were found on the riverbanks.
The wet and fast-flowed rivers in the lowland and hill forest at Taman Negara provide a suitable habitat for the rheophytes and riparian flora of seed plants. Fourteen species of rheophytes and riparian are listed and discussed in this paper, of which some taxa are locally common along the riverbanks of Sungai Tahan and Sungai Tembeling.
A preliminary survey on Burseraceae diversity was conducted in Kuala Keniam and surrounding area at Taman Negara Pahang, Peninsular Malaysia. The data from recent scientific expedition in early September 2020 were compiled with the previous collections lodged in the Herbarium of Universiti Kebangsaan Malaysia (UKMB), Herbarium of Forest Research Institute Malaysia (KEP), Herbarium of University of Malaya (KLU) and Herbarium of Singapore Botanic Gardens (SING). A total of 19 taxa of Burseraceae from five genera were listed in this area. Santiria and Dacryodes represented the highest species with six (6) taxa each followed by Canarium with five (5) species. The common species that we have counted around Kuala Keniam are Canarium littorale and Dacryodes rostrata. From the flora survey, we counted Canarium littorale, C. pilosum, D. costata, D. rostrata, D. rugosa, Santiria griffithii, S. laevigata and Triomma malaccensis. Meanwhile, in the plot study, we counted Canarium littorale, C. pilosum, Dacryodes rostrata, D. rugosa, Santiria laevigata, S. tomentosa and Scutinanthe brunnea.
C30H18F4IrN5·1.5[H2O], tetragonal, I41/a (no. 88), a = 37.5562(5) Å, b = 37.5562(5) Å, c = 9.2031(2) Å, V = 12980.7(4) Å3, Z = 16, R
gt
(F) = 0.0312, wR
ref(F
2) = 0.1166, T = 300(2) K.
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